IBMS

Sun, 3 Sep '23

"Big Blue" machines

Mon, 13 Mar '23

Many early PCs

Sun, 8 Jan '23

ThinkPads, e.g., once

Sun, 8 May '22

Some old PCs

Sun, 10 Apr '22

Many mainframes

Sat, 26 Mar '22

Watson and others

Tue, 6 Jul '21

Some old PCs

Fri, 22 Jan '21

Many mainframes