---
title: NEC PC 6001 MK 2 SR
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1984'
cpus:
- PD 780C-1
params:
  name: PC 6001 MK 2 SR
  image: /media/museum/photos/nec_pc6001mk2sr_1.jpg
  company: /companies/nec
  company_name: NEC
  specs:
  - label: NAME
    value: PC 6001 MK 2 SR
  - label: MANUFACTURER
    value: NEC
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: ? 1984
  - label: BUILT IN LANGUAGE
    value: Basic N66 & N66SR
  - label: KEYBOARD
    value: Full-stroke keyboard, JIS standard layout, 64 keys, 5 function keys, 4 cursor keys, kana letter key
  - label: CPU
    value: PD 780C-1 (Z80 clone)
  - label: SPEED
    value: 3.58 Mhz
  - label: CO-PROCESSOR
    value: 6847 et 6845 graphic chipsets, ìPD8049 (I/O management)
  - label: RAM
    value: 64 KB
  - label: ROM
    value: 32 KB (N66SR Basic) + 32 KB (N66 Basic) + 16 KB (graphic characters) + 32 KB (Chinese characters ROM) + 32 KB (optional speech synthesis)
  - label: TEXT MODES
    value: 32 x 16, 40 x 20, 40 x 25, 80 x 20, 80 x 25
  - label: GRAPHIC MODES
    value: 64 x 48, 128 x 192, 160 x 200, 256 x 192, 320 x 200 (15 colors), 640 x 200 (4 colors)
  - label: COLORS
    value: 15 colors max.
  - label: SOUND
    value: |-
      Speaker built-in, sound generator (3 voices, 8 octaves)\
      optional speech synthesizer (2 voices)
  - label: SIZE / WEIGHT
    value: 368 x 87 x 285 mm / 3.3 Kg
  - label: I/O PORTS
    value: Cartridge slot, joysticks, Centronics, printer connector, RGB video output, Sound output, RS-232c, Expansion bus, floppy disk interface
  - label: POWER SUPPLY
    value: AC100V±10% 50/60Hz, 25w
  - label: PRICE
    value: 89 800 yen (Japan, 1984)
  tabs:
  - photos
  - hardware
  photos:
  - title: SYSTEM
    subtitle: ''
    text: ''
    image: /media/museum/photos/nec_pc6001mk2sr_2.jpg
  - title: BOX
    subtitle: ''
    text: ''
    image: /media/museum/photos/nec_pc6001mk2sr_box.jpg
  hardware:
  - title: TAPE RECORDER
    subtitle: ''
    text: ''
    image: /media/museum/hardware/nec_pc6001mk2sr_tape-docs.jpg
  comments:
  - author: Hasan Salim (iraq)
    date: Thursday 12th January 2023
    text: This was my first computer. My father bought it to me back in 1990. The system includes the NEC 6001mkII computer, cassette recorder, 3.5 floppy drive, 4-color plotter, joystick, and a monitor. I learned BASIC with it and also used it later to do machine language programming on it''s Z80 processor.
  - author: Sal (NZ)
    date: Tuesday 12th May 2020
    text: |-
      Please update sound section to mention that this computer also has an FM chip and an additional 3 channels of music playback.

      Details:

      PC-6001 Mk2 SR also has an FM synth accessible in N66SR BASIC, specifically: Yamaha YM2203. It allows playback of 3 additional channels for FM instruments/sounds bringing the total to 6 channels of music playback.

      Here''s a video captured of music playback on this computer that use both PSG and FM: https://www.youtube.com/watch?v$zvVq8MHoybA

      Playing both PSG and FM was as simple as using the play command with 6 arguments: $PLAY "cde","fga","cge","@3cde","@5fga","@7cge"$

      The "@" char is used for FM channels to specify instrument out of 12 preset instruments or using a custom instrument out of a few available slots.

      Cheers
  oc_id: 394
  source:
    url: https://web.archive.org/web/20230608083532/http://www.old-computers.com/museum/computer.asp?c=394
    date: '2023-06-08'
---

This is another enhanced version of the original [PC-6001](/museum/nec-pc-6001/) and later [PC-6001 MK2](/museum/nec-pc-6001-mk-2/).

Two Basics languages (N66 & N66SR) are built-in. The computer is still compatible with the N60-Basic and N60-Extended Basic modes from the original PC-6001. The Basic N66 offers a 320x200 graphic mode (in 4 colors) and the new N66SR-Basic offers new text and graphic resolutions, the maximum being 640x200 with 15 colors.

There is a ROM holding 1024 chinese characters. The PC-6001 MK2 SR offers optional speech synthesis features.

There were 2 floppy disk drive types that were incompatible with each other, known as B and BE.

<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>