Keeping old computers and electronics alive

Acorn Atom

The Acorn Atom is a home computer made by Acorn Computers Ltd from 1980 to 1982, when it was replaced by the BBC Micro. The Micro began life as an upgrade to the Atom, originally known as the Proton.

The Acorn Atom – Introduction

December 22, 2022

The Acorn Atom was my first “Personal computer”, a computer with a real keyboard, and video display (well actually an old portable B&W TV). All I could effort was the basic version, 2K of Memory, no floating point ROM, no printer interface (6522). For many years my own Acorn Atom ended up in a junk… read more »

Stripping Atoms

December 22, 2022

As my 2 Acorn Atom boards were in a quite bad state, and I got a hold of a desoldering station that worked pretty well I decided to strip both boards “to the bone”, and rebuild them with high-quality IC-sockets, low profile crystals etc. (Board images are clickable for Hi-Res).

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AT89C51-8051-8031 SBC
by bprosman
December 27, 2022
Inspired by an old Elektor (Dutch elektronics magazine) design. I designed a new Eurocard form factor design, with buffered outputs , RAM , EEPROM so that it can also fit the 8051 and 8031’s (ROMless).
NDR School television episodes (26)
by bprosman
December 22, 2022
0. Microelectronics - Introduction of the NDR "Klein" computerThomas Naumann and Rolf-Dieter Klein introduce the capabilities of the NDR "Klein" computer and the contents of the 26 episodes. (In German).
RetroSys2019 references
by bprosman
December 22, 2022
NDR Kleincomputer by Rolf-Dieter Klein (For those who speak German) : http://www.ndr-nkc.de/compo/index.htm RC2014 Site : https://rc2014.co.uk/
The Acorn Atom – Introduction
by bprosman
December 22, 2022
The Acorn Atom was my first “Personal computer”, a computer with a real keyboard, and video display (well actually an old portable B&W TV). All I could effort was the basic version, 2K of Memory, no floating point ROM, no printer interface (6522). For many years my own Acorn Atom ended up in a junk... read more »
Stripping Atoms
by bprosman
December 22, 2022
As my 2 Acorn Atom boards were in a quite bad state, and I got a hold of a desoldering station that worked pretty well I decided to strip both boards “to the bone”, and rebuild them with high-quality IC-sockets, low profile crystals etc. (Board images are clickable for Hi-Res).