ICL 1900 Series George 3 Operating System Commands

HOLD (HO)

Function

Informs GEORGE that a disc is to be unloaded by simulating the function of the HOLD button.

Format

HOLD peripheral description

Where peripheral description specifies the drive to be unloaded.

Forbidden contexts

NOT OPERATOR, REMOTE

Execution

The command will cause a simulated hold button event which will disengage the drive when it is safe to do so. It is identical to the operator pressing the hold button on the drive.

Error Messages

PERIPHERAL DESCRIPTION PARAMETER MISSING
UNIT z CANNOT BE HELD
UNIT z IS ALREADY HELD