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Sampling theorem, 229
Saturated devices, 248
Scheduling, 70-71, 105
CPU, 384-86
distributions and, 134-35
goal, 105
model, 447
multilevel timeslice, 71
process, 133
See also Process management
Scheduling algorithms, 133-37
FCFS, 133, 135
LCFS, 133
relationship to computer systems performance, 135-37
round robin, 133-34, 135
SRTF, 134
value-driven, 134
Secondary storage
architectures and, 8, 50-54
archival devices, 53-54
magnetic devices, 52-53
optical devices, 52-53
peripheral devices and, 50-54
tape devices, 51-52
Security manager, 96
Semaphores, 66-67
Shared memory model, 351
Shortest remaining time first (SRTF), 134
Simscript, 269-70
bank teller pension code, 270
defined, 269
features, 269
simulation pieces, 269
See also Simulation languages
Simulation languages, 261-73
development, 261-62
early, 262
GASP IV, 262-66
GPSS, 266-69
Simscript, 269-70
SLAM II, 270-73
Simulation modeling, 256-61
combined, 260-61
continuous, 258-60
discrete, 256-58
hybrid, 261
queuing, 260
Simulation(s), 28-29, 32-33
analysis, 251-78
applications, 273-77
continuous, 258
data input/extraction and, 254
discrete, 32
drawbacks, 32
flexibility and, 333-34
LAN, 463-93
models, 33, 256-61
next event, 482
operating system test, 380-97
process, 253-55
programs, 253, 276-77
queue-based, 32
reasons for using, 251
summary, 278
systems and, 252-53
systems and modeling, 256-61
time control, 255-56
trace-driven data and, 255
uses, 252
See also Modeling tools
SLAM II, 270-73
advantages, 270-71
bank teller problem code, 273
bank teller problem network model, 272
defined, 270
FORTRAN coding, 271
network model code, 277
network model for assembly line problem, 274
network model for distributed database system, 275-76
symbols/statements, 271-72
See also Simulation languages
Software monitors, 114-15, 320-21
code fragments, 320
drawbacks, 321
event design approach, 320
operating systems code access and, 321
system resource use, 321
See also Data extraction
Star topology, 59
State transition diagrams
birth-death process, 189
for closed system, 221
Markov process, 194
M/M/C queuing system, 216
M/M/I queuing system, 209
probability, 356
State transition timing graph, 296
Stochastic processes, 179-200, 205
Bernoulli, 182-83
continuous, 180
counting process, 180
defined, 179
discrete, 180
independent, 182
Markov, 179, 192-200
order of functions and, 180-81
Poisson, 184-86
representation, 179-80
stationary, illustrated, 183
stationary increment, 182
See also Processes
Structured Query Language (SQL), 84, 85, 89, 431
Synchronous timing, 255
System architectures, 362-72
LINUX, 362-65
Windows ME, 369-72
Windows NT, 367-69
Windows XP, 365-67
See also Operating systems
System-oriented performance measures, 107, 108
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