Figure 1-5: Keylock And Two Security-Lock Keys - Datatech Enterprises Apex 386SX/20 User Manual

Keylock
The keylock enables or disables the keyboard. In the unlock mode the
keyboard is activated. In the lock mode the keyboard is disabled to
deny unauthorized users access to the computer.

Figure 1-5: Keylock and Two Security-Lock Keys

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Chapter 1: System Overview