Mera-Elzab Meritum
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File:Meritum I computer.jpg
Meritum I
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| Type | Home computer |
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| Release date | 1983 |
| Operating system | Meritum BASIC |
| CPU | U880DA @ 2.50 MHz |
| Memory | 16 KB (base)—64 kB (max.) |
The Meritum was a Polish home computer esteemed as the forerunner of the Polish computer industry and the first home computer produced in Poland. Nevertheless, the machine was really a clone of the TRS-80 Model I (with a Polish BASIC Level II version in ROM). Mera-Elzab made two versions of Meritum and a third was announced and exhibited in a computer fair in 1986, but was never produced (vapourware).[1]
Contents
Meritum I
The Meritum I was launched in 1983, with 16 KB of RAM, text mode of 32×16 lines, and semi-graphic (32×16, 64×16 or 128×48 pixels); monochromatic display and limited expansion capabilities.
Meritum II
The Meritum II was launched in 1985 with 48 KB of RAM (expansible to 64 KB). Besides the semi-graphic modes with four colours (32×16 and 64×16 pixels), it had two graphical modes (256×192 pixels (4 shades of gray) and 512×192 (monochrome). The machine could use 5" 1/4 drives, with options to MER-DOS or CP/M 2.2.
Technical specifications
| CPU | U880DA @ 2.50 MHz |
| RAM | 16 KB (base)—64 KB (max.) |
| VRAM | 1 KB |
| ROM | 14 KB |
| Keyboard | mechanic, 57 keys, cursor keys |
| Display | text: 32×16; semi-graphics (Meritum I): 32×16, 64×16 or 128×48 pixels and graphics (Meritum II): 256×192 pixels (4 shades of gray) and 512×192 pixels (monochrome). |
| Sound | buzzer |
| Ports | tape recorder port, parallel port, serial port, external drive port (Meritum II). |
| Storage | tape recorder (500 bauds) or external 5" 1/4 drive |
See also
References
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<references />, or <references group="..." />External links
- Mera-Elzab Meritum I. Accessed on April 4, 2008.(Polish language)
- Mera-Elzab Meritum II. Accessed on April 4, 2008.(Polish language)
- ↑ Meritum at old-computers.com. Accessed on April 4, 2008.
