O

ok prompt, 68

OpenBoot

Architecture Standard, 64, 65

configuration variables, 65, 95

hardware devices and, 80

PROM, 93, 99

chip, 65

commands, 69, 95

monitor, 64, 65

open standards, 313

Open Systems Interconnection (OSI), 314

reference model, 349

seven protocol layers of, 315

operating system (OS), 4–6, 24, 132

application programs and, 42

command line, 83, 92

file system and, 13

as functioning to control program, 5

hardware architecture and, 26

installing on multiple machines, 504

interacting with, 15

as mediator, 5

multiuser and multitasking system, 528

releases and, 26

as resource manager, 5

output, redirecting, 22

owner, 212, 223

ownership, 212–219