Keyboard shortcuts

Press ← or → to navigate between chapters

Press S or / to search in the book

Press ? to show this help

Press Esc to hide this help

Time slicing

  • While one program waits for IO, other program can run. This is called time-slicing.

  • No Multitasking (e.g. MS DOS)

  • Cooperative multitasking (program gives up the CPU by going into wait-state) (MS Windows 3.1) (if not, freezing)

  • Pre-emptive multitasking (OS is responsible to switch between running processes) (Unix, Linux, Windows 95/NT and later)