[HN Gopher] The Apple-1's shift-register memory ___________________________________________________________________ The Apple-1's shift-register memory Author : kens Score : 22 points Date : 2022-04-11 21:07 UTC (1 hours ago) (HTM) web link (www.righto.com) (TXT) w3m dump (www.righto.com) | mepian wrote: | "Access was denied Error code 1020" | | Is the site blocking Russian IPs? I managed to open it with VPN. | kens wrote: | Yes, accesses from Russia are currently blocked. | kens wrote: | Author here if anyone has shift register questions :-) | bingaling wrote: | You preempted a question about the lineage from/comparison with | acoustic delay lines in footnote 2. | | Thanks for the posts :-) | Taniwha wrote: | It's worth realising that shift registers for displays were a | kind of obvious thing at the time - our mainframe had operator | consoles that used mercury delay lines for this .... | kens wrote: | Was that the IBM 2260 display station? It used sonic delay | lines, a 50-foot coil of nickel wire. Torsional pulses were | sent into the wire, and it could hold 11,008 bits. ___________________________________________________________________ (page generated 2022-04-11 23:00 UTC)