User contributions for Philip
12 September 2022
- 09:1409:14, 12 September 2022 diff hist 0 m Glossary:DVI Philip moved page DVI to Glossary:DVI without leaving a redirect current
- 09:0909:09, 12 September 2022 diff hist +285 N Glossary:DisplayPort Created page with "DisplayPort is a standard for carrying digital video from a source such as a computer to a display. It can also carry digital audio, USB and other types of data. The connectors are rectangular but with one corner shaved off. There are also mini and micro versions." current Tag: Visual edit
- 08:5708:57, 12 September 2022 diff hist +43 m Glossary:DVI No edit summary Tag: Visual edit
- 08:5508:55, 12 September 2022 diff hist +437 N Glossary:DVI Created page with "DVI is a standard for carrying analogue and/or digital video from a source (most commonly a computer) to a display device. It uses a connector which is almost rectangular, but with two corners on the same long edge slightly rounded. The connectors can accommodate 3 rows of 8 pins plus an extra 4 in a separate group for analogue video, but the number actually present varies according to the type and number of video channels supported."
- 08:4208:42, 12 September 2022 diff hist +299 N Glossary:HDMI Created page with "HDMI is a standard for carrying digital video and audio from a source such as a computer or a TV tuner to a display device such as a flat screen monitor or a projector. It uses a connector in standard, mini and micro sizes, all shaped as a rectangle with two chamfered corners on the same long edge." current
- 08:2908:29, 12 September 2022 diff hist +279 N Glossary:VGA Created page with "VGA (or Video Graphics Adapter) the the oldest, yet still very widely used standard for connecting a video monitor to a computer. It uses a 15 pin D-shaped connector carrying separate analogue signals representing the red, green and blue picture components." current
- 08:2108:21, 12 September 2022 diff hist +12 m Glossary:ESP No edit summary current Tag: Visual edit
11 September 2022
- 21:3221:32, 11 September 2022 diff hist +50 Glossary No edit summary Tag: Visual edit: Switched
- 21:2621:26, 11 September 2022 diff hist +276 N Glossary:USB Created page with "USB or Universal Serial Bus is a method of connecting a wide range of peripheral devices to a computer, such as keyboards and mice, storage devices and many more. Several revisions of the standard from USB 1.0 to USB 4 have successively increased its data transfer capability."
- 18:5718:57, 11 September 2022 diff hist +65 Glossary No edit summary Tag: Visual edit: Switched
- 18:5518:55, 11 September 2022 diff hist +124 N Glossary:Electret Created page with "An electret is a material having a permanent built-in electric charge, like the electrical equivalent of a permanent magnet." current Tag: Visual edit
10 September 2022
- 09:3009:30, 10 September 2022 diff hist 0 Sandbox No edit summary Tag: Visual edit
9 September 2022
- 17:2117:21, 9 September 2022 diff hist +672 Glossary No edit summary Tag: Visual edit: Switched
- 17:1917:19, 9 September 2022 diff hist +377 N Glossary:Memory effect Created page with "The memory effect is the property of some types or rechargeable batteries to "remember" if they have frequently been only partially discharged. They can then become reluctant to deliver more charge in future. The cure is to fully dischage then fully recharge them periodically. NiCd batteries are particularly prone, and NiMH rather less so." current Tag: Visual edit
- 17:0217:02, 9 September 2022 diff hist +1 Glossary:VSWR No edit summary current Tag: Visual edit
- 17:0017:00, 9 September 2022 diff hist +40 Glossary:Fibre Optics No edit summary Tag: Visual edit
- 16:4316:43, 9 September 2022 diff hist +563 N Glossary:Fibre Optics Created page with "If you feed light into the end of a thin glass or transparent plastic fibre, it will be constrained to the fibre by total internal reflection and emerge at the far end, even if the fibre is many miles long. Furthermore, with high quality fibre the losses can be much less than with an electrical cable, and light can carry vastly more data than an electrical signal. Fibre optics is the application of this principle, together with the ancilliary lasers or Glossary:LED|LED..." Tag: Visual edit
- 16:2716:27, 9 September 2022 diff hist +537 N Glossary:Waveguide Created page with "At the highest frequencies (GHz and above), every bit of wire acts like an aerial, so you can no longer rely on sending a signal down a wire and expecting it to get to the other end. So why not let it do its thing? Feed it into an aerial at the end of a copper pipe and it'll bounce all the way down the inside and come out at the far end. This is what a waveguide is. A microwave oven contains a waveguide to feed the energy from the..." current Tag: Visual edit
- 16:1416:14, 9 September 2022 diff hist +677 N Glossary:Quantum Computer Created page with "Don't worry, you may never have to fix one of these. One of the predictions of Quantum Mechanics is that sub-atomic particles can effectively be in more than one state at a time. In theory, you should be able to use this property to build a computer that explores many possible solutions to a problem simultaneously rather than trying them one by one, as a normal computer would. This could be really neat for cracking cryptographic codes, or w..." Tag: Visual edit
- 15:5415:54, 9 September 2022 diff hist +322 N Glossary:Quantum Mechanics Created page with "Quantum Mechanics (or QM for short) is the counter-intuitive theory of how things behave at the atomic and sub-atomic levels. It has passed every test physiscists have thrown at it, yet nobody understands it, only how to use its predictions to design lasers and silicon chips and al the modern gadgets that depend on them." Tag: Visual edit
- 15:4215:42, 9 September 2022 diff hist +739 N Glossary:VSWR Created page with "If you connect a transmitter to an aerial via a long cable, at any discontinuity in the cable, some of the energy will be reflected back towards the transmitter instead of reaching the aerial. At some points between the transmitter and the discontinuity, the phases of the reflected and outgoing waves will reinforce and at other points they will partially cancel, creating "standing waves". The Voltage Standing Wave Ratio or VSWR is the ratio of the highest to the lowest v..." Tag: Visual edit
- 15:1815:18, 9 September 2022 diff hist +324 Glossary:Kirchoff's Laws No edit summary current Tag: Visual edit
- 15:0415:04, 9 September 2022 diff hist +291 N Glossary:Kirchoff's Laws Created page with "You can calculate the voltages and currents in a simple circuit with Ohm's Law, but not for more complex circuits (such as a decorative net curtain of LEDs). Kirchoff's Laws allow you to write down a series of simultaneous equations which you can solve to find all the voltages and currents."
- 14:5914:59, 9 September 2022 diff hist +292 N Glossary:Black Box Created page with "Often, a complex system can be broken down into several subsystems. So long as you know the inputs and the outputs of a sybsystem and how they're related, you can understand the whole system by regarding that subsystem as a "black box", without considering, or even knowing what's inside it."
- 12:3312:33, 9 September 2022 diff hist +310 N Glossary:Collet Created page with "A collet is a device for holding a spindle or a rotary tool such as a drill. It consists of a hollow metal cylinder with several slits along part of its length. It is sized so that the tool is a sliding fit inside it. The slits then allow it to be squeezed by some mechanism in order to securely grip the tool." current
- 12:2212:22, 9 September 2022 diff hist +53 Glossary No edit summary Tag: Visual edit: Switched
- 12:2012:20, 9 September 2022 diff hist +146 Glossary:SMPS No edit summary current Tag: Visual edit
- 12:1612:16, 9 September 2022 diff hist +218 N Glossary:SMPS Created page with "A Switch-mode power supply is a power supply which uses a switch-mode regulator, generally in conjunction with a small ferrite-core transformer, rather than a heavy and bulky iron-core transformer and linear regulator."
- 11:3411:34, 9 September 2022 diff hist +153 Glossary No edit summary Tag: Visual edit: Switched
- 11:2911:29, 9 September 2022 diff hist +377 N Glossary:VoIP Created page with "VoIP or Voice over IP refers to the use of the Internet and Internet protocols (principally UDP) to implement traditional telephony in a much more flexible way. Your normal telephone handset can be replaced by an IP phone connected to your home router, or an app on your computer." current Tag: Visual edit
- 11:2011:20, 9 September 2022 diff hist +9 m Glossary:TCP No edit summary current Tag: Visual edit
- 11:1911:19, 9 September 2022 diff hist +513 N Glossary:TCP Created page with "TCP or Transmission Control Protocol is an Internet protocol which provides a bidirectional data stream between two Internet-connected devices. It uses IP to transmit the data as a series of packets, keeping track of them so as to request retransmission of any that get lost and re-ordering any that arrive out of sequence. It is used where it's vital that all the data arrives exactly as sent even though that migh..." Tag: Visual edit
- 11:1911:19, 9 September 2022 diff hist +481 N Glossary:UDP Created page with "UDP or User Datagram Protocol is an Internet protocol which uses IP to provide for rapid and low overhead transmission of packets of data from one Internet-connected device to another. It is used in applications such as audio or video streaming where the loss of an occasional packet would be much less noticeable than the stuttering that would result from possibly multiple retransmission att..." current Tag: Visual edit
- 10:5310:53, 9 September 2022 diff hist 0 m Glossary:IPAddress No edit summary current Tag: Visual edit
- 10:5210:52, 9 September 2022 diff hist +174 Glossary No edit summary Tag: Visual edit: Switched
- 10:4410:44, 9 September 2022 diff hist +511 N Glossary:IPAddress Created page with "An IPaddress is the equivalent of a telephone number on the Internet, and is used for routing data from one device to another anywhere in the world. IP version 4 addresses consist of 4 decimal numbers separated by dots (e.g. 192.168.2.1), whereas in IP version 6 they consist of up to 8 hexadecimal numbers separated by colons. One or more consecutive zero fields are represented by a double..." Tag: Visual edit
- 10:3010:30, 9 September 2022 diff hist +403 N Glossary:IPv6 Created page with "IP version 6 (IPv6) is a later version of the Internet Protocol using 128 bit addresses and designed to overcome the limited addressing capabilities of the older IPv4. Although supported by virtually all current networked devices, its adoption has been slow as interworking with IPv4 is far from transparent." current Tag: Visual edit
- 10:2910:29, 9 September 2022 diff hist +286 N Glossary:IPv4 Created page with "IP version 4 (IPv4) is the version of the Internet Protocol predominantly in use on the Internet today. It uses 32 bit addresses which has proved insufficient as the reach of the Internet has become universal." current Tag: Visual edit
- 10:0910:09, 9 September 2022 diff hist −128 Glossary:IP No edit summary current Tag: Visual edit
- 09:5009:50, 9 September 2022 diff hist +9 m Glossary:FTP No edit summary Tag: Visual edit
- 09:4909:49, 9 September 2022 diff hist +50 Glossary →Glossary of Terms Tag: Visual edit: Switched
- 09:2409:24, 9 September 2022 diff hist +109 Glossary No edit summary
8 September 2022
- 20:5520:55, 8 September 2022 diff hist +29 Sandbox No edit summary Tag: Visual edit
- 16:2716:27, 8 September 2022 diff hist +436 N Glossary:TOR Created page with "TOR (The Onion Router) is a method of hiding your location as you browse the Internet. Your data is encrypted with several successive layers of encryption and then passed through a series of routers. Each router peels off one layer of encryption (like layers of an onion) using an encryption key known only to itself. Thus, each router only knows its predecessor and successor, and the final destination cannot determine the originator." current
- 16:1516:15, 8 September 2022 diff hist +237 N Glossary:FTP Created page with "FTP (or File Transfer Protcol) is an insecure method of transferring files from one computer to another, such as from your computer to your own website hosting provider. Secure alternatives SFTP or FTPS are strongly strongly recommended."
- 16:0716:07, 8 September 2022 diff hist +387 N Glossary:Cookie Created page with "A cookie is a small parcel of data passed back to your browser when you visit a website. When you return to the site or navigate to another page on it, your browser will return the cookie with your request. This enables the website to recognise that it's you coming back and so save you having to login or choose your preferences or select the items in your shopping cart all over again." current
- 15:4615:46, 8 September 2022 diff hist +174 Glossary →Glossary of Terms
- 15:4615:46, 8 September 2022 diff hist +40 Glossary:Privilege Escalation No edit summary current Tag: Visual edit: Switched
- 10:0810:08, 8 September 2022 diff hist +77 m The Absolute Basics No edit summary Tag: Visual edit: Switched
- 09:5709:57, 8 September 2022 diff hist +1 Main Page The Absolute Basics name change Tag: Visual edit