Build an 8-Bit Home Computer With 5 Chips

  • 21st Apr'21
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Computers have existed a long time ago as compared to the transistor in a mechanical and theoretical manner. The actual definition of a computer was deemed up by a very intelligent person by the name of Alan Turing. He called a machine that was termed the Turing Machine. Every computer that we use now, from the PC or smartphone that you are reading this on to supercomputers all can be categorized as a Turing Machine at their most simple level.


8 bit computer


There’s one thing persistently appealing about 8-bit computing is that you can put together a self-contained system that’s powerful enough to be user friendly however easy enough to create and program all by yourself. Most 8-bit machines engineered by hobbyists nowadays are powered by a classic central processing unit from the heroic age of home computers within the 1980s, once immeasurable spare TVs were commandeered as displays. 


What are the Requirements?

Clock module.


Arithmetic logic unit (ALU)

Random access memory (RAM) module.

Program counter.

Output register.

Bringing it all together.

CPU control logic.

A power supply

Breadboards + lots of wires

LED's for output


Digital multimeter

EEPROM programmer

Sonic screwdriver


Must Read - The Evolution Of A GPU: From Gaming To Computing


To know more on the construction of 8 bit computer, refer to:

How to Build an 8-Bit Computer by spel3o: 

Building an 8-bit TTL computer sounds like a daunting and complicated task, or at least it did to me when I started out on my journey to understand the architecture of a basic CPU. Read More 

Build This 8-Bit Home Computer With Just 5 Chips: 

There’s something persistently appealing about 8-bit computing: You can put together a self-contained system that’s powerful enough to be user friendly but simple enough to build and program all by yourself. Read More


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Contributor: Sudeshna Dutta

Sudeshna is an engineer in making. She is a writer at OpenGrowth. Apart from dealing with circuits and chips, she is passionate about being a keyboardist and pianist and wants to attain professionalism in it with her talent coupled with hard work.


*Note: The content published above was made in collaboration with our members.

About the author:

Kumar Amritanshu (Editor), Super admin

Amritanshu, a geek, an explorer, traveler and innovative creator by heart. Experimenting with new ideas and exploring innovative technologies are his break-through talent. Endless craze for technology and creativity. Associated with editorial team at OpenGrowth and keenly serving great stuff from startup world.

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