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Sistema 700
Sistema 700 was a personal professional microcomputer, introduced by the Brazilian computer company Prológica in 1981.[1][2][3][4] General informationThe machine was based on the Intertec Superbrain and had similar characteristics:[5][6] based on the Zilog Z80A 8-bit, 4MHz microprocessor, it had 64 KiB RAM configuration and two 5-1/4" floppy disk drives with capacity for up to 320 KiB of storage.[7][8][9][10] Its operating system was DOS-700, a version adapted by Prologica's software engineering department from the CP/M-80.[11][12] It achieved relative commercial success in financial, database and engineering applications. Due to the compatibility with the popular CP/M system, various applications like Fortran ANS, BASIC compiler, COBOL ANSI 74 compiler, Algol, Pascal, PL/I, MUMPS/M, RPG, Faturol C could be used. Other applications like word processors (WordStar), spreadsheets (CalcStar) and databases (DataStar and dBase II) were also compatible. Your applications could be programmed in BASIC, Cobol-80 and Fortran.[7] Models Sistema 700 (1981)Initial model announced in 1981, but never went into production (vapourware).[1] Super Sistema 700 (1981)Final version with graphite-colored cabinet and rounded contours.[1] Sistema 700 Modular (1985)In August 1985, Prológica released the third generation of the Sistema 700, named the Sistema 700 Modular. It had a larger and more durable keyboard, a built-in magnetic disk, and 10 function keys . It had 64 kilobytes of RAM and 4 kilobytes of EPROM storage. It was equipped with three microprocessors, one of which, an Intel 8035, was dedicated to controlling the keyboard. It was 10% cheaper than the previous model.[13][14][15] Data StorageData storage was done in audio cassette.[7] Audio cables were supplied with the computer for connection with a regular tape recorder.[7] AccessoriesP-720 Printer.[16] Bibliography
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