IBM keylocks for PC and XT

[modem7]

An IBM option for the IBM PC and IBM XT was a keylock, that fits over the power supply switch.
* The key controls the powering off/on of the computer.
* The keylock can only be fitted/removed when the key is in the ON position.
* The keylock prevents the computer from being opened.

A few keylocks are on eBay presently at eBay item 300380110609. I am not connected in any way to the sale.

 

[kishy]

Interesting for sure...though I think the term "keylock" is more accurately applied to "locks which disable the use of the keyboard" that just so happen to have a physical key.

Neat find, I'm guessing it works just by flipping the switch as the key turns?

 

[modem7]

Interesting for sure...though I think the term "keylock" is more accurately applied to "locks which disable the use of the keyboard" that just so happen to have a physical key.

I consider "keylock" to be simply a lock activated by a physical key, irrespective of whether the lock controls physical access, or keyboard, or power, or whatever. In the early 80s, my CP/M computer had a keylock to power it on/off.

Neat find, I'm guessing it works just by flipping the switch as the key turns?

Yes (I know because I already have one of these locks).

 

[mbbrutman]

I have one two of these as well - one was installed and one was in the box. It is a rare option, and should remain as such. ;-0

 

[paul]

Does this also lock the line cord in place?

 

[modem7]

Does this also lock the line cord in place?

Yes.

Note also that the key cannot be removed when the lock is in the ON position.

 

[Chuck(G)]

Nothing that can't be defeated with an oxyacetylene torch.

 

[Chuck(G)]

I consider "keylock" to be simply a lock activated by a physical key, irrespective of whether the lock controls physical access, or keyboard, or power, or whatever. In the early 80s, my CP/M computer had a keylock to power it on/off.

My MAD box uses a multi-position key to turn it on or off, or to disable the keyboard or reset the system. And you can't remove the case top unless the system is powered off.

 

[Raven]

Anyone who buys these and installs them, please be careful to keep the key(s) with the machine, tape the key to the outside of the case when storing it, etc. - don't let the machine fall into someone else's lap without a key down the line - it's a very unfortunate experience.

 

[paul]

Well, not to worry, a disk tumbler lock like that is easily picked.

 

[antiquekid3]

Nothing that can't be defeated with an oxyacetylene torch.

Or, even better...a thermal lance! :-D

Kyle