Luxor ABC
ABC 806  (1981)
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Luxor ABC-806

The ABC 806 is a more advanced version of the luxor ABC 800. It features a main board, with a separate screen and keyboard. The memory has been upgraded to 164kByte RAM, with 128 kByte as RAM disk. The graphics have been upgraded as well with a maximum resolution of 512x240 in 16 colors.

The BASIC supplied with the ABC machines is a semi-compiling basic, many routines are compiled to machine language before executing, and the interpreter as a whole is faster than most other BASICs used in popular machines of that time, especially when integer variables are used. The Luxor easily outperforms the IBM PC, the Apple III, the Vic-20 and the ZX81 in "fast mode".

CPU - The Zilog Z80

The Z80 quickly became popular in the personal computer market, with many early personal computers, such as the TRS-80 and Sinclair ZX80, using the Z80 as their central processing unit (CPU). It was also widely used in home computers, such as the MSX range, SORD, and the Amstrad CPC, as well as in many arcade games. Additionally, it was also used in other applications such as industrial control systems, and embedded systems. The Z80 was widely used until the mid-1980s, when it was gradually replaced by newer microprocessors such as the Intel 80286 and the Motorola 68000.

The Z80 microprocessor was developed by Zilog, a company founded by Federico Faggin in 1974. The Z80 was released in July 1976, as a successor to the Intel 8080. It was designed to be fully compatible with the 8080, but also included new features such as an improved instruction set, more powerful interrupts, and a more sophisticated memory management system.

Originally the Z80 was intended for use in embedded systems, just as the 8080 CPU. But the combination of compatibility, superior performance to other CPUs of the era, and the affordability led to a widespread use in arcade video game systems, and later in home computers such as the Osborne 1, TRS-80, ColecoVision, ZX Spectrum, MSX, Sega's Master System and many more. The Z-80 ran the original Pac-Man arcade cabinet. The Z-80 was used even in the Game Gear (1990s), and the TI-81 and succeeding graphic calculators.

The Z-80 remained in production until June of 2024, 48 years after its original release. Zilog replaced the processor with its successor the eZ80, an 8-bit microprocessor that features expanded memory addressing up to 16 megabytes, and running up to 50MHz, comparable to a Z80 clocked at 150MHz.

Technical Details
Released
1981
Country
Sweden
Brand
Luxor
Type
Luxor ABC
Name
ABC 806
CPU Class
Z80
CPU
Z80 @3.58MHz
Memory
RAM: 164k
ROM: 32kb
VRAM: 16kb Shared
128kB is reserved as RAM disk
Sound Chip
unknown
Sound
Beeps
Display Chip
unknown
Display
80x24 4bpp
240x240 2bpp
256x240 4bpp
512x240 4bpp
Best Text
80x24 color
Best Color
16 colors (4bpp)
Graphics
512x240
Sprites
no sprites
System OS
BASIC
External Links 🌐
Z80 CPU
Wikipedia page on the very popular Z80 8-bit CPU used in many computers of the 1980's era.