[OFF-TOPIC] Hardware history

[Robert Moskowitz]

On 11/25/25 8:08 AM, Karl Auer wrote:
> On Tue, 2025-11-25 at 20:56 +0800, Bret Busby wrote:
>>> I found my old IBM Thinkpad T42 under a pile of papers yesterday. I
>> I understand that a 36 ton T42 existed
> Very hard to justify the purchase of a 32-ton laptop. Probably not
> built by IBM. Did it have a PS/2 mouse port?

Probably pre-PS/2 port, so a serial rs-232 connection....

Same for mouse.

BTW, my first notebook was a Grid 1790.

Had various others prior to that which were not "really" notebooks. Like 
an Ericsson Plasma screen portable (circa '85).  Much better than the 
Compaq lugable.

:)

BTW, does your biplane have ADS-B out?  ;)
I am working on a proposal to ICAO for adding authentication to the 
messages as we are doing for GNSS...