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6,654 pages: 1,289 machines, 702 software, 460 companies, 64 history, 17 articles, 59 fun. 4,336 media files so far; references to files not downloaded yet are left out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
2026-10-12 07:55:22 +02:00
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+---
+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