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• 08:29, 12 September 2022 Philip talk contribs created page 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.")
• 21:26, 11 September 2022 Philip talk contribs created page 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.")
• 18:55, 11 September 2022 Philip talk contribs created page 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.") Tag: Visual edit
• 17:19, 9 September 2022 Philip talk contribs created page 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.") Tag: Visual edit
• 16:43, 9 September 2022 Philip talk contribs created page 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
• 16:27, 9 September 2022 Philip talk contribs created page 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...") Tag: Visual edit
• 16:14, 9 September 2022 Philip talk contribs created page 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
• 15:54, 9 September 2022 Philip talk contribs created page 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
• 15:42, 9 September 2022 Philip talk contribs created page 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
• 15:04, 9 September 2022 Philip talk contribs created page 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.")
• 14:59, 9 September 2022 Philip talk contribs created page 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.")
• 12:33, 9 September 2022 Philip talk contribs created page 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.")
• 12:16, 9 September 2022 Philip talk contribs created page 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.")
• 11:29, 9 September 2022 Philip talk contribs created page 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.") Tag: Visual edit
• 11:19, 9 September 2022 Philip talk contribs created page 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
• 11:19, 9 September 2022 Philip talk contribs created page 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...") Tag: Visual edit
• 10:44, 9 September 2022 Philip talk contribs created page 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
• 10:30, 9 September 2022 Philip talk contribs created page 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.") Tag: Visual edit
• 10:29, 9 September 2022 Philip talk contribs created page 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.") Tag: Visual edit
• 09:45, 9 September 2022 Philip talk contribs deleted page File:LongSecrewdriverBits.jpg (content was: "#REDIRECT File:LongScrewdriverBits.jpg", and the only contributor was "Pleriche" (talk))
• 09:43, 9 September 2022 Philip talk contribs deleted page Escalation of Privilege (content was: "#REDIRECT Glossary:Escalation of Privilege", and the only contributor was "Philip" (talk))
• 09:43, 9 September 2022 Philip talk contribs deleted page Glossary:Compact Florescent Lamp (content was: "#REDIRECT Glossary:Compact Fluorescent Lamp", and the only contributor was "Philip" (talk))
• 16:27, 8 September 2022 Philip talk contribs created page 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.")
• 16:15, 8 September 2022 Philip talk contribs created page 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.")
• 16:07, 8 September 2022 Philip talk contribs created page 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.")
• 15:42, 8 September 2022 Philip talk contribs deleted page Glossary:Escalation of Privilege (Duplicate)
• 15:41, 8 September 2022 Philip talk contribs deleted page Remote Code Execution (Duplicate)
• 15:03, 8 September 2022 Philip talk contribs moved page Escalation of Privilege to Glossary:Escalation of Privilege
• 14:58, 8 September 2022 Philip talk contribs created page Remote Code Execution (Created page with "A Remote Code Execution or RCE is a type of vulnerability in a software component allowing an attacker to run his own (malicious) software on a device that he can access across the Internet or a local network, without logging in or otherwise gaining ligitimate access. Having thus gained an initial foothold, an attacker will often look for an Escalation of Prvilege in order to gain complete control over the device.")
• 14:58, 8 September 2022 Philip talk contribs created page Escalation of Privilege (Created page with "An Escalation of Privilege (or EoP, or PrivEsc) is a type of vulnerability in a software component allowing an attacker having only a normal user's rights and privileges to gain additional privileges up to (perhaps) total comtrol over the device. Attackers will frequently look for an EoP to exploit, having gained an initial foothold maybe through a compromised user account.")
• 09:58, 8 September 2022 Philip talk contribs set 6537 as the approved revision for "The Absolute Basics"
• 09:54, 8 September 2022 Philip talk contribs moved page Talk:The Least You Need To Know to Talk:The Absolute Basics (Better title)
• 09:54, 8 September 2022 Philip talk contribs moved page The Least You Need To Know to The Absolute Basics (Better title)
• 15:24, 7 September 2022 Philip talk contribs deleted page How to Fix a Broken iPhone Screen (Advertising)
• 15:00, 5 September 2022 Philip talk contribs created page Glossary:Rotor (Created page with "The rotor in an electric motor is the part that rotates, as opposed to the stator, which is the part that doesn't. More generally, a rotor can be any part...")
• 14:54, 5 September 2022 Philip talk contribs created page Glossary:Stator (Created page with "The stator of an electric motor is the part that doesn't move, as opposed to the rotor which is the part that rotates.")
• 21:35, 4 September 2022 Philip talk contribs created page Glossary:Reluctance motor (Created page with "A reluctance motor is one in which coils in the stator produce a rotating magnetic field which drags a magnetic Glossary:Ro...")
• 21:27, 4 September 2022 Philip talk contribs created page Glossary:Magnetic Reluctance (Created page with "Magnetic reluctance is a measure of the reluctance of a magnetic material to change its state of magnetisation. Permanent magnets are made of materials with high reluctance, w...")
• 16:05, 4 September 2022 Philip talk contribs uploaded a new version of File:Tap-dribble.gif
• 21:22, 1 September 2022 Philip talk contribs created page File:Tap-dribble.gif (A dribble of water from a tap - a very small flow.)
• 21:22, 1 September 2022 Philip talk contribs uploaded File:Tap-dribble.gif (A dribble of water from a tap - a very small flow.)
• 16:17, 23 August 2022 Neil talk contribs set 5371 as the approved revision for "How to submit a manual to the Internet Archive"
• 09:43, 6 August 2022 Philip talk contribs created page Talk:How to change watch batteries (Created page with "'''This is the Discussion page for How to change watch batteries.''' You are encouraged to leave any comments or queries below. Please sign all contributions by appending 2 h...")
• 21:40, 2 August 2022 Philip talk contribs created page File:RaspberryPiDesktop.png (Raspberry Pi Desktop)
• 21:40, 2 August 2022 Philip talk contribs uploaded File:RaspberryPiDesktop.png (Raspberry Pi Desktop)
• 21:39, 2 August 2022 Philip talk contribs deleted page File:RaspberryPiDesktop.jpg
• 21:25, 2 August 2022 Philip talk contribs created page File:RaspberryPiDesktop.jpg (Raspberry Pi Desktop)
• 21:25, 2 August 2022 Philip talk contribs uploaded File:RaspberryPiDesktop.jpg (Raspberry Pi Desktop)
• 09:10, 1 August 2022 Philip talk contribs set 6467 as the approved revision for "How to change watch batteries"
• 15:02, 26 July 2022 Boyd-Goldie talk contribs created page File:Watch in press.jpeg (Double check that the orientation of the back is correct with the recess for the winder shaft correctly in place. The die for the watch face must contact the metal surround and not the glass. Too big is bad. Too bad is bad)