Skip to main content
  1. Home
  2. Computing
  3. Emerging Tech
  4. Gaming
  5. News

High school grad builds 8-bit computer from scratch, complete with custom OS and Pong

Add as a preferred source on Google
homemade-8-bit-computer-by-jack-eisenmann
Image used with permission by copyright holder

You think you’re smart? Well, not as smart as this guy. Jack Eisenmann, a programmer who just graduated high school, has built his own 8-bit homebrew computer completely from scratch using an old keyboard, a television, and a ton of TTL logic chips. No, he didn’t buy some computer parts and snap them together; he blueprinted every wire and connection and then built it, wire by wire. After he finished construction, he had to teach it how to communicate, so he created his own operating system and wrote some games for it. That’s dedication.

The new computer is called the Duo Adept and has specs that could be dwarfed by a NES, but it gets the job done. The computer has 64K of memory, 6K of which is dedicated video RAM needed to output a 240×208 black and white image. Since writing a basic hex editor for the Duo Adept, he’s taught it how to count to a googel, and programmed several games including Pong, Life, and a Donkey Kong-like game called “Get Muffin,” where you must get the muffin to win (tip: it’s up the ladder).

Recommended Videos

To learn more about Jack’s homebrew computer, watch the video below and head to his Duo Adept site. Thanks to PC Mag’s Lance Ulanoff for the link.

Jeffrey Van Camp
As DT's Deputy Editor, Jeff helps oversee editorial operations at Digital Trends. Previously, he ran the site's…
Claude is getting ambitious with watermarking, and I can smell the problems from a mile away
Claude’s text watermark could flag AI involvement even when it only helped with translation or editing
Claude website open on laptop

Anthropic wants to make AI-generated text easier to identify, and on paper, I have very little reason to complain. The company is experimenting with an invisible watermark that can be baked directly into text generated by Claude.

It sounds like a sensible idea. AI-generated text is everywhere, and knowing where something came from could certainly help. Moreover, Anthropic isn't simply hiding a marker somewhere inside a document. Its approach changes how Claude selects words to create a statistical pattern that can later be detected.

Read more
I switched from Windows to Mac after 25 years, and it’s the trackpad that converted me.
Well, that rhymes.
Computer, Electronics, Laptop

I’ve been using Windows laptops for almost 25 years. In that time, I never once seriously thought of buying a MacBook. In fact, I can honestly say I had never used one at all until I bought my MacBook Air M5 six months ago. Never borrowed one for a weekend, spent an afternoon at an Apple Store, or even played with one at a friend's house. Macs, to me, were just expensive computers for those who edited videos, made logos, or liked drinking expensive coffee.

My change came completely by accident.

Read more
Apple’s latest refurb drop brings cheaper MacBooks, iPhone 16 Plus, and Apple Watches
More M5 MacBook Air and Pro models are now available through Apple’s refurbished store
Computer, Electronics, Laptop

Apple has added several new MacBook Air and MacBook Pro configurations to its Certified Refurbished Store, alongside more iPhone 16 Plus models and Apple Watches.

The MacBook Air additions arrive at a particularly useful time. New M5 MacBook Air models are currently running in short supply across Apple’s retail network, with some configurations facing delivery estimates stretching into late August or September. Apple also raised MacBook Air prices in June, so students shopping before the new school year are being asked to spend more while potentially waiting longer to get one.

Read more