RARE RETRO MICRO COMPUTER 1979 NEC PC-8001 COMPLETE 1 999 € EN FRANCE

RARE Retro Micro Computer 1979 NEC PC-8001 Complete The PC-8001A was released in the United States in August 1981, and its price was 1,295 US dollars (32 KB of RAM). It is modified to reduce electromagnetic interference in order to comply with FCC regulations. Katakana glyphs in the ROM character (see JIS X 0201) are replaced by the Greek alphabet Specification The PC-8001 has a NEC μPD780C-1 (Z80 compatible processor) clocked at 4 MHz, 16 KB of RAM (extendable to 32 KB), a CRT video output, a cassette port, a parallel port for a printer, a serial port and an extension bus. The built-in BASIC interpreter, called N-BASIC, adapts to 24 KB of ROM. It is a variant of Microsoft Disk BASIC 4.51. Optional DISK BASIC allows disk I/T for an external floppy drive. The video output is provided by a μPD3301 CRT controller and a μPD8257C (Intel 8257 clone) DMA controller. It has different text modes, and the maximum screen is 80×25 text with an 8×8 pixel font. Each character has two attributes chosen from flashing, highlighting, inverted, secret, vertical, above the line, under the line and RGB colors, and up to 20 different attributes per line can be defined. Attribution also supports semigraphs, and each character has a 2×4 matrix. The PC-8011 expansion unit provides additional capabilities and interfaces, which has 32 KB RAM jacks for μPD416 DRAM, 8 KB ROM jacks for 2716 PROMs, a break controller, interval timer, serial port, floppy drive controller, parallel port and IEEE-488 port. The original floppy disk drives for the PC-8001 are the dual-unit PC-8031 and the additional dual-unit PC-8032, which use a single-sided 5.25-inch format of 143 KB. They were followed by the single-unit PC-8031-1V, the double-sided PC-8031-2W and the PC-8032-2W. These units are connected to the PC-8001 via the PC-8011 or the PC-8033 adapter. En savoir plus Collaboration commerciale.