UNIX环境高级编程读书笔记(第二版)/Advanced Programming in the UNIX Environment(2nd)

Typical Services:

• Executing a program (execution)
• Opening a file (file IO)
• Reading a file (file IO)
• Allocating a region of memory (memory management)
• Getting the current time of day (time management)
• And so on(net, scheduler, etc.)

whirlwind(旋风，旋风般的)

• kernel, system calls, library routines, shell, applications