![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Cer20.jpg/640px-Cer20.jpg&w=640&q=50)
CER-20
From Wikipedia, the free encyclopedia
CER (Serbian: Цифарски Електронски Рачунар / Cifarski Elektronski Računar - Digital Electronic Computer) model 20 was an early digital computer developed by Mihajlo Pupin Institute (Serbia). It was designed as a functioning prototype of an "electronic bookkeeping machine".[1] The first prototype was planned for 1964.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Cer20.jpg/640px-Cer20.jpg)