U

UAC (see User Account Control)
UDP (see User Datagram Protocol)
UEFI (see Unified Extensible Firmware Interface)
UID (see User ID)
UMA (see Uniform Memory Access)
UMDF (see User-Mode Driver Framework)
Umount system call, 54
Undefined external, 230
Unicode, 886, 1060
UNICS (see UNiplexed Information and Computing Service)
Unified extensible firmware interface, 34, 279–280, 911
Uniform interfacing for device drivers, 363–364
Uniform memory access multiprocessor, 530–535
Uniform naming, 352
Uniform resource locator, 589
Unikernel, 73–74, 612
Universal coordinated time, 391
Universal serial bus, 34, 359
Universal Windows Platform, 878, 881–883
UNIX, 1, 4, 14–18, 39–51, 56–62, 76–80, 89–93, 105–107, 261–277, 308–312, 400–406, 640–642, 703–716, 1044–1055
- 2BSD, 707
- 4BSD, 707
- Berkeley, 707–708
- file names, 262
- file system, 261–277
- history, 704–713
- input/output, 400–406
- PDP-11, 705–706
- process, 89–93
- V7, 324–330
UNIX password security, 640–642
UNIX system call (see System call)
Unlink system call, 54, 277, 774
Unlock system call, 1054, 1065
Unmap system call, 747
Unmarshalling, 815
Unsafe state, 457–458
Up Win32 call, 938
Upload/download model, 590
URL (see Uniform Resource Locator)
USB (see Universal Serial Bus)
Use-after-free attack, 661–662
Useful techniques, design 1065–1070
User account control, Windows, 1024
User datagram protocol, 760
User friendly software, 17
User ID, 41
User identification, 41
User interface, 395–419
User mode, 2
User shared data, Windows, 930
User-interface paradigm, 1048–1049
User-level communication software, 565–568
User-mode device driver, 342
User-mode driver framework, Windows, 985
User-space input/output software, 368–370
User-space thread, 107–111
UTC (see Universal Coordinated Time)
UWP (see Universal Windows Platform)