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26 March 2024

21 March 2024

20 March 2024

14 March 2024

7 March 2024

6 March 2024

28 February 2024

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19 February 2024

  • 21:4121:41, 19 February 2024 diff hist +62‎ Glossary ‎ →‎Glossary of Terms
  • 21:3921:39, 19 February 2024 diff hist +438‎ N Glossary:Entropy ‎ Created page with "Entropy (in information theory) is the amount of information or uncertainty in a piece of data, usually measured in bits. For example a 3 digit PIN or combination lock has 1,000 possible values and so has almost 10 bits of entropy, because 10 bits allows you to count up to 1,024. The entropy of a password or encryption key can be used directly to estimate how long it might take to crack, by trying all possible values." current
  • 21:2821:28, 19 February 2024 diff hist +582‎ Glossary ‎ →‎Glossary of Terms
  • 21:1421:14, 19 February 2024 diff hist +375‎ N Glossary:Signal to Noise Ratio ‎ Created page with "The Signal to Noise (or S/N) ratio is a measure of the strength of a signal compared to any background noise or interference, and is measured in decibels (dB). In an audio system, a high S/N ratio tells you that any background hiss will be imperceptible, and in data communications, the S/N ratio directly affects the rate at which you can transmit data." current
  • 21:1421:14, 19 February 2024 diff hist +355‎ N Glossary:Decibel ‎ Created page with "Decibels (dB) are a measure of relative power, for example by what factor does an amplifier increase the power of a signal, or by what factor is a TV signal reduced by losses in the cable between the aerial and the receiver. It's a logarithmic scale, 3dB representing a doubling of power, hence the dB gains or losses in a signal path can simply be added."
  • 17:5217:52, 19 February 2024 diff hist +315‎ N Glossary:Noise ‎ Created page with "Noise, in the context of electronics and communications, is any unwanted interference tending to mask a desired signal. It can never be eliminated entirely as the electronics we're surrounded with all generates a certain amount of interference, and an electric current itself consists of a random flow of electrons." current
  • 17:4017:40, 19 February 2024 diff hist +372‎ N Glossary:Metadata ‎ Created page with "Metadata is "data about data". For example, a document or spreadsheet may contain information about the author; a digital camera will normally embed information about the exposure, location, date and time of a photo. Sharing these or other types of file can result in undesirable information leakage and privacy issues if you're not aware of the metadata they may contain." current
  • 17:2417:24, 19 February 2024 diff hist +333‎ N Glossary:Decoupling capacitor ‎ Created page with "Variations in the current drawn by one part of a circuit can affect the voltage of the supply, hence affecting another part of the circuit. "Decoupling capacitors" are commonly connected to a supply at various points in order to absorb these variations and minimise any such unwanted and detrimental couplings." current

17 February 2024

  • 11:4611:46, 17 February 2024 diff hist +320‎ N Glossary:Webmail ‎ Created page with "Webmail is the method of managing your email entirely through a web page offered by your email provider, who stores your email on their own servers. The alternative is to manage your email through an applicationon your own device, which can give you greater flexibility in organising, searching and archiving your email."
  • 11:3511:35, 17 February 2024 diff hist +186‎ Glossary:X86 ‎No edit summary
  • 11:1411:14, 17 February 2024 diff hist +148‎ Glossary ‎No edit summary
  • 11:1211:12, 17 February 2024 diff hist +27‎ Glossary:Right to Repair ‎No edit summary
  • 11:1011:10, 17 February 2024 diff hist +581‎ N Glossary:Right to Repair ‎ Created page with "R2R or Right to Repair is the movement and campaign to make repair options widely available at reasonable cost, and to outlaw practices which unnecessarily make repair uneconomic, difficult or virtually impossible. Such practices include non-availability or exhorbitant cost of spare parts or service information, manufacturing methods making disassembly difficult, and parts pairing or software locks restricting repair to the manufacturer or their authorised agents. These..."

15 February 2024

14 February 2024

10 February 2024

  • 17:1817:18, 10 February 2024 diff hist +4‎ Glossary:Ladder logic ‎No edit summary current
  • 17:1717:17, 10 February 2024 diff hist −1‎ Glossary:PLC ‎No edit summary
  • 17:1617:16, 10 February 2024 diff hist +127‎ Glossary ‎ →‎Glossary of Terms
  • 17:1217:12, 10 February 2024 diff hist +300‎ N Glossary:Ladder logic ‎ Created page with "Ladder logic is a kind of simple graphical programming language with its roots in relay logic, formerly much used for the control of industrial plant and machinery, but still used by PLCs in similar applications. More details are given in the Ladder logic."
  • 16:5916:59, 10 February 2024 diff hist +527‎ N Glossary:PLC ‎ Created page with "A PLC or Programmable Logic Controller is a device much used in industry for controlling plant and machinery. It has a number of inputs which would be connected to sensors of different kinds, and outputs through which it can control switches, valves, motors, pumps etc in order for the machine or industrial process to operate correctly and safely. Their pre-electonic origins lie in relay logic and they are still normally programmed by similar Wikipedi..."
  • 16:3816:38, 10 February 2024 diff hist +162‎ Glossary:PLL ‎No edit summary current
  • 16:3216:32, 10 February 2024 diff hist +443‎ N Glossary:Phase ‎ Created page with "Two sounds (or electrical signals, or radio or light waves) may be identical, but if the waves of one lag in time behind those of the other, they're said to differ in phase. A phase difference is measured in degrees; 360 degrees represents a complete cycle so is the same as no phase difference, whereas with a phase difference of 180 degrees, the peak of one wave will coincide with the trough of the other and combined, they will cancel out." current

9 February 2024

31 January 2024

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20 January 2024

  • 16:1616:16, 20 January 2024 diff hist +510‎ Glossary ‎No edit summary
  • 15:5515:55, 20 January 2024 diff hist +341‎ N Glossary:ZIF Connector ‎ Created page with "A ZIF or Zero Insertion Force connector is one in which a clamp of some sort is closed to make a good contact after the mating parts have been engaged, instead of the force being applied during insertion. They are commonly used for delicate ribbon cables, and for test rigs where many insertions of devices under test will routinely be made." current
  • 15:4415:44, 20 January 2024 diff hist +253‎ N Glossary:Thermal Runaway ‎ Created page with "Some electronic components and circuits take more current as as they get hotter. Unchecked, this can lead to a positive feedback effect in which excessive heat causes still more heat to be generated, ending in a catastrophic failure and possibly a fire."
  • 15:3415:34, 20 January 2024 diff hist +315‎ N Glossary:SMD ‎ Created page with "A Surface Mount Device or SMD is an electronic component designed to be mounted on the surface of a printed circuit board, instead of having leads which pass through holes in the board, soldered on the reverse side. Surface mount devices are generlly smaller, often much smaller than their through-hole equivalents."
  • 15:2815:28, 20 January 2024 diff hist +322‎ N Glossary:Ribbon cable ‎ Created page with "Ribbon cables are cables with the conductors laid side by side to form a ribbon, rather than bound together in a bunch. The conductors may be individual insulated wires or may be copper tracks like those on a printed circuit board, laid on a fexible substrate. They are nomally used in conjunction with special connectors."
  • 12:3412:34, 20 January 2024 diff hist +415‎ N Glossary:NFC ‎ Created page with "NFC or Near Field Communication is a set of technologies allowing electromagnetic communication between two devices, usually no more than a few centimeters apart. Each device contains a coil of wire and together they form a transformer through which data can be passed. A small amount of power is also often passed to an NFC device such as a security tag, having no power source of its own." current
  • 12:2212:22, 20 January 2024 diff hist +274‎ N Glossary:LIDAR ‎ Created page with "LIDAR or Light Imaging, Detection and Ranging is a technology similar to radar but using visible or infrared light instead of radio. As with radar, the distance of an object is determined by measuring the time taken for a pulse of light to be reflected off it and to return." current
  • 12:1412:14, 20 January 2024 diff hist +150‎ N Glossary:LDO ‎ Created page with "A LDO or Low Drop-out regulator is a voltage regulator which produces the required output voltage even when the input voltage is only a little higher." current
  • 12:1012:10, 20 January 2024 diff hist +117‎ N Glossary:Haptics ‎ Created page with "Haptics are technologies involving the sense of touch, such as the vibrate alert option offered by most smart phones." current

19 January 2024

  • 12:0312:03, 19 January 2024 diff hist +218‎ Glossary ‎No edit summary
  • 11:5811:58, 19 January 2024 diff hist +684‎ N Glossary:Class A/B/C/D ‎ Created page with "Class A, B, C and D refer to different design architectures for an amplifier, having different power efficiencies. Class A drives the output throughout a cycle, and is the least efficient. Class B drives the output for only a half cycle. Usually, a second Class B driver drives alternate half cycles. Class C drives the output for less than half a cycle and generally drives a tuned circuit to restore the output (typically in a transmitter) to a p..."
  • 11:4911:49, 19 January 2024 diff hist +314‎ N Glossary:PWM ‎ Created page with "PWM or Pulse Width Modulation is a highly efficient method of power control in which the power is switched on and off very rapidly. The ouput is then smoothed with a capacitor and/or inductor and the relative on and off times then determine the power that is delivered."

14 January 2024

13 January 2024

12 January 2024

11 January 2024

6 January 2024

4 January 2024

23 December 2023

18 December 2023

5 December 2023

2 December 2023

28 November 2023

23 November 2023

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28 October 2023

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12 September 2023

11 September 2023

28 August 2023

  • 11:2611:26, 28 August 2023 diff hist +420‎ Glossaire ‎ →‎Glossaire des termes
  • 11:2511:25, 28 August 2023 diff hist 0‎ m Glossary:Short circuit/fr ‎ Philip moved page Glossary:Short Circuit/fr to Glossary:Short circuit/fr without leaving a redirect current
  • 11:2111:21, 28 August 2023 diff hist +171‎ N Glossary:Universal Motor/fr ‎ Created page with "Un moteur AC/DC ou universel est un type de moteur électrique qui fonctionne aussi bien en AC qu'en DC. Voir Moteurs à courant continu et universel (AC/DC) dans le Wiki." current
  • 11:2011:20, 28 August 2023 diff hist +269‎ N Glossary:Watt/fr ‎ Created page with "Le volt est l'unité de pression électrique, un peu comme la pression de l'eau. Il porte le nom du physicien et chimiste italien Alessandro Volta, à qui l'on attribue l'invention de la batterie. Voir Circuits électriques, volts, ampères, watts et ohms dans le Wiki." current
  • 11:1511:15, 28 August 2023 diff hist +269‎ N Glossary:Volt/fr ‎ Created page with "Le volt est l'unité de pression électrique, un peu comme la pression de l'eau. Il porte le nom du physicien et chimiste italien Alessandro Volta, à qui l'on attribue l'invention de la batterie. Voir Circuits électriques, volts, ampères, watts et ohms dans le Wiki." current
  • 11:0911:09, 28 August 2023 diff hist +369‎ N Glossary:Thermal Fuse/fr ‎ Created page with "Un fusible thermique ou un coupe-circuit thermique est un dispositif de sécurité qui interrompt un circuit si la température dépasse un certain niveau critique. Certains sont à usage unique et doivent être remplacés, tandis que d'autres se réinitialisent automatiquement ou peuvent être réinitialisés manuellement. Voir Composants de protection dans le Wiki." current
  • 11:0511:05, 28 August 2023 diff hist +442‎ N Glossary:Short circuit/fr ‎ Created page with "Si deux fils se touchent alors qu'ils ne devraient pas, le courant peut prendre un raccourci, rencontrer très peu de résistance et donc laisser passer trop de choses. Ce n'est pas une bonne chose et votre gadget peut chauffer ou même s'enflammer. Un court-circuit peut également être causé par un pont de soudure involontaire entre deux pistes d'un circuit imprimé, ce qui peut simplement entraîner un dysfonctionnement de l'appareil."
  • 11:0211:02, 28 August 2023 diff hist +169‎ N Glossary:Reservoir Capacitor/fr ‎ Created page with "Un condensateur de réserve ou de lissage est un condensateur de grande valeur utilisé pour lisser le courant alternatif redressé. Voir les alimentations dans le wiki." current
  • 10:5910:59, 28 August 2023 diff hist +154‎ N Glossary:RAM/fr ‎ Created page with "La RAM (Random Access Memory) est la mémoire très rapide utilisée par un ordinateur pour stocker les programmes et les données en cours de traitement." current
  • 10:5610:56, 28 August 2023 diff hist +308‎ N Glossary:Operating System/fr ‎ Created page with "Une système d'exploitation (Operating System, ou OS en anglais) est le logiciel qui gère les ressources informatiques, de stockage et de communication d'un ordinateur et présente une interface utilisateur permettant à l'utilisateur d'exécuter des programmes et d'interagir avec eux comme il le souhaite." current
  • 10:5310:53, 28 August 2023 diff hist +232‎ N Glossary:Open Circuit/fr ‎ Created page with "L'électricité aime faire le tour complet d'un circuit et revenir à son point de départ. Lorsqu'il y a une rupture dans le circuit qui empêche le courant de circuler (peut-être à cause d'une panne), on parle de circuit ouvert." current
  • 10:5010:50, 28 August 2023 diff hist +407‎ N Glossary:Microswitch/fr ‎ Created page with "Un microrupteur est un type d'interrupteur que l'on trouve souvent dans les dispositifs électromécaniques, généralement actionné par un dispositif de verrouillage de sécurité, une came ou un levier plutôt que directement par l'utilisateur. Il existe généralement quelques tailles standard, mais plutôt plusieurs configurations de levier ou de bouton d'actionnement et de disposition des contacts." current
  • 10:4710:47, 28 August 2023 diff hist +291‎ N Glossary:LED/fr ‎ Created page with "Une LED (Light Emitting Diode) est une diode électroluminescente, semblable à toute autre diode semi-conductrice, mais spécialement conçue pour que les photons soient émis lorsque les électrons tombent dans les trous à la jonction entre une région de type p et une région de type n." current
  • 10:4410:44, 28 August 2023 diff hist +248‎ N Glossary:LCD/fr ‎ Created page with "Un écran à cristaux liquides est le type d'écran utilisé dans la plupart des calculatrices, téléphones, tablettes et écrans d'ordinateur. Il utilise un liquide spécial qui agit sur la lumière polarisée sous l'effet d'un champ électrique." current
  • 10:3610:36, 28 August 2023 diff hist +3‎ Glossaire ‎ →‎Glossaire des termes
  • 10:3510:35, 28 August 2023 diff hist +207‎ Glossaire ‎ →‎Glossaire des termes
  • 10:3010:30, 28 August 2023 diff hist +213‎ N Glossary:Integrated Circuit/fr ‎ Created page with "Un circuit intégré (CI, ou IC en anglais) est un circuit composé de dizaines à des milliards de composants électroniques, tous fabriqués sur une seule puce de silicium. Voir Circuits intégrés dans le Wiki." current
  • 10:2810:28, 28 August 2023 diff hist +340‎ N Glossary:Heat Sink/fr ‎ Created page with "Un dissipateur thermique est une pièce de métal conçue pour évacuer la chaleur d'un composant afin d'éviter qu'il ne devienne trop chaud. Lors de la soudure, une pince peut être appliquée sur un fil d'un composant électronique sensible comme dissipateur de chaleur pour éviter que la chaleur de la soudure n'endommage le composant." current
  • 10:2210:22, 28 August 2023 diff hist +197‎ N Glossary:FM/fr ‎ Created page with "La FM ou modulation de fréquence est une méthode de modulation dans laquelle la fréquence d'un signal RF est modulée par le signal AF à transmettre. Voir Modulation de fréquence dans le Wiki." current
  • 10:1910:19, 28 August 2023 diff hist +284‎ N Glossary:Flash/fr ‎ Created page with "Flash est un terme utilisé pour désigner un type de mémoire qui ne peut être modifié qu'en effaçant et en réécrivant un bloc important de cellules à la fois. Flasher est utilisé comme verbe pour désigner le processus de réécriture ou de mise à jour d'une telle mémoire." current
  • 10:1710:17, 28 August 2023 diff hist +185‎ N Glossary:Epoxy/fr ‎ Created page with "L'époxy est un type d'adhésif très puissant qui se présente sous la forme d'une résine et d'un durcisseur séparé. Elle ne commence à durcir que lorsque les deux sont mélangés." current
  • 10:1310:13, 28 August 2023 diff hist +93‎ N Glossary:DAB/fr ‎ Created page with "Le DAB (Digital Audio Broadcasting) est la norme utilisée pour la radiodiffusion numérique." current

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7 July 2023

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