338
1-bit CPU for ‘super low-performance computer’ launched – sells out promptly
(www.tomshardware.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 21 Dec 2023
338 points (98.3% liked)
Technology
59385 readers
1166 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
Funny it could sell out when it looks like 4 7400 logic chips that could be wired up on a breadboard.
Yeap, that's all it is plus the PCB and accessories. Looking at it, looks like a 74HC00 - quad NAND gates, 74HC14 - Schmitt trigger inverters, 74HC74 - A dual D flip-flop, and a 74HC153 - dual 4 input mux.
The clock isn't even a 555, just an RC circuit passed through the Schmitt trigger and the provided hardware XOR is where our NANDs come in.
It's a neat little project but I think good CPU lessons need to have a MAR/MDR/CIR and show the fetch, decode, and execute cycle. Because a lot of modern concepts derive from asking the question of "how do I optimize that?"