Elektor Junior Computer

The Elektor Junior Computer was a simple 6502-based microprocessor development board published in the 1980s in the Dutch, German and later French, Spanish, British and Indian versions of Elektor/Elektuur, in the form of a series of articles and four books.

It was developed by the German engineer Loys Nachtmann.

The Junior Computer was a virtual clone of the KIM-1, only it did not use the special I/O+ROM chips (MCS6530) but rather an off-the-shelf 6532 RIOT and a 2708 1K EPROM.

Later extension boards were developed, and a BASIC interpreter was ported.

Elektor expansion boards specifically for the Junior were an I/O interface card (including a 6522 VIA, a tape recorder interface and a RS-232 port), a VDU (video terminal) (an improvement of the previous "elekterminal" design), an EPROM and SRAM expansion board, a 16/64 KB DRAM board and EPROM programmer board, and a floppy disk controller, as well as a dozen smaller boards for small improvements and interfaces.