Wiki

There are many technical terms you might come across as you learn about repair, how things work, and electrical and electronic fundamentals, but don't let that put you off. Here you will find simple definitions of most of them.

==Summary==
A primary aim of the Restart Wiki is to assume no previous knowledge, only a willingness to learn, and so we try to introduce and explain technical terms as we go along. But you might dip in and out or read the end of an article before the beginning, or you might consult other sources containing unfamiliar terms.

So this page gathers together as many technical terms as possible that you might come across in your fixing-related research, cross-referenced and linked in to main wiki articles where relevant.

We have an ambition to translate the whole Wiki into several other languages. If you are proficient in a language other than English it would be a great help if you could submit translations of some of these definitions in this [https://docs.google.com/spreadsheets/d/15_beGweaZ4f8Y3BbXKQp7YQHYbTlnLJsuHKiBiUobvc/edit#gid=0 Google Sheet].

If you are looking for technical terms in other languages, iFixit have a [https://about.ifixit.com/Wiki/Translator_Guidelines#Section_NEW_Download_our_Dictionary_of_Technical_Terms multilingual dictionary]. Whereas the intention of our Glossary is to help you understand unfamiliar terms, the purpose of theirs is to facilitate the translation of repair guides, hence the coverage is somewhat different.

==Glossary of Terms==

'''[[#0-9|0-9]] [[#A|A]] [[#B|B]] [[#C|C]] [[#D|D]] [[#E|E]] [[#F|F]] [[#G|G]] [[#H|H]] [[#I|I]] [[#J|J]] [[#K|K]] [[#L|L]] [[#M|M]] [[#N|N]] [[#O|O]] [[#P|P]] [[#Q|Q]] [[#R|R]] [[#S|S]] [[#T|T]] [[#U|U]] [[#V|V]] [[#W|W]] [[#X|X]] [[#Y|Y]] [[#Z|Z]]'''

<!--
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For consistency, please follow the same style and conventions:
- Cross-reference terms within the glossary wherever possible.
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-->
{| class="wikitable"
|'''Term'''
|'''Meaning'''

|-
| colspan="2" style="background-color: white;" | <span id="0-9">'''0 - 9'''</span>

|-
|<span id="0-Day">0-Day</span>
|
{{Glossary:Zero Day}}

|-
|<span id="2FA">2FA</span>
|
{{Glossary:Two Factor Authentication}}

|-
|<span id="3 Phase">3 Phase</span>
|
{{Glossary:3 Phase}}

|-
|<span id="3-Terminal Regulator">3-Terminal Regulator</span>
|
{{Glossary:3-Terminal Regulator}}

|-
| colspan="2" style="background-color: white;" | <span id="A">'''A'''</span>

|-
|<span id="AC">AC</span>
|
{{Glossary:AC}}

|-
|<span id="AC/DC motor">AC/DC motor</span>
|
{{Glossary:Universal Motor}}

|-
|<span id="Adware">Adware</span>
|
{{Glossary:Adware}}

|-
|<span id="AF">AF</span>
|
{{Glossary:AF}}

|-
|<span id="Aftermarket">Aftermarket</span>
|
{{Glossary:Aftermarket}}

|-
|<span id="AHCI">AHCI</span>
|
{{Glossary:AHCI}}

|-
|<span id="ALU">ALU</span>
|
{{Glossary:ALU}}

|-
|<span id="AM">AM</span>
|
{{Glossary:AM}}

|-
|<span id="AMD64">AMD64</span>
|
{{Glossary:AMD64}}

|-
|<span id="Amp">Amp</span>
|
{{Glossary:Amp}}

|-
|<span id="Analogue">Analogue</span>
|
{{Glossary:Analogue}}

|-
|<span id="Anode">Anode</span>
|
{{Glossary:Anode}}

|-
|<span id="ARM">ARM</span>
|
{{Glossary:ARM}}

|-
|<span id="ASCII">ASCII</span>
|
{{Glossary:ASCII}}

|-
|<span id="ASIC">ASIC</span>
|
{{Glossary:ASIC}}

|-
|<span id="Assembler">Assembler</span>
|
{{Glossary:Assembler}}

|-
|<span id="Asymmetric cryptography">Asymmetric cryptography</span>
|
{{Glossary:Public key cryptography}}

|-
|<span id="ATA">ATA</span>
|
{{Glossary:ATA}}

|-
|<span id="AWG">AWG</span>
|
{{Glossary:AWG}}

|-
| colspan="2" style="background-color: white;" | <span id="B">'''B'''</span>

|-
|<span id="B7G">B7G</span>
|
{{Glossary:B7G}}

|-
|<span id="B9A">B9A</span>
|
{{Glossary:B9A}}

|-
|<span id="Back EMF">Back EMF</span>
|
{{Glossary:Back EMF}}
|-
|<span id="Ballast>Ballast</span>
|
{{Glossary:Ballast}}

|-
|<span id="Balun">Balun</span>
|
{{Glossary:Balun}}

|-
|<span id="Base">Base</span>
|
{{Glossary:Emitter, Base, Collector}}

|-
|<span id="Bathtub curve">Bathtub curve</span>
|
{{Glossary:Bathtub curve}}

|-
|<span id="Battery Management System">Battery Management System</span>
|
{{Glossary:BMS}}

|-
|<span id="BC">BC</span>
|
{{Glossary:BC}}

|-
|<span id="BGA">BGA</span>
|
{{Glossary:BGA}}

|-
|<span id="Bimetallic Strip">Bimetallic Strip</span>
|
{{Glossary:Bimetallic Strip}}

|-
|<span id="Binary">Binary</span>
|
{{Glossary:Binary}}

|-
|<span id="BIOS">BIOS</span>
|
{{Glossary:BIOS}}

|-
|<span id="Bipolar Transistor">Bipolar Transistor</span>
|
{{Glossary:Junction Transistor}}

|-
|<span id="Birmingham screwdriver">Birmingham screwdriver</span>
|
{{Glossary:Birmingham screwdriver}}

|-
|<span id="Bit">Bit</span>
|
{{Glossary:Bit}}

|-
|<span id="BJT">BJT</span>
|
{{Glossary:Junction Transistor}}

|-
|<span id="Black Box">Black Box</span>
|
{{Glossary:Black Box}}

|-
|<span id="BLE">BLE</span>
|
{{Glossary:BLE}}

|-
|<span id="Bloatware">Bloatware</span>
|
{{Glossary:Bloatware}}

|-
|<span id="Bluetooth">Bluetooth</span>
|
{{Glossary:Bluetooth}}

|-
|<span id="BMS">BMS</span>
|
{{Glossary:BMS}}

|-
|<span id="BNC">BNC</span>
|
{{Glossary:BNC}}

|-
|<span id="Boost regulator">Boost regulator</span>
|
{{Glossary:Boost regulator}}

|-
|<span id="Bootstrap">Bootstrap</span>
|
{{Glossary:Bootstrap}}

|-
|<span id="Bot">Bot</span>
|
{{Glossary:Bot}}

|-
|<span id="Brick">Brick</span>
|
{{Glossary:Brick}}

|-
|<span id="Bridge Rectifier">Bridge Rectifier</span>
|
{{Glossary:Bridge Rectifier}}

|-
|<span id="Brush">Brush</span>
|
{{Glossary:Brush}}

|-
|<span id="Brushless Motor">Brushless Motor</span>
|
{{Glossary:Brushless Motor}}

|-
|<span id="Brute force attack">Brute force attack</span>
|
{{Glossary:Brute force attack}}

|-
|<span id="Buck regulator">Buck regulator</span>
|
{{Glossary:Buck regulator}}

|-
|<span id="Buffer overflow vulnerability">Buffer overflow vulnerability</span>
|
{{Glossary:Buffer overflow vulnerability}}

|-
|<span id="Bug">Bug</span>
|
{{Glossary:Bug}}

|-
|<span id="Bus">Bus</span>
|
{{Glossary:Bus}}

|-
|<span id="Byte">Byte</span>
|
{{Glossary:Byte}}

|-
| colspan="2" style="background-color: white;" | <span id="C">'''C'''</span>

|-
|<span id="Cache">Cache</span>
|
{{Glossary:Cache}}

|-
|<span id="Carrier">Carrier</span>
|
{{Glossary:Carrier}}

|-
|<span id="Capacitor">Capacitor</span>
|
{{Glossary:Capacitor}}

|-
|<span id="Capacitance">Capacitance</span>
|
{{Glossary:Capacitance}}

|-
|<span id="Cathode">Cathode</span>
|
{{Glossary:Cathode}}

|-
|<span id="CCFL">CCFL</span>
|
{{Glossary:CCFL}}

|-
|<span id="Ceramic resonator>Ceramic resonator</span>
|
{{Glossary:Ceramic resonator}}

|-
|<span id="Choke">Choke</span>
|
{{Glossary:Inductor}}

|-
|<span id="Chrominance">Chrominance</span>
|
{{Glossary:Chrominance}}

|-
|<span id="Circuit">Circuit</span>
|
{{Glossary:Circuit}}

|-
|<span id="Circuit Diagram">Circuit Diagram</span>
|
{{Glossary:Circuit Diagram}}

|-
|<span id="Circular economy">Circular economy</span>
|
{{Glossary:Circular economy}}

|-
|<span id="CISC">CISC</span>
|
{{Glossary:CISC}}

|-
|<span id="CLI">CLI</span>
|
{{Glossary:CLI}}

|-
|<span id="Class 1/2/3">Class 1/2/3</span>
|
{{Glossary:Class 1/2/3}}

|-
|<span id="Class A/B/C/D">Class A/B/C/D</span>
|
{{Glossary:Class A/B/C/D}}

|-
|<span id="Class X/Y">Class X/Y</span>
|
{{Glossary:Class X/Y}}

|-
|<span id="Client">Client</span>
|
{{Glossary:Client}}

|-
|<span id="Cloud">Cloud</span>
|
{{Glossary:Cloud}}

|-
|<span id="CMOS">CMOS</span>
|
{{Glossary:CMOS}}

|-
|<span id="CMY">CMY</span>
|
{{Glossary:CMY}}

|-
|<span id="CMYK">CMYK</span>
|
{{Glossary:CMYK}}

|-
|<span id="COB">COB</span>
|
{{Glossary:COB}}

|-
|<span id="Collector">Collector</span>
|
{{Glossary:Emitter, Base, Collector}}

|-
|<span id="Collet">Collet</span>
|
{{Glossary:Collet}}

|-
|<span id="COM port">COM port</span>
|
{{Glossary:COM port}}

|-
|<span id="Commutator">Commutator</span>
|
{{Glossary:Commutator}}

|-
|<span id="Compact Fluorescent Lamp">Compact Fluorescent Lamp</span>
|
{{Glossary:Compact Fluorescent Lamp}}

|-
|<span id="Condenser">Condenser</span>
|
{{Glossary:Capacitor}}

|-
|<span id="Condenser microphone">Condenser microphone</span>
|
{{Glossary:Condenser microphone}}

|-
|<span id="Conductor">Conductor</span>
|
{{Glossary:Conductor}}

|-
|<span id="Conflict Materials">Conflict Materials</span>
|
{{Glossary:Conflict Materials}}

|-
|<span id="Continuity">Continuity</span>
|
{{Glossary:Continuity}}

|-
|<span id="Cookie">Cookie</span>
|
{{Glossary:Cookie}}

|-
|<span id="Coreless motor">Coreless motor</span>
|
{{Glossary:Coreless motor}}

|-
|<span id="Covert channel attack">Covert channel attack</span>
|
{{Glossary:Side channel attack}}

|-
|<span id="Cover A/B/C/D">Cover A/B/C/D</span>
|
{{Glossary:Cover A/B/C/D}}

|-
|<span id="CPU">CPU</span>
|
{{Glossary:CPU}}

|-
|<span id="Crapware">Crapware</span>
|
{{Glossary:Crapware}}

|-
|<span id="Credential stuffing">Credential stuffing</span>
|
{{Glossary:Credential stuffing}}

|-
|<span id="Crimp">Crimp</span>
|
{{Glossary:Crimp}}

|-
|<span id="CRM">CRM</span>
|
{{Glossary:Critical Raw Materials}}

|-
|<span id="CRT">CRT</span>
|
{{Glossary:CRT}}

|-
|<span id="Critical Raw Materials">Critical Raw Materials</span>
|
{{Glossary:Critical Raw Materials}}

|-
|<span id="Crystal">Crystal</span>
|
{{Glossary:Crystal}}

|-
|<span id="Crystal set">Crystal set</span>
|
{{Glossary:Crystal set}}

|-
|<span id="CSM">CSM</span>
|
{{Glossary:CSM}}

|-
|<span id="CUI">CUI</span>
|
{{Glossary:CUI}}

|-
|<span id="CT">CT</span>
|
{{Glossary:CT}}

|-
|<span id="Custom ROM">Custom ROM</span>
|
{{Glossary:Custom ROM}}

|-
| colspan="2" style="background-color: white;" | <span id="D">'''D'''</span>

|-
|<span id="D-subminiature">D-subminiature</span>
|
{{Glossary:D-subminiature}}

|-
|<span id="DAB">DAB</span>
|
{{Glossary:DAB}}

|-
|<span id="Daughter board">Daughter board</span>
|
{{Glossary:Daughter board}}

|-
|<span id="dB">dB</span>
|
{{Glossary:Decibel}}

|-
|<span id="DB-9">DB-9</span>
|
{{Glossary:D-subminiature}}

|-
|<span id="DB-25">DB-25</span>
|
{{Glossary:D-subminiature}}

|-
|<span id="DC">DC</span>
|
{{Glossary:DC}}

|-
|<span id="DCE">DCE</span>
|
{{Glossary:DTE, DCE}}

|-
|<span id="DDOS">DDOS</span>
|
{{Glossary:DDOS}}

|-
|<span id="DE-15">DE-15</span>
|
{{Glossary:D-subminiature}}

|-
|<span id="Debugging">Debugging</span>
|
{{Glossary:Debugging}}

|-
|<span id="Decibel">Decibel</span>
|
{{Glossary:Decibel}}

|-
|<span id="Decimal">Decimal</span>
|
{{Glossary:Decimal}}

|-
|<span id="Decoupling capacitor">Decoupling capacitor</span>
|
{{Glossary:Decoupling capacitor}}

|-
|<span id="Demodulation">Demodulation</span>
|
{{Glossary:Demodulation}}

|-
|<span id="Denial of Service">Denial of Service</span>
|
{{Glossary:Denial of Service}}

|-
|<span id="Desktop Manager">Desktop Manager</span>
|
{{Glossary:Desktop Manager}}

|-
|<span id="DIAC">DIAC</span>
|
{{Glossary:DIAC}}

|-
|<span id="Dielectric">Dielectric</span>
|
{{Glossary:Dielectric}}

|-
|<span id="Digital">Digital</span>
|
{{Glossary:Digital}}

|-
|<span id="Digital Certificate">Digital Certificate</span>
|
{{Glossary:Digital Certificate}}

|-
|<span id="Digital Signal Processor">Digital Signal Processor</span>
|
{{Glossary:Digital Signal Processor}}

|-
|<span id="DIL">DIL</span>
|
{{Glossary:DIL}}

|-
|<span id="DIMM">DIMM</span>
|
{{Glossary:DIMM}}

|-
|<span id="Diode">Diode</span>
|
{{Glossary:Diode}}

|-
|<span id="Dipole">Dipole</span>
|
{{Glossary:Dipole}}

|-
|<span id="DisplayPort">DisplayPort</span>
|
{{Glossary:DisplayPort}}

|-
|<span id="Distro">Distro</span>
|
{{Glossary:Distro}}

|-
|<span id="DLP">DLP</span>
|
{{Glossary:DLP}}

|-
|<span id="DMD">DMD</span>
|
{{Glossary:DMD}}

|-
|<span id="DMM">DMM</span>
|
{{Glossary:DMM}}

|-
|<span id="DNS">DNS</span>
|
{{Glossary:DNS}}

|-
|<span id="DOA">DOA</span>
|
{{Glossary:DOA}}

|-
|<span id="DOS">DOS</span>
|
{{Glossary:Denial of Service}}

|-
|<span id="DOS (Microsoft)">DOS (Microsoft)</span>
|
{{Glossary:MSDOS}}

|-
|<span id="Downcycling">Downcycling</span>
|
{{Glossary:Downcycling}}

|-
|<span id="DPDT">DPDT</span>
|
{{Glossary:DPDT}}

|-
|<span id="DPST">DPST</span>
|
{{Glossary:DPST}}

|-
|<span id="Drain">Drain</span>
|
{{Glossary:Source, Gate, Drain}}

|-
|<span id="DSP">DSP</span>
|
{{Glossary:Digital Signal Processor}}

|-
|<span id="DTE">DTE</span>
|
{{Glossary:DTE, DCE}}

|-
|<span id="Duplex">Duplex</span>
|
{{Glossary:Duplex}}

|-
|<span id="DUT">DUT</span>
|
{{Glossary:DUT}}

|-
|<span id="DVI">DVI</span>
|
{{Glossary:DVI}}

|-
|<span id="Dynamic microphone">Dynamic microphone</span>
|
{{Glossary:Dynamic microphone}}

|-
| colspan="2" style="background-color: white;" | <span id="E">'''E'''</span>

|-
|<span id="Earth">Earth</span>
|
{{Glossary:Earth}}

|-
|<span id="Earth Loop">Earth Loop</span>
|
{{Glossary:Ground Loop}}

|-
|<span id="E-Ink">E-Ink</span>
|
{{Glossary:E-Ink}}

|-
|<span id="E-Series">E-Series</span>
|
{{Glossary:E-Series}}

|-
|<span id="e-Waste">e-Waste</span>
|
{{Glossary:E-Waste}}

|-
|<span id="ECC">ECC</span>
|
{{Glossary:ECC}}

|-
|<span id="Ecodesign">Ecodesign</span>
|
{{Glossary:Ecodesign}}

|-
|<span id="EHT">EHT</span>
|
{{Glossary:EHT}}

|-
|<span id="Electret">Electret</span>
|
{{Glossary:Electret}}

|-
|<span id="Electret microphone">Electret microphone</span>
|
{{Glossary:Electret microphone}}

|-
|<span id="Electricity">Electricity</span>
|
{{Glossary:Electricity}}

|-
|<span id="Electrode">Electrode</span>
|
{{Glossary:Electrode}}

|-
|<span id="Electrolyte">Electrolyte</span>
|
{{Glossary:Electrolyte}}

|-
|<span id="Electrolytic Capacitor">Electrolytic Capacitor</span>
|
{{Glossary:Electrolytic Capacitor}}

|-
|<span id="Electromagnet">Electromagnet</span>
|
{{Glossary:Electromagnet}}

|-
|<span id="Electromagnetic Wave">Electromagnetic Wave</span>
|
{{Glossary:Electromagnetic Wave}}

|-
|<span id="Electron">Electron</span>
|
{{Glossary:Electron}}

|-
|<span id="Electronically Commutated Motor">Electronically Commutated Motor</span>
|
{{Glossary:Brushless Motor}}

|-
|<span id="Electronicals">Electronicals</span>
|
{{Glossary:Electronicals}}

|-
|<span id="Electrophoresis">Electrophoresis</span>
|
{{Glossary:Electrophoresis}}

|-
|<span id="EMF">EMF</span>
|
{{Glossary:EMF}}

|-
|<span id="Emitter">Emitter</span>
|
{{Glossary:Emitter, Base, Collector}}

|-
|<span id="Encryption">Encryption</span>
|
{{Glossary:Encryption}}

|-
|<span id="Endurance">Endurance</span>
|
{{Glossary:Endurance}}

|-
|<span id="Ensemble">Ensemble</span>
|
{{Glossary:Ensemble}}

|-
|<span id="Entropy">Entropy</span>
|
{{Glossary:Entropy}}

|-
|<span id="EoP">EoP</span>
|
{{Glossary:Privilege Escalation}}

|-
|<span id="Epoxy">Epoxy</span>
|
{{Glossary:Epoxy}}

|-
|<span id="ES">ES</span>
|
{{Glossary:ES}}

|-
|<span id="Escalation of Privilege">Escalation of Privilege</span>
|
{{Glossary:Privilege Escalation}}

|-
|<span id="ESD">ESD</span>
|
{{Glossary:ESD}}

|-
|<span id="ESP">ESP</span>
|
{{Glossary:ESP}}

|-
|<span id="Ethernet">Ethernet</span>
|
{{Glossary:Ethernet}}

|-
|<span id="EV">EV</span>
|
{{Glossary:EV}}

|-
| colspan="2" style="background-color: white;" | <span id="F">'''F'''</span>

|-
|<span id="Farad">Farad</span>
|
{{Glossary:Farad}}

|-
|<span id="FAT">FAT</span>
|
{{Glossary:FAT}}

|-
|<span id="Feature phone">Feature phone</span>
|
{{Glossary:Feature phone}}

|-
|<span id="Ferrite">Ferrite</span>
|
{{Glossary:Ferrite}}

|-
|<span id="Ferrite rod aerial">Ferrite rod aerial</span>
|
{{Glossary:Ferrite rod aerial}}

|-
|<span id="FET">FET</span>
|
{{Glossary:FET}}

|-
|<span id="FFC">FFC</span>
|
{{Glossary:FFC}}

|-
|<span id="Fibre Optics">Fibre Optics</span>
|
{{Glossary:Fibre Optics}}

|-
|<span id="Filament Lamp">Filament Lamp</span>
|
{{Glossary:Filament Lamp}}

|-
|<span id="Filing System">Filing System</span>
|
{{Glossary:Filing System}}

|-
|<span id="Firewall">Firewall</span>
|
{{Glossary:Firewall}}

|-
|<span id="Firewire">Firewire</span>
|
{{Glossary:Firewire}}

|-
|<span id="Firmware">Firmware</span>
|
{{Glossary:Firmware}}

|-
|<span id="Flash">Flash</span>
|
{{Glossary:Flash}}

|-
|<span id="Floating Point">Floating Point</span>
|
{{Glossary:Floating Point}}

|-
|<span id="Flux">Flux</span>
|
{{Glossary:Flux}}

|-
|<span id="FM">FM</span>
|
{{Glossary:FM}}

|-
|<span id="FPC">FPC</span>
|
{{Glossary:FPC}}

|-
|<span id="FPGA">FPGA</span>
|
{{Glossary:FPGA}}

|-
|<span id="Frequency">Frequency</span>
|
{{Glossary:Frequency}}

|-
|<span id="FTP">FTP</span>
|
{{Glossary:FTP}}

|-
|<span id="FTTC">FTTC</span>
|
{{Glossary:FTTC}}

|-
|<span id="FTTP">FTTP</span>
|
{{Glossary:FTTP}}

|-
|<span id="FUBAR">FUBAR</span>
|
{{Glossary:FUBAR}}

|-
|<span id="Full wave rectifier">Full wave rectifier</span>
|
{{Glossary:Full wave rectifier}}

|-
|<span id="Fuse">Fuse</span>
|
{{Glossary:Fuse}}

|-
| colspan="2" style="background-color: white;" | <span id="G">'''G'''</span>

|-
|<span id="Gallium">Gallium</span>
|
{{Glossary:Gallium}}

|-
|<span id="Garbage collection">Garbage collection</span>
|
{{Glossary:Garbage collection}}

|-
|<span id="Gate">Gate</span>
|
{{Glossary:Source, Gate, Drain}}

|-
|<span id="GB">GB</span>
|
{{Glossary:GB}}

|-
|<span id="Germanium">Germanium</span>
|
{{Glossary:Germanium}}

|-
|<span id="GHz">GHz</span>
|
{{Glossary:GHz}}

|-
|<span id="GiB">GiB</span>
|
{{Glossary:GiB}}

|-
|<span id="Gnat’s whisker">Gnat’s whisker</span>
|
{{Glossary:Gnats whisker}}

|-
|<span id="GNSS">GNSS</span>
|
{{Glossary:GNSS}}

|-
|<span id="GPS">GPS</span>
|
{{Glossary:GPS}}

|-
|<span id="GPT">GPT</span>
|
{{Glossary:GPT}}

|-
|<span id="Grid">Grid</span>
|
{{Glossary:Grid}}

|-
|<span id="Ground">Ground</span>
|
{{Glossary:Earth}}

|-
|<span id="Ground Loop">Ground Loop</span>
|
{{Glossary:Ground Loop}}

|-
|<span id="GUI">GUI</span>
|
{{Glossary:GUI}}

|-
|<span id="GUID">GUID</span>
|
{{Glossary:GUID}}

|-
| colspan="2" style="background-color: white;" | <span id="H">'''H'''</span>

|-
|<span id="Half wave rectifier">Half wave rectifier</span>
|
{{Glossary:Half wave rectifier}}

|-
|<span id="Hall Effect">Hall Effect</span>
|
{{Glossary:Hall Effect}}

|-
|<span id="Halogen Lamp">Halogen Lamp</span>
|
{{Glossary:Halogen Lamp}}

|-
|<span id="Haptics">Haptics</span>
|
{{Glossary:Haptics}}

|-
|<span id="Hard Disk">Hard Disk</span>
|
{{Glossary:Hard Disk}}

|-
|<span id="Hardware">Hardware</span>
|
{{Glossary:Hardware}}

|-
|<span id="HD">HD</span>
|
{{Glossary:Hard Disk}}

|-
|<span id="HDMI">HDMI</span>
|
{{Glossary:HDMI}}

|-
|<span id="Heat Sink">Heat Sink</span>
|
{{Glossary:Heat Sink}}

|-
|<span id="Henry">Henry</span>
|
{{Glossary:Henry}}

|-
|<span id="Hertz">Hertz</span>
|
{{Glossary:Hertz}}

|-
|<span id="Hexadecimal">Hexadecimal</span>
|
{{Glossary:Hexadecimal}}

|-
|<span id="Hole">Hole</span>
|
{{Glossary:Hole}}

|-
|<span id="Horology">Horology</span>
|
{{Glossary:Horology}}

|-
|<span id="HT">HT</span>
|
{{Glossary:HT}}

|-
|<span id="http/https">http/https</span>
|
{{Glossary:http/https}}

|-
|<span id="Hum">Hum</span>
|
{{Glossary:Hum}}

|-
|<span id="Hypervisor">Hypervisor</span>
|
{{Glossary:Hypervisor}}

|-
|<span id="Hz">Hz</span>
|
{{Glossary:Hertz}}

|-
| colspan="2" style="background-color: white;" | <span id="I">'''I'''</span>

|-
|<span id="I2C">I2C</span>
|
{{Glossary:I2C}}

|-
|<span id="I2S">I2S</span>
|
{{Glossary:I2S}}

|-
|<span id="IC">IC</span>
|
{{Glossary:Integrated Circuit}}

|-
|<span id="IF">IF</span>
|
{{Glossary:IF}}

|-
|<span id="IGBT">IGBT</span>
|
{{Glossary:IGBT}}

|-
|<span id="IMAP">IMAP</span>
|
{{Glossary:IMAP}}

|-
|<span id="Impedance">Impedance</span>
|
{{Glossary:Impedance}}

|-
|<span id="Incandescent Lamp">Incandescent Lamp</span>
|
{{Glossary:Filament Lamp}}

|-
|<span id="Inductance">Inductance</span>
|
{{Glossary:Inductance}}

|-
|<span id="Induction motor">Induction motor</span>
|
{{Glossary:Induction motor}}

|-
|<span id="Inductor">Inductor</span>
|
{{Glossary:Inductor}}

|-
|<span id="Inrush">Inrush</span>
|
{{Glossary:Inrush}}

|-
|<span id="Instruction set">Instruction set</span>
|
{{Glossary:Instruction set}}

|-
|<span id="Insulation displacement">Insulation displacement</span>
|
{{Glossary:Insulation displacement}}

|-
|<span id="Insulator">Insulator</span>
|
{{Glossary:Insulator}}

|-
|<span id="Integrated Circuit">Integrated Circuit</span>
|
{{Glossary:Integrated Circuit}}

|-
|<span id="Interface">Interface</span>
|
{{Glossary:Interface}}

|-
|<span id="International Octal">International Octal</span>
|
{{Glossary:International Octal}}

|-
|<span id="Internet">Internet</span>
|
{{Glossary:Internet}}

|-
|<span id="Internet of Things">Internet of Things</span>
|
{{Glossary:Internet of Things}}

|-
|<span id="Intranet">Intranet</span>
|
{{Glossary:Intranet}}

|-
|<span id="Ion">Ion</span>
|
{{Glossary:Ion}}

|-
|<span id="IoT">IoT</span>
|
{{Glossary:Internet of Things}}

|-
|<span id="IP">IP</span>
|
{{Glossary:IP}}

|-
|<span id="IPAddress">IPAddress</span>
|
{{Glossary:IPAddress}}

|-
|<span id="IPv4">IPv4</span>
|
{{Glossary:IPv4}}

|-
|<span id="IPv6">IPv6</span>
|
{{Glossary:IPv6}}

|-
|<span id="IrDA">IrDA</span>
|
{{Glossary:IrDA}}

|-
|<span id="ISO">ISO</span>
|
{{Glossary:ISO}}

|-
|<span id="IT">IT</span>
|
{{Glossary:IT}}

|-
| colspan="2" style="background-color: white;" | <span id="J">'''J'''</span>

|-
|<span id="Jack">Jack</span>
|
{{Glossary:Jack}}

|-
|<span id="jFET">jFET</span>
|
{{Glossary:jFET}}

|-
|<span id="JIS">JIS</span>
|
{{Glossary:JIS}}

|-
|<span id="Joule">Joule</span>
|
{{Glossary:Joule}}

|-
|<span id="Junction Transistor">Junction Transistor</span>
|
{{Glossary:Junction Transistor}}

|-
| colspan="2" style="background-color: white;" | <span id="K">'''K'''</span>

|-
|<span id="Kapton">Kapton</span>
|
{{Glossary:Kapton}}

|-
|<span id="kB">kB</span>
|
{{Glossary:kB}}

|-
|<span id="Kernel">Kernel</span>
|
{{Glossary:Kernel}}

|-
|<span id="Keylogger">Keylogger</span>
|
{{Glossary:Keylogger}}

|-
|<span id="kHz">kHz</span>
|
{{Glossary:kHz}}

|-
|<span id="Kirchoff's Laws">Kirchoff's Laws</span>
|
{{Glossary:Kirchoff's Laws}}

|-
| colspan="2" style="background-color: white;" | <span id="L">'''L'''</span>

|-
|<span id="Ladder logic">Ladder logic</span>
|
{{Glossary:Ladder logic}}

|-
|<span id="LAN">LAN</span>
|
{{Glossary:LAN}}

|-
|<span id="LCD">LCD</span>
|
{{Glossary:LCD}}

|-
|<span id="LDO">LDO</span>
|
{{Glossary:LDO}}

|-
|<span id="LDR">LDR</span>
|
{{Glossary:LDR}}

|-
|<span id="LED">LED</span>
|
{{Glossary:LED}}

|-
|<span id="LIDAR">LIDAR</span>
|
{{Glossary:LIDAR}}

|-
|<span id="Lightning (connector)">Lightning (connector)</span>
|
{{Glossary:Lightning (connector)}}

|-
|<span id="Linear Regulator">Linear Regulator</span>
|
{{Glossary:Linear Regulator}}

|-
|<span id="Linux">Linux</span>
|
{{Glossary:Linux}}

|-
|<span id="Live Linux">Live Linux</span>
|
{{Glossary:Live Linux}}

|-
|<span id="Li-ion">Li-ion</span>
|
{{Glossary:Li-ion}}

|-
|<span id="Li-polymer">Li-polymer</span>
|
{{Glossary:Li-ion}}

|-
|<span id="Load cell">Load cell</span>
|
{{Glossary:Load cell}}

|-
|<span id="Loupe">Loupe</span>
|
{{Glossary:Loupe}}

|-
|<span id="LT">LT</span>
|
{{Glossary:LT}}

|-
|<span id="Luminance">Luminance</span>
|
{{Glossary:Luminance}}

|-
| colspan="2" style="background-color: white;" | <span id="M">'''M'''</span>

|-
|<span id="M.2">M.2</span>
|
{{Glossary:M.2}}

|-
|<span id="Magnetic induction">Magnetic induction</span>
|
{{Glossary:Magnetic induction}}

|-
|<span id="Magnetic Reluctance">Magnetic Reluctance</span>
|
{{Glossary:Magnetic Reluctance}}

|-
|<span id="Magnetron">Magnetron</span>
|
{{Glossary:Magnetron}}

|-
|<span id="Malware">Malware</span>
|
{{Glossary:Malware}}

|-
|<span id="MB">MB</span>
|
{{Glossary:MB}}

|-
|<span id="MBR">MBR</span>
|
{{Glossary:MBR}}

|-
|<span id="MCU">MCU</span>
|
{{Glossary:Microcontroller}}

|-
|<span id="Microprocessor">Microprocessor</span>
|
{{Glossary:Microprocessor}}

|-
|<span id="Memory effect">Memory effect</span>
|
{{Glossary:Memory effect}}

|-
|<span id="Memory leak">Memory leak</span>
|
{{Glossary:Memory leak}}

|-
|<span id="MEMS">MEMS</span>
|
{{Glossary:MEMS}}

|-
|<span id="Metadata">Metadata</span>
|
{{Glossary:Metadata}}

|-
|<span id="Metal Halide Lamp">Metal Halide Lamp</span>
|
{{Glossary:Metal Halide Lamp}}

|-
|<span id="MFA">MFA</span>
|
{{Glossary:Two Factor Authentication}}

|-
|<span id="MHz">MHz</span>
|
{{Glossary:MHz}}

|-
|<span id="MiB">MiB</span>
|
{{Glossary:MiB}}

|-
|<span id="Microcontroller">Microcontroller</span>
|
{{Glossary:Microcontroller}}

|-
|<span id="MicroSATA">MicroSATA</span>
|
{{Glossary:MicroSATA}}

|-
|<span id="Microswitch">Microswitch</span>
|
{{Glossary:Microswitch}}

|-
|<span id="MiniSATA">MiniSATA</span>
|
{{Glossary:MiniSATA}}

|-
|<span id="Modem">Modem</span>
|
{{Glossary:Modem}}

|-
|<span id="Modulation">Modulation</span>
|
{{Glossary:Modulation}}

|-
|<span id="MOSFET">MOSFET</span>
|
{{Glossary:MOSFET}}

|-
|<span id="Motherboard">Motherboard</span>
|
{{Glossary:Motherboard}}

|-
|<span id="MOV">MOV</span>
|
{{Glossary:MOV}}

|-
|<span id="MPP inverter">MPP inverter</span>
|
{{Glossary:MPP inverter}}

|-
|<span id="MPU">MPU</span>
|
{{Glossary:Microprocessor}}

|-
|<span id="mSATA">mSATA</span>
|
{{Glossary:MiniSATA}}

|-
|<span id="MSDOS">MSDOS</span>
|
{{Glossary:MSDOS}}

|-
|<span id="MTBF">MTBF</span>
|
{{Glossary:MTBF}}

|-
|<span id="Multimeter">Multimeter</span>
|
{{Glossary:Multimeter}}

|-
|<span id="Murphy's Law">Murphy's Law</span>
|
{{Glossary:Murphy's Law}}

|-
| colspan="2" style="background-color: white;" | <span id="N">'''N'''</span>

|-
|<span id="N-type">N-type</span>
|
{{Glossary:N-type}}

|-
|<span id="Neon">Neon</span>
|
{{Glossary:Neon}}

|-
|<span id="NFC">NFC</span>
|
{{Glossary:NFC}}

|-
|<span id="NIC">NIC</span>
|
{{Glossary:NIC}}

|-
|<span id="NiCd">NiCd</span>
|
{{Glossary:NiCd}}

|-
|<span id="NiMH">NiMH</span>
|
{{Glossary:NiMH}}

|-
|<span id="Noise">Noise</span>
|
{{Glossary:Noise}}

|-
|<span id="NPN">NPN</span>
|
{{Glossary:NPN}}

|-
|<span id="NTC Resistor">NTC Resistor</span>
|
{{Glossary:NTC Resistor}}

|-
|<span id="NVMe">NVMe</span>
|
{{Glossary:NVMe}}

|-
| colspan="2" style="background-color: white;" | <span id="O">'''O'''</span>

|-
|<span id="Object Code">Object Code</span>
|
{{Glossary:Object Code}}

|-
|<span id="Octal">Octal</span>
|
{{Glossary:Octal}}

|-
|<span id="Octet">Octet</span>
|
{{Glossary:Byte}}

|-
|<span id="OEM">OEM</span>
|
{{Glossary:OEM}}

|-
|<span id="Ohm">Ohm</span>
|
{{Glossary:Ohm}}

|-
|<span id="Ohm's Law">Ohm's Law</span>
|
{{Glossary:Ohm's Law}}

|-
|<span id="OLED">OLED</span>
|
{{Glossary:OLED}}

|-
|<span id="Open Circuit">Open Circuit</span>
|
{{Glossary:Open Circuit}}

|-
|<span id="Open Source">Open Source</span>
|
{{Glossary:Open Source}}

|-
|<span id="Operating System">Operating System</span>
|
{{Glossary:Operating System}}

|-
|<span id="Operational Amplifier">Operational Amplifier</span>
|
{{Glossary:Operational Amplifier}}

|-
|<span id="Opto coupler">Opto coupler</span>
|
{{Glossary:Opto coupler}}

|-
|<span id="Oscillator">Oscillator</span>
|
{{Glossary:Oscillator}}

|-
|<span id="Oscilloscope">Oscilloscope</span>
|
{{Glossary:Oscilloscope}}

|-
|<span id="Own">Own</span>
|
{{Glossary:Own}}

|-
| colspan="2" style="background-color: white;" | <span id="P">'''P'''</span>

|-
|<span id="P-type">P-type</span>
|
{{Glossary:P-type}}

|-
|<span id="PAN">PAN</span>
|
{{Glossary:PAN}}

|-
|<span id="Parallel">Parallel</span>
|
{{Glossary:Parallel}}

|-
|<span id="Parallel Interface">Parallel Interface</span>
|
{{Glossary:Parallel Interface}}

|-
|<span id="Partition">Partition</span>
|
{{Glossary:Partition}}

|-
|<span id="Parts pairing">Parts pairing</span>
|
{{Glossary:Parts pairing}}

|-
|<span id="Passkey">Passkey</span>
|
{{Glossary:Passkey}}

|-
|<span id="Password Manager">Password Manager</span>
|
{{Glossary:Password Manager}}

|-
|<span id="Password spraying">Password spraying</span>
|
{{Glossary:Password spraying}}

|-
|<span id="PAT Test">PAT Test</span>
|
{{Glossary:PAT Test}}

|-
|<span id="PATA">PATA</span>
|
{{Glossary:PATA}}

|-
|<span id="PCB">PCB</span>
|
{{Glossary:PCB}}

|-
|<span id="PCI">PCI</span>
|
{{Glossary:PCI}}

|-
|<span id="PCIe">PCIe</span>
|
{{Glossary:PCIe}}

|-
|<span id="PD">PD</span>
|
{{Glossary:PD}}

|-
|<span id="PEBKAC">PEBKAC</span>
|
{{Glossary:PEBKAC}}

|-
|<span id="Peltier">Peltier</span>
|
{{Glossary:Peltier}}

|-
|<span id="Pentalobe">Pentalobe</span>
|
{{Glossary:Pentalobe}}

|-
|<span id="Pentode">Pentode</span>
|
{{Glossary:Pentode}}

|-
|<span id="Percussive maintenance">Percussive maintenance</span>
|
{{Glossary:Percussive maintenance}}

|-
|<span id="Peripheral">Peripheral</span>
|
{{Glossary:Peripheral}}

|-
|<span id="PGA">PGA</span>
|
{{Glossary:PGA}}

|-
|<span id="Phase-locked loop">Phase-locked loop</span>
|
{{Glossary:PLL}}

|-
|<span id="Phillips">Phillips</span>
|
{{Glossary:Phillips}}

|-
|<span id="Phishing">Phishing</span>
|
{{Glossary:Phishing}}

|-
|<span id="Phono plug">Phono plug</span>
|
{{Glossary:Phono plug}}

|-
|<span id="Photon">Photon</span>
|
{{Glossary:Photon}}

|-
|<span id="Phototransistor">Phototransistor</span>
|
{{Glossary:Phototransistor}}

|-
|<span id="Piezo">Piezo</span>
|
{{Glossary:Piezo}}

|-
|<span id="Pig butchering scam">Pig butchering scam</span>
|
{{Glossary:Pig butchering scam}}

|-
|<span id="Pin">Pin</span>
|
{{Glossary:Pin}}

|-
|<span id="Pinout">Pinout</span>
|
{{Glossary:Pinout}}

|-
|<span id="PIR">PIR</span>
|
{{Glossary:PIR}}

|-
|<span id="Pixel">Pixel</span>
|
{{Glossary:Pixel}}

|-
|<span id="PLC">PLC</span>
|
{{Glossary:PLC}}

|-
|<span id="PLL">PLL</span>
|
{{Glossary:PLL}}

|-
|<span id="PNP">PNP</span>
|
{{Glossary:PNP}}

|-
|<span id="Polyfuse">Polyfuse</span>
|
{{Glossary:Polyfuse}}

|-
|<span id="POP3">POP3</span>
|
{{Glossary:POP3}}

|-
|<span id="Port">Port</span>
|
{{Glossary:Port}}

|-
|<span id="Pot">Pot</span>
|
{{Glossary:Potentiometer}}

|-
|<span id="Potentiometer">Potentiometer</span>
|
{{Glossary:Potentiometer}}

|-
|<span id="POTS">POTS</span>
|
{{Glossary:POTS}}

|-
|<span id="Power Supply">Power Supply</span>
|
{{Glossary:Power Supply}}

|-
|<span id="Pozidriv">Pozidriv</span>
|
{{Glossary:Pozidriv}}

|-
|<span id="PPE">PPE</span>
|
{{Glossary:PPE}}

|-
|<span id="PPTC">PPTC</span>
|
{{Glossary:Polyfuse}}

|-
|<span id="Primary Battery">Primary Battery</span>
|
{{Glossary:Primary Battery}}

|-
|<span id="PrivEsc">PrivEsc</span>
|
{{Glossary:Privilege Escalation}}

|-
|<span id="Privilege Escalation">Privilege Escalation</span>
|
{{Glossary:Privilege Escalation}}

|-
|<span id="Protocol">Protocol</span>
|
{{Glossary:Protocol}}

|-
|<span id="PSTN">PSTN</span>
|
{{Glossary:PSTN}}

|-
|<span id="PSU">PSU</span>
|
{{Glossary:Power Supply}}

|-
|<span id="Public key cryptography">Public key cryptography</span>
|
{{Glossary:Public key cryptography}}

|-
|<span id="Pulse Width Modulation">Pulse Width Modulation</span>
|
{{Glossary:PWM}}

|-
|<span id="PUP">PUP</span>
|
{{Glossary:PUP}}

|-
|<span id="PV Cell">PV Cell</span>
|
{{Glossary:PV Cell}}

|-
|<span id="PWM">PWM</span>
|
{{Glossary:PWM}}

|-
|<span id="Pwn">Pwn</span>
|
{{Glossary:Pwn}}

|-
| colspan="2" style="background-color: white;" | <span id="Q">'''Q'''</span>

|-
|<span id="Q factor">Q factor</span>
|
{{Glossary:Q factor}}

|-
|<span id="Quantum Computer">Quantum Computer</span>
|
{{Glossary:Quantum Computer}}

|-
|<span id="Quantum Mechanics">Quantum Mechanics</span>
|
{{Glossary:Quantum Mechanics}}

|-
|<span id="Quartz crystal">Quartz crystal</span>
|
{{Glossary:Quartz crystal}}

|-
|<span id="Qubit">Qubit</span>
|
{{Glossary:Qubit}}

|-
| colspan="2" style="background-color: white;" | <span id="R">'''R'''</span>

|-
|<span id="R2R">R2R</span>
|
{{Glossary:Right to Repair}}

|-
|<span id="RAM">RAM</span>
|
{{Glossary:RAM}}

|-
|<span id="Ransomware">Ransomware</span>
|
{{Glossary:Ransomware}}

|-
|<span id="RAT">RAT</span>
|
{{Glossary:RAT}}

|-
|<span id="Razor-and-blades business model">Razor-and-blades business model</span>
|
{{Glossary:Razor-and-blades business model}}

|-
|<span id="RCA plug">RCA plug</span>
|
{{Glossary:Phono plug}}

|-
|<span id="RCE">RCE</span>
|
{{Glossary:Remote Code Execution}}

|-
|<span id="Rectifier">Rectifier</span>
|
{{Glossary:Rectifier}}

|-
|<span id="Recycling">Recycling</span>
|
{{Glossary:Recycling}}

|-
|<span id="Reed switch">Reed switch</span>
|
{{Glossary:Reed switch}}

|-
|<span id="Refurbishment">Refurbishment</span>
|
{{Glossary:Refurbishment}}

|-
|<span id="Relay">Relay</span>
|
{{Glossary:Relay}}

|-
|<span id="Reluctance">Reluctance</span>
|
{{Glossary:Magnetic Reluctance}}

|-
|<span id="Reluctance motor">Reluctance motor</span>
|
{{Glossary:Reluctance motor}}

|-
|<span id="Remanufacture">Remanufacture</span>
|
{{Glossary:Remanufacture}}

|-
|<span id="Remote Code Execution">Remote Code Execution</span>
|
{{Glossary:Remote Code Execution}}

|-
|<span id="Repair">Repair</span>
|
{{Glossary:Repair}}

|-
|<span id="Repair Café">Repair Café</span>
|
{{Glossary:Repair Café}}

|-
|<span id="Reservoir Capacitor">Reservoir Capacitor</span>
|
{{Glossary:Reservoir Capacitor}}

|-
|<span id="Resistance">Resistance</span>
|
{{Glossary:Resistance}}

|-
|<span id="Resistor">Resistor</span>
|
{{Glossary:Resistor}}

|-
|<span id="Restart Project">Restart Project</span>
|
{{Glossary:Restart Project}}

|-
|<span id="Reuse">Reuse</span>
|
{{Glossary:Reuse}}

|-
|<span id="Reverse defenestration">Reverse defenestration</span>
|
{{Glossary:Reverse defenestration}}

|-
|<span id="RF">RF</span>
|
{{Glossary:RF}}

|-
|<span id="RFID">RFID</span>
|
{{Glossary:RFID}}

|-
|<span id="RGB">RGB</span>
|
{{Glossary:RGB}}

|-
|<span id="Ribbon cable">Ribbon cable</span>
|
{{Glossary:Ribbon cable}}

|-
|<span id="Right to Repair">Right to Repair</span>
|
{{Glossary:Right to Repair}}

|-
|<span id="Ripple">Ripple</span>
|
{{Glossary:Ripple}}

|-
|<span id="RISC">RISC</span>
|
{{Glossary:RISC}}

|-
|<span id="RISC">RISC</span>
|
{{Glossary:RISC}}

|-
|<span id="RISC-V">RISC-V</span>
|
{{Glossary:RISC-V}}

|-
|<span id="RJ11">RJ11</span>
|
{{Glossary:RJ11}}

|-
|<span id="RJ45">RJ45</span>
|
{{Glossary:RJ45}}

|-
|<span id="RMS">RMS</span>
|
{{Glossary:RMS}}

|-
|<span id="RoHS">RoHS</span>
|
{{Glossary:RoHS}}

|-
|<span id="ROM">ROM</span>
|
{{Glossary:ROM}}

|-
|<span id="Robertson">Robertson</span>
|
{{Glossary:Robertson}}

|-
|<span id="Rootkit">Rootkit</span>
|
{{Glossary:Rootkit}}

|-
|<span id="Rotary encoder">Rotary encoder</span>
|
{{Glossary:Rotary encoder}}

|-
|<span id="Rotor">Rotor</span>
|
{{Glossary:Rotor}}

|-
|<span id="Router">Router</span>
|
{{Glossary:Router}}

|-
|<span id="RS-232">RS-232</span>
|
{{Glossary:RS-232}}

|-
|<span id="RTFM">RTFM</span>
|
{{Glossary:RTFM}}

|-
| colspan="2" style="background-color: white;" | <span id="S">'''S'''</span>

|-
|<span id="S/N Ratio">S/N Ratio</span>
|
{{Glossary:Signal to Noise Ratio}}

|-
|<span id="S/PDIF">S/PDIF</span>
|
{{Glossary:S/PDIF}}

|-
|<span id="Sandbox">Sandbox</span>
|
{{Glossary:Sandbox}}

|-
|<span id="SATA">SATA</span>
|
{{Glossary:SATA}}

|-
|<span id="Saturation (colour)">Saturation (colour)</span>
|
{{Glossary:Saturation (colour)}}

|-
|<span id="Saturation (magnetic)">Saturation (magnetic)</span>
|
{{Glossary:Saturation (magnetic)}}

|-
|<span id="Saturation (transistor)">Saturation (transistor)</span>
|
{{Glossary:Saturation (transistor)}}

|-
|<span id="Schematic">Schematic</span>
|
{{Glossary:Schematic}}

|-
|<span id="Scope">Scope</span>
|
{{Glossary:Oscilloscope}}

|-
|<span id="SCR">SCR</span>
|
{{Glossary:Thyristor}}

|-
|<span id="SDR">SDR</span>
|
{{Glossary:SDR}}

|-
|<span id="Secondary Battery">Secondary Battery</span>
|
{{Glossary:Secondary Battery}}

|-
|<span id="Sector">Sector</span>
|
{{Glossary:Sector}}

|-
|<span id="Seebeck">Seebeck</span>
|
{{Glossary:Seebeck}}

|-
|<span id="Semiconductor">Semiconductor</span>
|
{{Glossary:Semiconductor}}

|-
|<span id="Serialisation">Serialisation</span>
|
{{Glossary:Parts pairing}}

|-
|<span id="Serial Interface">Serial Interface</span>
|
{{Glossary:Serial Interface}}

|-
|<span id="Series">Series</span>
|
{{Glossary:Series}}

|-
|<span id="Server">Server</span>
|
{{Glossary:Server}}

|-
|<span id="SES">SES</span>
|
{{Glossary:SES}}

|-
|<span id="Shell">Shell</span>
|
{{Glossary:Shell}}

|-
|<span id="Short circuit">Short circuit</span>
|
{{Glossary:Short circuit}}

|-
|<span id="Shottky diode">Shottky diode</span>
|
{{Glossary:Shottky diode}}

|-
|<span id="SiC">SiC</span>
|
{{Glossary:Silicon Carbide}}

|-
|<span id="Sicilian screwdriver">Sicilian screwdriver</span>
|
{{Glossary:Sicilian screwdriver}}

|-
|<span id="SIDAC">SIDAC</span>
|
{{Glossary:SIDAC}}

|-
|<span id="Side channel attack">Side channel attack</span>
|
{{Glossary:Side channel attack}}

|-
|<span id="Signal to Noise Ratio">Signal to Noise Ratio</span>
|
{{Glossary:Signal to Noise Ratio}}

|-
|<span id="Silicon">Silicon</span>
|
{{Glossary:Silicon}}

|-
|<span id="Silicon Carbide">Silicon Carbide</span>
|
{{Glossary:Silicon Carbide}}

|-
|<span id="SIL">SIL</span>
|
{{Glossary:SIL}}

|-
|<span id="SIM swap">SIM swap</span>
|
{{Glossary:SIM swap}}

|-
|<span id="Simplex">Simplex</span>
|
{{Glossary:Simplex}}

|-
|<span id="Sine wave">Sine wave</span>
|
{{Glossary:Sine wave}}

|-
|<span id="S.M.A.R.T">S.M.A.R.T</span>
|
{{Glossary:S.M.A.R.T}}

|-
|<span id="Smartphone">Smartphone</span>
|
{{Glossary:Smartphone}}

|-
|<span id="SMD">SMD</span>
|
{{Glossary:SMD}}

|-
|<span id="Smidgeon">Smidgeon</span>
|
{{Glossary:Smidgeon}}

|-
|<span id="Smoothing">Smoothing</span>
|
{{Glossary:Smoothing}}

|-
|<span id="SMPS">SMPS</span>
|
{{Glossary:SMPS}}

|-
|<span id="SMR">SMR</span>
|
{{Glossary:SMR}}

|-
|<span id="SMTP">SMTP</span>
|
{{Glossary:SMTP}}

|-
|<span id="SNAFU">SNAFU</span>
|
{{Glossary:SNAFU}}

|-
|<span id="Snubber">Snubber</span>
|
{{Glossary:Snubber}}

|-
|<span id="Soak test">Soak test</span>
|
{{Glossary:Soak test}}

|-
|<span id="SoC">SoC</span>
|
{{Glossary:SoC}}

|-
|<span id="Sod's Law">Sod's Law</span>
|
{{Glossary:Murphy's Law}}

|-
|<span id="SODIMM">SODIMM</span>
|
{{Glossary:SODIMM}}

|-
|<span id="Software">Software</span>
|
{{Glossary:Software}}

|-
|<span id="Software Defined Radio">Software Defined Radio</span>
|
{{Glossary:SDR}}

|-
|<span id="SOGEA">SOGEA</span>
|
{{Glossary:SOGEA}}

|-
|<span id="SOHO">SOHO</span>
|
{{Glossary:SOHO}}

|-
|<span id="SOIC">SOIC</span>
|
{{Glossary:SOIC_SOP}}

|-
|<span id="Solar Cell">Solar Cell</span>
|
{{Glossary:PV Cell}}

|-
|<span id="Solder">Solder</span>
|
{{Glossary:Solder}}

|-
|<span id="Solenoid">Solenoid</span>
|
{{Glossary:Solenoid}}

|-
|<span id="Solid State Disk">Solid State Disk</span>
|
{{Glossary:Solid State Disk}}

|-
|<span id="SOP">SOP</span>
|
{{Glossary:SOIC_SOP}}

|-
|<span id="SOT">SOT</span>
|
{{Glossary:SOT}}

|-
|<span id="Source">Source</span>
|
{{Glossary:Source, Gate, Drain}}

|-
|<span id="Source Code">Source Code</span>
|
{{Glossary:Source Code}}

|-
|<span id="Spam">Spam</span>
|
{{Glossary:Spam}}

|-
|<span id="Speculative execution">Speculative execution</span>
|
{{Glossary:Speculative execution}}

|-
|<span id="Spear Phishing">Spear Phishing</span>
|
{{Glossary:Spear Phishing}}

|-
|<span id="SPDT">SPDT</span>
|
{{Glossary:SPDT}}

|-
|<span id="SPI">SPI</span>
|
{{Glossary:SPI}}

|-
|<span id="SPST">SPST</span>
|
{{Glossary:SPST}}

|-
|<span id="Spudger">Spudger</span>
|
{{Glossary:Spudger}}

|-
|<span id="Spyware">Spyware</span>
|
{{Glossary:Spyware}}

|-
|<span id="SSD">SSD</span>
|
{{Glossary:Solid State Disk}}

|-
|<span id="SSL">SSL</span>
|
{{Glossary:SSL}}

|-
|<span id="Stator">Stator</span>
|
{{Glossary:Stator}}

|-
|<span id="Stepper Motor">Stepper Motor</span>
|
{{Glossary:Stepper Motor}}

|-
|<span id="Superhet">Superhet</span>
|
{{Glossary:Superhet}}

|-
|<span id="Supply chain attack">Supply chain attack</span>
|
{{Glossary:Supply chain attack}}

|-
|<span id="Surface Mount">Surface Mount</span>
|
{{Glossary:Surface Mount}}

|-
|<span id="SWG">SWG</span>
|
{{Glossary:SWG}}

|-
|<span id="Switch-mode Regulator">Switch-mode Regulator</span>
|
{{Glossary:Switch-mode Regulator}}

|-
|<span id="Symmetric cryptography">Symmetric cryptography</span>
|
{{Glossary:Symmetric cryptography}}

|-
|<span id="Synchronous motor">Synchronous motor</span>
|
{{Glossary:Synchronous motor}}

|-
| colspan="2" style="background-color: white;" | <span id="T">'''T'''</span>

|-
|<span id="Tad">Tad</span>
|
{{Glossary:Tad}}

|-
|<span id="TB">TB</span>
|
{{Glossary:TB}}

|-
|<span id="TCON">TCON</span>
|
{{Glossary:TCON}}

|-
|<span id="TCP">TCP</span>
|
{{Glossary:TCP}}

|-
|<span id="TCXO">TCXO</span>
|
{{Glossary:TCXO}}

|-
|<span id="THD">THD</span>
|
{{Glossary:THD}}

|-
|<span id="Thermal Cut-out">Thermal Cut-out</span>
|
{{Glossary:Thermal_Fuse}}

|-
|<span id="Thermal Fuse">Thermal Fuse</span>
|
{{Glossary:Thermal_Fuse}}

|-
|<span id="Thermal Paste">Thermal Paste</span>
|
{{Glossary:Thermal Paste}}

|-
|<span id="Thermal Runaway">Thermal Runaway</span>
|
{{Glossary:Thermal Runaway}}

|-
|<span id="Thermionic Valve">Thermionic Valve</span>
|
{{Glossary:Valve}}

|-
|<span id="Thermistor">Thermistor</span>
|
{{Glossary:Thermistor}}

|-
|<span id="Three Phase">Three Phase</span>
|
{{Glossary:3 Phase}}

|-
|<span id="Through-hole">Through-hole</span>
|
{{Glossary:Through-hole}}

|-
|<span id="Thunderbolt">Thunderbolt</span>
|
{{Glossary:Thunderbolt}}

|-
|<span id="Thyristor">Thyristor</span>
|
{{Glossary:Thyristor}}

|-
|<span id="TiB">TiB</span>
|
{{Glossary:TiB}}

|-
|<span id="TLS">TLS</span>
|
{{Glossary:TLS}}

|-
|<span id="Tolerance">Tolerance</span>
|
{{Glossary:Tolerance}}

|-
|<span id="TOR">TOR</span>
|
{{Glossary:TOR}}

|-
|<span id="Torque">Torque</span>
|
{{Glossary:Torque}}

|-
|<span id="Torx">Torx</span>
|
{{Glossary:Torx}}

|-
|<span id="TOSLINK">TOSLINK</span>
|
{{Glossary:TOSLINK}}

|-
|<span id="Transducer">Transducer</span>
|
{{Glossary:Transducer}}

|-
|<span id="Transformer">Transformer</span>
|
{{Glossary:Transformer}}

|-
|<span id="Transistor">Transistor</span>
|
{{Glossary:Transistor}}

|-
|<span id="Tri-wing">Tri-wing</span>
|
{{Glossary:Tri-wing}}

|-
|<span id="Triac">Triac</span>
|
{{Glossary:Triac}}

|-
|<span id="TRF">TRF</span>
|
{{Glossary:TRF}}

|-
|<span id="TRIM">TRIM</span>
|
{{Glossary:TRIM}}

|-
|<span id="Trimpot">Trimpot</span>
|
{{Glossary:Trimpot}}

|-
|<span id="Triode">Triode</span>
|
{{Glossary:Triode}}

|-
|<span id="Trojan">Trojan</span>
|
{{Glossary:Trojan}}

|-
|<span id="Tuned Circuit">Tuned Circuit</span>
|
{{Glossary:Tuned Circuit}}

|-
|<span id="Two Factor Authentication">Two Factor Authentication</span>
|
{{Glossary:Two Factor Authentication}}

|-
|<span id="Two Step Authentication">Two Step Authentication</span>
|
{{Glossary:Two Step Authentication}}

|-
| colspan="2" style="background-color: white;" | <span id="U">'''U'''</span>

|-
|<span id="UART/USART">UART/USART</span>
|
{{Glossary:UART/USART}}

|-
|<span id="UDP">UDP</span>
|
{{Glossary:UDP}}

|-
|<span id="USB">USB</span>
|
{{Glossary:USB}}

|-
|<span id="UEFI">UEFI</span>
|
{{Glossary:UEFI}}

|-
|<span id="Unbrick">Unbrick</span>
|
{{Glossary:Unbrick}}

|-
|<span id="Unicode">Unicode</span>
|
{{Glossary:Unicode}}

|-
|<span id="Universal Motor">Universal Motor</span>
|
{{Glossary:Universal Motor}}

|-
|<span id="Upcycling">Upcycling</span>
|
{{Glossary:Upcycling}}

|-
|<span id="UPS">UPS</span>
|
{{Glossary:UPS}}

|-
| colspan="2" style="background-color: white;" | <span id="V">'''V'''</span>

|-
|<span id="Vacuum Tube">Vacuum Tube</span>
|
{{Glossary:Valve}}

|-
|<span id="Valve">Valve</span>
|
{{Glossary:Valve}}

|-
|<span id="Varicap diode">Varicap diode</span>
|
{{Glossary:Varicap diode}}

|-
|<span id="Varistor">Varistor</span>
|
{{Glossary:Varistor}}

|-
|<span id="VDR">VDR</span>
|
{{Glossary:Varistor}}

|-
|<span id="VGA">VGA</span>
|
{{Glossary:VGA}}

|-
|<span id="Virtual Machine">Virtual Machine</span>
|
{{Glossary:Virtual Machine}}

|-
|<span id="Virus">Virus</span>
|
{{Glossary:Virus}}

|-
|<span id="VM">VM</span>
|
{{Glossary:Virtual Machine}}

|-
|<span id="VoIP">VoIP</span>
|
{{Glossary:VoIP}}

|-
|<span id="Volt">Volt</span>
|
{{Glossary:Volt}}

|-
|<span id="Voltage Regulator">Voltage Regulator</span>
|
{{Glossary:Voltage Regulator}}

|-
|<span id="Vulnerability">Vulnerability</span>
|
{{Glossary:Vulnerability}}

|-
|<span id="VSWR">VSWR</span>
|
{{Glossary:VSWR}}

|-
| colspan="2" style="background-color: white;" | <span id="W">'''W'''</span>

|-
|<span id="WAF">WAF</span>
|
{{Glossary:WAF}}

|-
|<span id="Wall cube">Wall cube</span>
|
{{Glossary:Wall cube}}

|-
|<span id="Wall wart">Wall wart</span>
|
{{Glossary:Wall cube}}

|-
|<span id="WAN">WAN</span>
|
{{Glossary:WAN}}

|-
|<span id="Watering hole attack">Watering hole attack</span>
|
{{Glossary:Watering hole attack}}

|-
|<span id="Watt">Watt</span>
|
{{Glossary:Watt}}

|-
|<span id="Waveguide">Waveguide</span>
|
{{Glossary:Waveguide}}

|-
|<span id="Wavelength">Wavelength</span>
|
{{Glossary:Wavelength}}

|-
|<span id="Webmail">Webmail</span>
|
{{Glossary:Webmail}}

|-
|<span id="WEEE">WEEE</span>
|
{{Glossary:WEEE}}

|-
|<span id="WiFi">WiFi</span>
|
{{Glossary:WiFi}}

|-
|<span id="Worm">Worm</span>
|
{{Glossary:Worm}}

|-
| colspan="2" style="background-color: white;" | <span id="X">'''X'''</span>

|-
|<span id="X.509">X.509</span>
|
{{Glossary:X.509}}

|-
|<span id="x86">x86</span>
|
{{Glossary:x86}}

|-
|<span id="XP">XP</span>
|
{{Glossary:XP}}

|-
| colspan="2" style="background-color: white;" | <span id="Y">'''Y'''</span>

|-
|<span id="Yagi">Yagi</span>
|
{{Glossary:Yagi}}

|-
| colspan="2" style="background-color: white;" | <span id="Z">'''Z'''</span>

|-
|<span id="Zener diode">Zener diode</span>
|
{{Glossary:Zener diode}}

|-
|<span id="Zero Day">Zero Day</span>
|
{{Glossary:Zero Day}}

|-
|<span id="ZIF Connector">ZIF Connector</span>
|
{{Glossary:ZIF Connector}}

|}

[[Category:General]]