The world’s first desktop personal computer wasn’t the Apple 1 or the Altair 8800. It wasn’t even the HP 9100A, it was the Olivetti Programma 101 from 1965! Computer Teardowns don’t get much more vintage than this.

Forum:

Links:

Service manual:
Reference Manual:
In Operation:
TV Commercial from 1966:
Memory of Future with the designers:

00:00 – What was the world’s first desktop personal computer?
00:37 – The Olivetti Programma 101
01:11 – Original 1966 TV commercial for the Programma 101
05:47 – History of the Olivetti Programma 101
07:15 – Let’s have a look
11:00 – The teardown begins
11:58 – Italian design wankery from Mario Bellini
14:51 – DTL Logic modules, none of that TTL rubbish
16:52 – Removing the front panel
19:40 – The electro-mechnical goodness
21:21 – The cooling system
22:21 – The capacitor has come-a-gutsa
22:38 – The Analog Acoustic Delay Line
24:36 – Serial number
25:22 – The logic cards and the vertical construction
28:09 – Flipping out the mechanical keyboard assembly
31:17 – Conclusion