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- This edit created a new page (also see list of new pages)
- m
- This is a minor edit
- b
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20 September 2024
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N 21:00 | Fixing Laptop Hinges 2 changes history +2,919 [Philip (2×)] | |||
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21:00 (cur | prev) +411 Philip talk contribs | ||||
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20:56 (cur | prev) +2,508 Philip talk contribs (Created page with "When a laptop screen comes off in your hand (or feels like it might), this page will help... <div class="showtoc"> __TOC__ </div> ==Summary== All pages should start with a summary, to enable the reader to see at a glance what the page is about and whether it is likely to give the information required. This is subtly different from the description of the page's purpose, given above. Retaining the basic structure, replace all the text of this page with your own content....") | |||
17 September 2024
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15:09 | Clocks - Basic Principles 2 changes history +2,264 [Philip (2×)] | |||
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15:09 (cur | prev) +1 Philip talk contribs (→Atomic clocks) | |||
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15:08 (cur | prev) +2,263 Philip talk contribs (→Atomic clocks) | ||||
12 September 2024
| 20:51 | User rights log Philip talk contribs changed group membership for Lee-Grant from (none) to Editor | ||||
4 September 2024
30 August 2024
| 10:06 | Glossary diffhist +160 Philip talk contribs (→Glossary of Terms) | ||||
| N 09:56 | Glossary:Speculative execution diffhist +426 Philip talk contribs (Created page with "High performance CPUs use multiple logic blocks in order to perform as much work as possible in parallel. So for example, if a CPU is required to process a list of ten items it might start to "speculatively execute" the processing of an 11th before it has been able to determine that it has completed the list. Even though this wasted effort has to be discarded, a net performance improvement can be achieved.") | ||||
| N 09:16 | Glossary:Cache diffhist +141 Philip talk contribs (Created page with "A cache is a small and very fast block of memory used to hold immediate working data or frequently used instructions from a computer program.") | ||||
29 August 2024
| m 11:26 | Glossary:RTFM diffhist +113 Philip talk contribs | ||||
| 11:23 | Glossary diffhist +59 Philip talk contribs (→Glossary of Terms) | ||||
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N 11:20 | Glossary:PEBKAC 2 changes history +450 [Philip (2×)] | |||
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11:20 (cur | prev) +36 Philip talk contribs Tag: Visual edit | ||||
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11:19 (cur | prev) +414 Philip talk contribs (Created page with "Problem Exists Between Keyboard And Chair (or a variant) is an expression sometimes used by computer experts and support staff to indicate that a problem lies with a user rather than the computer system. It should be used sparingly and with caution as it can cause offence, also bearing in mind that the real source of the problem might often be shortcomings in the usability of the system or opaque documentation.") | |||
| 08:38 | How to use a multimeter diffhist +197 Philip talk contribs (→Choosing a multimeter) | ||||
28 August 2024
| 11:09 | Glossary diffhist +505 Philip talk contribs (→Glossary of Terms) | ||||
| N 10:21 | Glossary:Floating Point diffhist +515 Philip talk contribs (Created page with "Many of the numbers a computer deals with are whole numbers (integers) which can be easiy represented in binary, but real world numbers can span a huge range of sizes. Floating point is a method of representing such numbers in two parts: a mantissa represents the significant digits and an exponent tells you where the decimal point comes (or the binary point for binary numbers). This is similar to the scientific notation in which one and a half million...") | ||||
| N 10:06 | Glossary:RISC-V diffhist +386 Philip talk contribs (Created page with "RISC-V (pronounced Risk Five) is a RISC computer architecture with its roots in an academic design at Berkley. There are 32 and 64 bit variants of the basic design and numerous optional extensions giving additional instructions for different data types and types of operation. Unlike ARM, the design is completely open source.") | ||||
| N 09:41 | Glossary:ARM diffhist +522 Philip talk contribs (Created page with "ARM, or Advanced RISC Machines is a computer architeture designed for low cost and low power consumption. It is used in huge numbers of smartphones but equally, supercomputers have been built using large swarms of them. It was first introduced in 1985 by Acorn Computers (also known for their BBC Micro) but it has since gone through several generations. The design is owned by Arm Ltd who licence it to...") | ||||
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N 09:03 | Glossary:CISC 2 changes history +450 [Philip (2×)] | |||
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09:03 (cur | prev) +80 Philip talk contribs | ||||
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08:43 (cur | prev) +370 Philip talk contribs (Created page with "CISC or Complex Instruction Set Computer is a computer architecture in which the basic machine instructions are generally fairly complex and highly functional, however, this means that they are relatively expensive to implement. By comtrast, the RISC or Reduced Instruction Set Computer architecture was developed to optimise performance in other ways.") | |||
| N 09:01 | Glossary:RISC diffhist +493 Philip talk contribs (Created page with "RISC or Reduced Instruction Set Computer is a computer architecture in which the basic machine instructions are very simple and so can be implemented cheaply. Although more instructions may be needed for a given task, they can be made to run very fast and the silicon saved can be used for other optimisations such as large cache memories to speed up execution. The result can be a significant net gain in performance. ARM is the most widely used example of...") | ||||
| N 08:04 | Glossary:Instruction set diffhist +277 Philip talk contribs (Created page with "The instruction set of a computer is the repertoire of fundamental low-level machine istructions used to program it. Different computer architectures such as x86, ARM and RISC-V have different incompatible instruction sets.") | ||||
| N 08:00 | Glossary:Assembler diffhist +292 Philip talk contribs (Created page with "Assembly code or assembler is a direct one-to-one representation of the fundamental binary instructions used by a computer, in human-readable form. Instruction codes are written as mnemonics such as ADD and MOV, and storage locations holding the data are given names chosen by the programmer.") | ||||
27 August 2024
| 21:17 | Glossary:Gnats whisker diffhist +156 Philip talk contribs | ||||
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20:56 | Magnifiers and Inspection Aids 2 changes history +179 [Philip (2×)] | |||
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20:56 (cur | prev) +57 Philip talk contribs (→Magnifying Glasses) | ||||
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20:52 (cur | prev) +122 Philip talk contribs (→Inspection Lights) | |||
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20:45 | Clocks - Basic Principles 4 changes history +220 [Philip (4×)] | |||
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20:45 (cur | prev) +35 Philip talk contribs (→External links) | ||||
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20:42 (cur | prev) +164 Philip talk contribs (→External links) | ||||
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17:10 (cur | prev) −8 Philip talk contribs (→Mechanical) | |||
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17:05 (cur | prev) +29 Philip talk contribs (→Quartz crystals) | |||