X, 404–408

X client, 404

X Intrinsic, 404

X Resource, 406

X server, 404

X Widget, 405

X window system, 18, 404–408, 710, 715

X11, 18, 715

X64 emulation on arm64, 953–955

X86, 21, 33, 183, 243, 248, 695

• virtualization, 509–511

XCHG

Xen, 481, 502

XFG (see Extended Flow Guard)

Xlib, 404

Xtacache, Windows, 952