chapter 7
How Motherboard work
Form Factors
AT For Factors
ATX Form Factor
ITX
Chipset
CPU
RAM
Super I/0 chip
Expansion Bus
expansion slots
mean the adding expansion cards and thus new functions to the PC.
expansion bus crystal
which controlled the part of the external data bus connected to the expansion slots .
PCI
Mini-ITX is a 17 × 17 cm (6.7 × 6.7 in) motherboard, developed by VIA Technologies in 2001.
ATX is distinct from AT in the lack of and AT keyboard port, replaced with a rear panel has all necessary ports built in .
The AT form factors ,invented by IBM in the early 1980's was the predominant form factor for motherboards through the mid-1990's
Every motherboard has a chipset ,one or more discrete integrated circuit that support the CPU's interfacing to all the other devices on the motherboard.
RAM is an acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes.
some motherboard manufacturers added a third chip call the super I/0 chip to handle these chores ,especially in dealing with legacy devices .
peripheral component Interconnect
PIC X
PIC Extended
Mini-PCI
mini -pci was designed to use low power and to lie flat
PCI Express
PCi Express is the latest,fastest ,and most popular expansion bus in use today .
AGP
Accelerated Graphic port