code&cu

Memotech RS 128

1984 · personal computer

Specifications

ManufacturerMemotech
Release year1984
TypePERSONAL COMPUTER
CPUZ80A - 4 Mhz
Memory (RAM)128KB + 16KB VRAM
ConfigurationsThe graphics capabilities are provided by the TMS9918A series video chip from Texas Instruments (same on MSX machines). The PSG is also from Texas Instruments: the SN76489A. The MTX NODDY are a interactive screen manipulation routines.
Graphics256x192@16 colors; 32 sprites
Operating SystemMTX BASIC, Assembler & MTX NODDY
Others portTwo joysticks ports, monitor output (Composite Video)
Parallel portCompatible centronics
ROM24KB
Serial portTwo ports RS-232
Sound4 channel sound (3 independent voices plus pink noise)
Storage memoryCassette
Text (Cols x Rows)40x24

About the Memotech RS 128

This is basically an Memotech MTX 512 with the added serial board, and the expansion board with 64Kb (used like RAM Disk). This two boards allow connect the FDX unit (two 5 1/4" and 500Kb floppy disk drives). The data are sent from the disk to the Disk RAM at 9600 bps. The FDX unit comes with a 80 columns card and allows the RS128 to run CP/M programs.

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