The LuxorABC 800 series are office-versions of the ABC 80home computer. They featured an enhanced BASIC interpreter, a slightly faster clocked CPU and more memory: 32 kilobytes RAM and 32 KB ROM was now standard, the Z80 is clocked at . It featured 40×24 text mode with eight colors or 80×24 text mode monochrome. They could also be extended with "high" resolution graphics using RAM as video memory. The ABC 800 came in a monochrome version with amber text on a brown background with an 80 character wide screen, and a color version with 40 characters. The main board is integrated with the keyboard much like the Amiga 500. However the ABC computer has a very sturdy metal chassis. Storage is usually two 5.25" floppy disk units in 160, 320 or 640 KB capacity. External hard disk systems became available later. Model numbers 'ABC 800 M' for monochrome and 'ABC 800 C' for color. "Who needs IBM-compatibility?", asked Luxor's adverts. However, most computer buyers eventually considered it a requirement. A certain compatibility could be achieved between the ABC-world and the IBM PC-world with the help of a program called 'W ABC'. The ABC 800 computer was also sold by Facit by the name Facit DTC.
ABC 802
The ABC 802 is a compact version with 64 KB RAM where 32 KB is used as a RAM disc. The main board is integrated with a 9" CRT screen and has improved graphics, though no high-resolution graphics. Luxor ABC 802 was a model with a small monochrome screen in yellow phosphor, intended for offices. Here with two 5.25 inch disk drives along the side of the display. The grey-brown color was common for all ABC 800 products and was different from the beige ABC 80.
ABC 806
The ABC 806 is a version with main board, screen and keyboard as separate units. It has RAM where is used as a RAM disk, as well as more advanced 512x240x16 graphics.
Performance
In order to see how the ABC 800 would compare to other contemporary personal computers, in 1982, the Swedish magazineMikroDatorn performed a "benchmark" test using eight short BASIC programs defined by the AmericanKilobaud Magazine and routinely used by the British magazine Personal Computer World for testing new machines. The result was that ABC 800's semi-compiling BASIC interpreter turned out to be faster than most other BASICs used in popular machines, especially when integervariables are used, the results for some well known computers were as follows : BM1 BM2 BM3 BM4 BM5 BM6 BM7 BM8 ABC 800 not measured - see ABC 80 for approximate numbers ABC 800 0.9 1.8 6.0 5.9 6.3 11.6 19.6 29 ABC 800 1.2 2.2 10.0 10.6 11.0 17.8 26.4 144 IBM PC 1.5 5.2 12.1 12.6 13.6 23.5 37.4 35 Apple III 1.7 7.2 13.5 14.5 16.0 27.0 42.5 75 VIC-20 1.4 8.3 15.5 17.1 18.3 27.2 42.7 99 ZX81 in "fast mode" 4.5 6.9 16.4 15.8 18.6 49.7 68.5 229 As seen from the table, the ABC 800 was approximately twice as fast as the IBM PC on floating point calculations, except for BM8 where it was only 20% faster. Using integer variables the numbers would be approximately 2-3 times as low as for the single precision results in the table.
