Multikey Commands - IBM Personal Computer AT Manual To Operations

Multikey Commands
The following are examples of multikey sequences that
preform control functions, when using IBM BASIC.
System Restart reloads your program.
Press and hold the Ctrl and Alt keys. Then, press the
Del key to generate a system restart.
Control Break stops your program while it's running
and identifies the line where it stops.
Press and hold the Ctrl key. Then, press the Scroll
Lock key to generate a control break.
Keyboard 1-17