---
title: Sharp X1-CS (CZ-803C)
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1984'
cpus:
- Sharp Z80 A
params:
  name: X1-CS (CZ-803C)
  image: /media/museum/photos/sharp_x1cs_1.jpg
  company: /companies/sharp
  company_name: Sharp
  specs:
  - label: NAME
    value: X1-CS (CZ-803C)
  - label: MANUFACTURER
    value: Sharp
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1984'
  - label: BUILT IN LANGUAGE
    value: Unknown
  - label: KEYBOARD
    value: Full-stroke keyboard
  - label: CPU
    value: Sharp Z80 A
  - label: SPEED
    value: 4 MHz
  - label: RAM
    value: 64 KB
  - label: VRAM
    value: 48 KB
  - label: ROM
    value: 6 KB
  - label: TEXT MODES
    value: 40 / 80 x 25 (+ japanese Kanji characters)
  - label: GRAPHIC MODES
    value: 320 x 200 / 640 x 200
  - label: COLORS
    value: '8'
  - label: SOUND
    value: 3 voices PSG
  - label: SIZE / WEIGHT
    value: Unknown
  - label: I/O PORTS
    value: 2 x I/O ports, 2 x joysticks (Atari), audio out, keyboard, printer
  - label: BUILT IN MEDIA
    value: Tape
  - label: POWER SUPPLY
    value: Unknown
  - label: PRICE
    value: 119,800 yen (Japan, 1984)
  tabs:
  - photos
  - hardware
  - links
  - videos
  forum_thread: 321
  photos:
  - title: SYSTEM & BOX
    subtitle: ''
    text: ''
    image: /media/museum/photos/sharp_x1-cz803cr_box.jpg
  hardware:
  - title: 5.25 '' DISK-DRIVE
    subtitle: ''
    text: ''
    image: /media/museum/hardware/sharp_x1-cs_diskdrive_1.jpg
  - title: TOP VIEW
    subtitle: ''
    text: This original extension was at least usable with the X1 Turbo serie...
    image: /media/museum/hardware/sharp_x1_turbo_businesscardreader.jpg
  - title: I/O EXPANSION BOX
    subtitle: ''
    text: This box was used to multiply the input/output connectors and thus, possibilities of the X1 systems.
    image: /media/museum/hardware/sharp_x1_cz81ebs_1.jpg
  - title: FRONT
    subtitle: ''
    text: ''
    image: /media/museum/hardware/sharp_x1_io-box_2.jpg
  - title: BACK
    subtitle: ''
    text: This extension box offers 4 I/O ports.
    image: /media/museum/hardware/sharp_x1_io-box_3.jpg
  - title: FRONT
    subtitle: ''
    text: This extension was used to generate titles for video-tapes, among other things...
    image: /media/museum/hardware/sharp_x1_telopper-front.jpg
  - title: BACK
    subtitle: ''
    text: A lot of connectors can be found at the back of the unit...
    image: /media/museum/hardware/sharp_x1_telopper-back.jpg
  - title: FRONT
    subtitle: ''
    text: ''
    image: /media/museum/hardware/sharp_x1_tape-recorder-cz8rl1.jpg
  links:
  - title: Class X1
    url: http://www2s.biglobe.ne.jp/~ITTO/x1/x1menu.html
    text: In Japanese
  - title: Japanese Computer Emulation Center
    url: http://www.jcec.co.uk/x1games.htm
    text: Lot of games for X1
  videos:
  - title: Sharp X1 japanese commercial
    url: https://www.youtube.com/watch?v=7QxhgniF8Pg
    text: 'Length: 15 s'
  related:
  - /museum/sharp-x1-c-cz-801c
  - /museum/sharp-x1-ck-cz-804c
  - /museum/sharp-x1-cz-800c
  - /museum/sharp-x1-d-cz-802c
  - /museum/sharp-x1-turbo
  - /museum/sharp-x1-turbo-iii
  - /museum/sharp-x1-turbo-z-cz-880c
  - /museum/sharp-x1-turbo-z-iii
  oc_id: 315
  source:
    url: https://web.archive.org/web/20230601215625/http://www.old-computers.com/museum/computer.asp?c=315
    date: '2023-06-01'
---

The X1cs, as well as the [X1ck](/museum/sharp-x1-ck-cz-804c/), are derived from the [X1c](/museum/sharp-x1-c-cz-801c/). They are low price models.

The difference between X1c and X1cs, is that the X1c can be connected to a 4 colors plotter/printer, whereas the X1cs has two I/O ports instead of the plotter/printer connector.

Tape Basic and Disk Basic were available but had to be loaded from tape.

<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>