The Elliott 803 was a small computer developed by the Elliott Brothers company in the 1960s. They manufactured approximately 250 pieces and most of the universities and colleges in UK purchased some. The Elliot 803, developed in England at the beginning of the 1960s was in serial production: out of the 250 pieces manufactured, two Hungarian industrial ministries (NIM and KGM) received in 1961 and 1963 Elliott 803B type computers. These were the first computers in the country that could be programmed in a high level program language (Autocode).

The model 803 was a transistor machine with a bit-serial architecture, while the model 803B had a bit-parallel one. It had a ferrite core main memory with 4096 or 8192 words (1 ‘word’ = 40 bit) including error detecting parity bit (39+1 bit).  The CPU was placed in a single cabinet. The circuits are based on printed circuit boards, where the printed circuits are fairly simple and most of them were placed on signalling circuit conductors. The computer also had an operator control console, a telecopier and a high-speed paper tape reader (which constituted the inputs and outputs for the puncher). It was reading the tape with a speed of 500 characters / second and its punching speed was 100 characters / second.

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