--- title: NEC PC 9801 F categories: - Computers types: - Home Computer origins: - Japan years: - '1983' cpus: - i8086-2 params: name: PC 9801 F company: /companies/nec company_name: NEC specs: - label: NAME value: PC 9801 F - label: MANUFACTURER value: NEC - label: TYPE value: Home Computer - label: ORIGIN value: Japan - label: YEAR value: '1983' - label: KEYBOARD value: Full-stroke keyboard with separated numeric keypad and arrow keys - label: CPU value: i8086-2 - label: SPEED value: 8 or 5 Mhz - label: RAM value: 128 kb (up to 640 kb) - label: VRAM value: 204 kb - label: ROM value: N88-Basic + Kanji - label: TEXT MODES value: 80x25 , 40 x 25 , 80 x 20 , 40 x 20 - label: GRAPHIC MODES value: 640 x 400 with 8 colors. 2 virtual screens - label: COLORS value: '16' - label: SOUND value: One channel beeper. Built-in internal speaker - label: I/O PORTS value: C-Bus - label: BUILT IN MEDIA value: 2 x 5''1/4 disk-drives - label: OS value: MS-DOS , N88-Disk Basic (extended Basic for control FDD) oc_id: 404 source: url: https://web.archive.org/web/20230602175506/http://www.old-computers.com/museum/computer.asp?c=404 date: '2023-06-02' --- The PC-9801 was a very popular PC in Japan. PC-9801's design was very similar to IBM-PC, but was slightly extended. VRAM (Video RAM) is strongly extended from original IBM-PC, enabling it to display kanji characters without bitmap memory (as ASCII characters). But I/O systems, Interrupt systems are almost the same. There were in fact three models : F1, F2 and F3. Whereas F1 & F2 models have only 128k RAM, the F3 had 256 kb RAM and 10 Mb hard-disk built-in. More info anyone ? --- Thanks to Nomura Hisayuki for the info