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Baby AT (BAT) Motherboard Form Factor

The Baby AT (BAT) format reduced the dimensions of the motherboard to a typical 9in wide by 10in long, and BAT motherboards are generally characterised by their shape, an AT-style keyboard connector soldered to the board and serial and parallel … [Read more...]

Filed Under: Motherboards Tagged With: Baby AT form factor, Baby AT motherboard, BAT, BAT form factor

Motherboard form factors

Early PCs used the AT form factor and 12in wide motherboards. The sheer size of an AT motherboard caused problems for upgrading PCs and did not allow use of the increasingly popular slimline desktop cases. These problems were largely addressed by the smaller version of the full AT form factor, … [Read more...]

Filed Under: Motherboards Tagged With: AT form factor, Baby AT form factor, motherboard form factor, TX form factor

EFI – Extensible Firmware Interface – explained

The BIOS has evolved very little since the birth of the PC in 1981, remaining a chunk of hand-crafted assembly language code most users know only for the series of arcane configuration and test messages fleetingly displayed when they turn on their PC. Intel first signalled that all … [Read more...]

Filed Under: Motherboards Tagged With: BIOS, boottime, EFI, runtime

CMOS – complementary metal oxide silicon – RAM chips on motherboards

Motherboards also include a separate block of memory made from very low power consumption CMOS (complementary metal oxide silicon) RAM chips, which is kept alive by a battery even when the PC's power is off. This is used to store basic information about the PC's configuration: number and … [Read more...]

Filed Under: Motherboards Tagged With: CMOS, CMOS RAM, complementary metal oxide silicon, motherboard CMOS

BIOS – What motherboard BIOS does for a PC

All motherboards include a small block of Read Only Memory (ROM) which is separate from the main system memory used for loading and running software. The BIOS will most likely be stored in a 32-pin chip, which can typically be identified by a silver or gold sticker that shows the name … [Read more...]

Filed Under: Motherboards Tagged With: BIOS, motherboard BIOS, what is the bios

Evolution of the motherboard

The original PC motherboard had a minimum of integrated devices, just ports for a keyboard and a cassette deck (for storage). Everything else, including a display adapter and floppy or hard disk controllers, were add-in components, connected via expansion slots. Over time, more devices were … [Read more...]

Filed Under: Motherboards

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Gaming Laptop Security Guide: Protecting Your High-End Hardware Investment in 2025

Since Jacob took over PC Tech Guide, we’ve looked at how tech intersects with personal well-being and digital safety. Gaming laptops are now … [Read More...]

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13 Impressive Stats on the Future of AI

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Graphic Designers on Reddit Share their Views of AI

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Redditors Talk About the Impact of AI on Freelance Writers

AI technology has had a huge impact on our lives. A 2023 survey by Pew Research found that 56% of people use AI at least once a day or once a week. … [Read More...]

11 Most Popular Books on Perl Programming

Perl is not the most popular programming language. It has only one million users, compared to 12 million that use Python. However, it has a lot of … [Read More...]

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