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Latest Tweets | Dan Schreiber (Retweet) | Tue Apr 16 09:42:37 |
Happy birthday #SpikeMilligan. Forever on my bookshelf and toilet wall. Would have been 101 today.
 | Binary Dinosaurs | Mon Apr 15 23:12:56 |
Some good news.
| Binary Dinosaurs | Mon Apr 15 18:31:34 |
Tonight’s task is getting to the bottom of the keyboard scanning on my Tandata PA. Time to break out the logic analyser!
 | Ken Shirriff (Retweet) | Mon Apr 15 16:16:34 |
In the 1960s, mainframe used core memory for storage; 128 kilobytes filled a large cabinet and weighed 610 pounds. Core memory consisted of tiny ferrite cores on a wire grid. By 1970, IBM produced 20 billion cores a year. I examine an IBM S/360 core array:
End of TweetsAll images and text © Adrian Graham 1999-2019 unless otherwise noted using words. Also on 
