Elektronika MS 1504
Elektronika MS 1504, initially called PK-300, was the first laptop computer to be manufactured in the Soviet Union, BSSR, then in Belarus, after the collapse of USSR. Developed in 1986-1990 by Nemiga Design Bureau, it was produced by the "NPO Integral" Scientific Production Association in 1991-1993, its prototype was Toshiba T1100 Plus.
Technical specifications
- Compatibility: IBM PC/XT
- Central processor: Integrated KR1834VM86 at a clock frequency of 4.77 MHz and 7.16 MHz in Turbo mode
- Processor bit depth: 16 bit
- Data bus width: 8 bits
- Memory: RAM - 640 KB, VT-34 RAM Controller consists of 20 KR565RU11D microcircuits; ROM - 32 KB
- Storage: 5.2", 3.5" FDD or 10MB HDD
- Video controller: CGA
- Display: domestic IZhG93-640x200 LCD matrix
- Operation System: MS DOS 3.2/3.3
- BIOS: Russian
- Dimensions: 306x312x68 mm
- Gross weight: 6 kg
- Power supply: 5V Nickel-Cadmium battery or 220V/50Hz direct supply
Interfaces
- Parallel interface: IRPR-M/IEEE-1284 according to
- Serial interface: C2 joint according to
- Interface for connecting an external multi-color monitor according to
- Interface for connecting an external single-color monitor according to
- Possibility of connecting an external 5.25" drive with a capacity of 360 KB
- Controller for two 3.5" or 5.2" disk drives with a capacity of 720 KB and 360KB each
Modifications
There were three computer modifications: with a domestic display module based on the IZhG93-640x200 LCD matrix manufactured by the Saratov Electronic Plant "Reflector", as well as with compatible display modules from Toshiba and Citizen. Each of these modifications had two versions: with a display without backlighting and with backlighting, both with adjustable contrast. Externally, the backlit version was distinguished by a thicker cover and a smaller screen diagonal.Models
- PK-300
- PK-310 - PK-300 modification with a HDD.