User`s guide

ISA
Industry Standard Architecture. An 8-bit or 16-bit interface for interconnecting
data storage, data processing, and peripheral control devices in a closely
coupled configuration.
local bus
A bus that is in close proximity to the CPU and shares its speed. PCI is a local
bus.
PAL
Programmable array logic.
PCI
Peripheral component interconnect. The 64-bit and 32-bit local bus developed
by Intel.
PGA
Pin grid array.
PLA
Programmable logic array.
PLD
Programmable logic device.
PLL
Phase-locked loop.
PPGA
Plastic pin grid array.
PQFP
Plastic quad flat pack.
primary cache
The cache that is the fastest and closest to the processor. The 21164 Alpha
microprocessor contains instruction, data, and unified instruction and data
caches. Also called L1 cache.
RAM
Random-access memory.
Glossary–3