Abacus

Abacus was the first spreadsheet package written by Psion and packaged with the Sinclair QL home computer. The US version of the software was simply called 'Spreadsheet'

Abacus used the same friendly menu driven interface familiar to users of the other Psion business programs, Quill, Archive and Easel and you could import data between all four programs.

Abacus can handle complex equations and large amounts of data, although it has since been superceded by QSpread as spreadsheet programs have turned into much more complex programs offering a much wider range of functions.

Abacus was developed originally on a VAX mainframe in 1983. Tested on some of the in-house 'rack-based' development versions of the QL, the software had to be reduced in size using a 'table-language' developed by Psion, in order to ensure that the programs could fit within the QL's memory and microdrive cartridges.

In common with the other Psion business programs, the main problem with Abacus was that it grabs all of the QL's available memory, thus making it difficult to multi-task with the other programs (even on expanded systems). This was resolved by programs such as CHOice and QL Switch.

Abacus was also included as part of the Xchange package.

v2.00 of the software was released in March 1985, which was programmed in native 68000 machine code, providing a much needed speed boost and leaving more room in memory.

Title: Abacus
Language: 68000 Machine Code
Author: Unknown
Publisher: Psion
Year of Publication: 1984
Platforms Suitable for: All Sinclair QLs and emulators
Price in October 1984: free - bundled with the QL
Reviewed: Unknown
Sources Available from: n/a
Latest Version available from: Sinclair QL Homepage