xiv Abbreviations
HEX
hexadecimal
HGA
Hercules Graphics Adapter
Hz
hertz
IC
integrated circuit
ID
identification
IDE
intelligent device electronics
IDTR
interrupt descriptor table
register
IMR
Interrupt Mask register
in.
inch
INTA
interrupt acknowledge
IPB
illustrated parts breakdown
IR
infrared
IRR
Interrupt Request register
ISA
Industry Standard Architecture
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
kV
kilovolt
lb
pound
LCD
liquid crystal display
LDTR
local descriptor table register
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
NDP
numeric data processor
NMI
Non-maskable Interrupt
ns
nanosecond
NSRC
National Service Response
Center
NTFS
NT file allocation
PAL
programmable array logic
PC
personal computer
PCB
printed circuit board
PCI
peripheral component
interconnect
PFP
plastic flat package
PIO
parallel input/output
pixel
picture element
PJQFP
plastic J-lead quad flat pack
PLCC
plastic lead chip carrier
PLL
phase lock loop
p-p
peak-to-peak
PnP
Plug and Play
PPI
programmable peripheral
interface
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