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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

content/museum/nec-pc-6001-mk-2-sr.md

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+---
+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
+  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: null
+  - title: BOX
+    subtitle: ''
+    text: ''
+    image: null
+  hardware:
+  - title: TAPE RECORDER
+    subtitle: ''
+    text: ''
+    image: null
+  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>