https://blinkingcomputer.org/ 2026-04-14T14:14:05+00:00 https://blinkingcomputer.org/ https://blinkingcomputer.org/_media/favicon.ico text/html 2023-03-02T07:43:18+00:00 admin (admin@undisclosed.example.com) https://blinkingcomputer.org/home?rev=1677742998&do=diff The Blinking Computer The Blinking Computer will be an easy-to-build educational computer. As the name suggests, the idea is that you can write code and see it execute at every level, that means discrete components and lots of LEDs. The design has evolved very many times since my Prof forbid me from canablising the old departmental Strowger switch telephone exchange in the late 1980's. Right now there are 32 words of RAM and the program memory is a tape loop, just like text/html 2022-04-26T09:20:42+00:00 admin (admin@undisclosed.example.com) https://blinkingcomputer.org/weird_memory_cells?rev=1650964842&do=diff Weird Memory Cells I like the idea of 'shift register' memory because then I can use a 1 bit ALU which keeps things very simple. Here are all the weird ideas I've thought about for shift register memory: Acoustic tube If 32 bits wer stored in a 2m tube then that's just over 6cm a bit. Let's assume that's six wavelengths, so one is 0.01m and with the speed of sound at 340m/s that makes 34kHz or thereabouts. This seems just about possible, it's in the range of acoustics I know a little bit a… text/html 2021-11-26T10:50:48+00:00 admin (admin@undisclosed.example.com) https://blinkingcomputer.org/?image=favicon.ico&ns=&rev=1637923848&tab_details=history&mediado=diff&do=media text/html 2021-11-26T10:50:14+00:00 admin (admin@undisclosed.example.com) https://blinkingcomputer.org/?image=favicon.png&ns=&rev=1637923814&tab_details=history&mediado=diff&do=media text/html 2021-11-26T10:36:47+00:00 admin (admin@undisclosed.example.com) https://blinkingcomputer.org/?image=logo.png&ns=&rev=1637923007&tab_details=history&mediado=diff&do=media <img src="https://blinkingcomputer.org/_media/logo.png?w=64&h=64&t=1637923007&amp;tok=5d4a72" alt="logo.png" />