Collaborate Disseminate
[James Sharman] has built an impressive 8-bit homebrew computer. Based on TTL logic chips, it has a pipelined design which makes it capable of Commodore-level computing, but [James] hasn’t quite …read more Continue reading VGA From Scratch On A Homebrew 8-bit Computer
Homebrew 8-bit computers tend to have fairly limited displays, often one or more seven-segment displays and an array of LEDs to show the values of RAM or perhaps some other …read more Continue reading 8-Bit Computer Addresses LEDs
Making a CPU or indeed a whole computer system from scratch using discrete logic chips is by no means an unusual project, but it’s still one that requires quite a lot of technical ability and understanding of how computers work. …read more
In an announcement that came as a surprise to few, NASA now says that landing humans on the Moon by 2024 is no longer likely. Acting administrator Steve Jurczyk lays the blame at the feet of Congress, for failing to …read more
We see more computers built from logic gates than you might expect. However, most of them are really more demonstration computers and can’t do much of what you’d consider essential today. No so with [Alastair Hewitt’s] Novasaur. Although built using 34 TLL chips (and a few memory and analog chips, …read more
How do you celebrate your YouTube channel passing the 7400 subscriber mark? If you are [Low Level JavaScript], the answer is obvious: You create a 7400 TTL logic simulator in JavaScript. The gate simulations progress from simple gates up to flipflops and registers. You could probably build a 7400-based computer …read more
Here at Hackaday we cast a wary eye at tips that come in with superlative claims. Generally, if we post something that claims to be the fastest or the smallest of all time, we immediately get slapped down in the comments by someone who has done it faster or smaller. …read more
Continue reading Super-Simple VGA Adapter Sports Low-Res Output with Only Four TTL Chips
Pity the poor TTL computer aficionado. It’s an obsession, really — using discrete logic chips to scratch-build a computer that would probably compare unfavorably to an 80s era 8-bit machine in terms of performance. And yet they still forge ahead with their breadboards full of chips and tangles of wire. …read more
Continue reading Discrete-Logic UART Keeps 8-Bit TTL Computer Connected
Join us on Wednesday, June 24 at noon Pacific for the Gigatron Hack Chat with Walter Belgers!
There was a time when if you wanted a computer, you had to build it. And not by ordering parts from Amazon and plugging everything together in a case — you had to …read more
The Gigatron TTL microcomputer is an exercise in alternative history. What if, by some bizarre anomaly of invention and technology, the 1970s was not the age of the microprocessor? What if we could have had fast, high density ROM and RAM in the late ’70s, but the ability to put …read more