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A computer is a machine that uses electronics to input, process, and then output data. Input of data means to read information from a keyboard, a storage device like a hard drive, or a sensor.
The computer processes or changes the data by following the instructions in software programs. A program is a list the steps for doing arithmetic, comparing data, and re-arranging data.
The data is then saved in a storage device, shown on a display, or sent to another computer.
Computers can be connected together to form a network such as the internet, allowing the computers to communicate with each other.


Why millions of usable hard drives are being destroyed

Published 6 June 2023

The unbelievable zombie comeback of analog computing

By Charles Platt, published Mar 30 2023
Computers have been digital for half a century. Why would anyone want to resurrect the clunkers of yesteryear?
From semiconductors to surveillance cameras, hardware still rules the world and shapes the future
Bringing back analog computers in much more advanced forms than their historic ancestors will change the world of computing drastically and forever

Making computer chips act more like brain cells

By Kurt Kleiner, published 08-25-2022
Flexible organic circuits that mimic biological neurons could increase processing speed and might someday hook right into your head

My computer is my home

We spend a lot of our lives in our computers. We live in our computers, and we do little things to make ourselves feel more at home in them - a little more cozy.
We change the wallpaper, install some new apps, buy a pretty case and some stickers for the back. We personalize what we can, what we’re permitted.
Linux… With each improvement, I feel more at home, and there is no limit to what I can do… By Andrey Petrov:

Exploring what sort of computing can be done on paper

Other links

Computer hardware

Cheap mini computers

All of them have accessible prices.

Not-cheap mini computers

Sustainable computers

Portable gaming consoles

Alternatives to Nintendo Switch, PlayStation Vita.

open-source, miniature game system the size of a credit card

educational DIY Game Console

GameShell hackable modular, portable gaming console

tiny, open-hardware, ESP32-powered retro-gaming console

Mudita Pure fair trade and ethical phone

tiny handheld game system; has a crank;

pocket operators are small, ultra portable music devices, with studio quality sound

PO-20 arcade synthesizer and sequencer


Group buys

Component shops


robotics & electronics


buy awesome things directly from makers