One of the first microcomputers ever made

First laptop Superbrain 3

The Intertec Superbrain

was one of the first all-in-one commercial microcomputers first sold by Intertec in 1979. The machine ran the operating system CP/M with Microsoft Basic, an 8080 assembler and Microsoft Cobol 74. The Superbrain was an integrated system with keyboard, display and disc drives. The system used two Z80A microprocessors at 4 MHz, one for the main processing, and the other for peripheral activities. The dual 5″ floppy disc units could be 2×170 KB (single side), 2×340 KB (DS), and a 10 MB CompuStar hard disk could be added. In 1983, the basic machine sold for about $2000. The Superbrain is notable for being at the user end of the first Kermit connection in 1981. The machine was practical and useful in the office environment, but somewhat limiting until the arrival of the first 5MB hard disks in one of the floppy drive bays. This was soon replaced by the 10MB Winchester thus effectively removing all limitations on what could be programmed and stored. The SuperBrain II appeared in 1982. It offered a faster and enhanced disk operating system, new video visual attributes and better graphics capabilities. Specifications: Construction: Single unitFirst laptop Superbrain 3 Microprocessors: Two Zilog Z80s (one for CPU, one for I/O) Word size: 8 bits Execution time: 1.0 microseconds register to register Machine instructions: 158 Interrupt mode: All interrupts are vectored and reserved Disk drives: Two 5.25″ 180KB floppy drives Memory: 32KB + 1K static RAM + 2K ROM Screen: 12″ diagonal 24×80 chars, 5×7 character matrix Serial interface: Two RS-232 max speed = 9600bps Character set: ASCII (128 characters) Software: CP/M 2.2, 8080 assembler, debugger, text editor, PIP Weight: 45 pounds Dimensions: 14.6″ x 21.4″ x 23.1″
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