IBM 5150 Technical Reference

Index
Special Characters
-MEMR (memory read command) 1-22
-MEMW (memory write command) 1-22
A
adapter card with ROM 5-13
address
bits 0
to 19 (AO-A19), I/O channel 1-20
enable (AEN),
I/O channel 1-20
latch enable (ALE),
I/O channel 1-20
map,
I/O 1-24
AEN (address enable), I/O channel 1-20
ALE (address latch enable), I/O channel 1-20
B
BASIC reserved interrupts 5-8,5-9
BASIC,
DEF SEG 5-11
reserved interrupt 5-8, 5-9
binary integers (coprocessor)
2-3,2-4
~ BIOS,
parameter passing 5-4
quick reference 5-29
software interrupt 5-6
system ROM 5-29
Index-l

IBM 5150 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Manufacturer	IBM
Model	5150
Release Year	1981
Storage	5.25-inch floppy drives
Graphics	MDA or CGA
Operating System	IBM PC DOS
Ports	Cassette, keyboard
Expansion Slots	5