xviii Abbreviations
ISR
In Service register
I/O
input/output
IPC
integrated peripheral controller
ips
inches per second
IRQ
interrupt request
K
kilo (1024)
k
kilo (1000)
KB
kilobyte
kg
kilogram
kHz
kilohertz
lb
pound
LED
light-emitting diode
LSB
least-significant bit
LSI
large-scale integration
M
mega
mA
milliamps
max
maximum
MB
megabyte
MDA
Monochrome Display Adapter
MFM
modified frequency
modulation
MHz
megahertz
mm
millimeter
ms
millisecond
MSB
most-significant bit
NASC
National Authorized Service
Center
NC
not connected
NMI
Non-maskable Interrupt
ns
nanosecond
NSRC
National Service Response
Center
PAL
programmable array logic
PC
personal computer
PCB
printed circuit board
PCI
Peripheral Component
Interconnect
PFP
plastic flat package
PIO
programmable input/output
pixel
picture element
PLCC
plastic lead chip carrier
PLL
phase lock loop
p-p
peak-to-peak
PPI
programmable peripheral
interface
PPB
PCI-to-PCI Bridge
PROM
programmable ROM
QFP
quad flat pack
RAM
random-access memory
RAMDAC RAM digital-to-analog
RAS
row address strobe
RGB
red green blue
RGBI
red green blue intensity
ROM
read-only memory
rpm
revolutions per minute
R
read
R/W
read/write
S
slave
SCSI
Small Computer System
Interface
SG
signal ground
SIMM
single inline memory module
SVGA
Super Video Graphics Array
SW
switch
TAC
Technical Assistance Center
TSC
Technical Support Center
TTL
transistor/transistor logic
tpi
tracks per inch
V
volt
Vdc
volts, direct current
VESA
video electronics standards
association
VGA
Video Graphics Array
VRAM
virtual RAM
W
watt
W
write