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

content/museum/czerweny-cz-1000-plus.md

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+---
+title: Czerweny CZ-1000 Plus
+categories:
+- Computers
+types:
+- Home Computer
+origins:
+- Argentina
+cpus:
+- Zilog Z80A
+params:
+  name: CZ-1000 Plus
+  company: /companies/czerweny
+  company_name: Czerweny
+  specs:
+  - label: NAME
+    value: CZ-1000 Plus
+  - label: MANUFACTURER
+    value: Czerweny
+  - label: TYPE
+    value: Home Computer
+  - label: ORIGIN
+    value: Argentina
+  - label: YEAR
+    value: august 198?
+  - label: BUILT IN LANGUAGE
+    value: Sinclair Basic
+  - label: KEYBOARD
+    value: Chicklet keyboard (ZX Spectrum style), 40 keys
+  - label: CPU
+    value: Zilog Z80A
+  - label: SPEED
+    value: 3.5 MHz
+  - label: CO-PROCESSOR
+    value: Ferranti ULA in the 'grey' version
+  - label: RAM
+    value: 2 KB
+  - label: ROM
+    value: 8 KB
+  - label: TEXT MODES
+    value: 32 x 24 (but 2 lines are reserved for system messages and commands)
+  - label: GRAPHIC MODES
+    value: 64 x 44
+  - label: COLORS
+    value: Black and white
+  - label: SOUND
+    value: None
+  - label: SIZE / WEIGHT
+    value: Unknown
+  - label: I/O PORTS
+    value: Expansion bus (Z80 bus), tape interface, RF video output
+  - label: POWER SUPPLY
+    value: External AC adaptor
+  - label: PRICE
+    value: Unknown
+  tabs:
+  - photos
+  - hardware
+  - emulators
+  - links
+  - docs
+  photos:
+  - title: CZ-1000 PLUS
+    subtitle: ''
+    text: Thanks to Nestor Zangoni for this picture
+    image: null
+  - title: GREY PANEL VERSION
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: null
+  - title: CASE LOGOS
+    subtitle: ''
+    text: Thanks to **Gustavo Mariani**
+    image: null
+  - title: BLACK-KEY AND GREY-KEY VERSIONS
+    subtitle: ''
+    text: Thanks to **Gustavo Mariani**
+    image: null
+  - title: REAR CONNECTORS
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: null
+  - title: INSIDE
+    subtitle: ''
+    text: |-
+      The black-key version used same chips as the original ZX-81:\
+      • 6116 2 Kb RAM chip\
+      • 2764 8 Kb ROM holding the BASIC interpreter\
+      • Zilog Z80 processor\
+      • Ferranti ULA custom chip.
+
+      Thanks to **Franco Girardi** from Argentina
+    image: null
+  - title: THE BOX
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: null
+  - title: THE BOX - REVERSE SIDE
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: null
+  - title: COMPLETE SYSTEM
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: null
+  hardware:
+  - title: 64 KB
+    subtitle: from Suntroncis
+    text: Suntronics T/S 1000 & ZX81 64K Memory Pack (Male Socket on Back, Female Socket on Front).
+    image: /media/museum/hardware/timex_1000-suntronics-64k_1.jpg
+  - title: TIMEX SINCLAIR 1016
+    subtitle: 16k RAM extension
+    text: ''
+    image: /media/museum/hardware/timex_sinclair-1000_16kram-1016.jpg
+  emulators:
+  - title: EightyOne
+    url: http://www.chuntey.com/eightyone/
+    platform: Windows
+    text: Excellent emulator emulating nearly all ZX computers (80, 81, Spectrums, Timex, etc.). As well as emulating the machines themselves, numerous addon cards are supported, including hi-res graphics, custom character sets, sound and colour cards.
+  - title: VB81
+    url: http://freestuff.grok.co.uk/vb81/
+    platform: Windows
+    text: Sinclair ZX81 Emulator (with Visual Basic sources). Excellent emulator
+  - title: X-Tender
+    url: http://www.delhez.demon.nl/
+    platform: Windows
+    text: The best ZX emulator for PC compatibles
+  - title: ZX 81 Homepage
+    url: http://www.maxon.de/homes/r_kurz/
+    platform: Windows
+    text: ''
+  - title: ZX81
+    url: http://www.w-4.de/~kurz/
+    platform: Apple
+    text: ''
+  - title: XZ81
+    url: http://www.zx81.nl/
+    platform: Unix / Linux
+    text: And other ZX-81 emulators there...
+  - title: ZX-81 Emulator 2.1
+    url: http://www.hh.schule.de/hhs/mjaap/ftp/zx81_v21.zip
+    platform: Atari
+    text: ''
+  - title: Java ZX81 Emulator
+    url: http://home.clara.net/rsergeant/
+    platform: Other platform
+    text: Java emulator
+  - title: Timex/Sinclair 1000 Emulator (Java)
+    url: http://www.vavasour.ca/jeff/trs80.html#ts1000
+    platform: Other platform
+    text: With this JAVA emulator, you'll be able to run a Timex/Sinclair 1000 in your browser window
+  - title: zx81emu
+    url: http://www.tlienhard.com/ap800.shtml
+    platform: Other platform
+    text: ZX-81 Emulator for the SonyEricsson P800 Smart Phone
+  - title: MESS
+    url: http://www.mess.org
+    platform: Multiplatform
+    text: MESS emulates the ZX-81, Lambda 8300, Power 3000 and other clones !
+  links:
+  - title: Achromic's ZX81 Site
+    url: http://zx81.achromic.co.uk/
+    text: A small, ZX81 fan site. With games and links to some emulators
+  - title: DOCUMENTATION
+    url: http://www.8bit.ht.st/
+    text: The Lil Old Sinclair Computer Technical Information Repository
+  - title: DOCUMENTATION
+    url: http://web.ukonline.co.uk/sinclair.zx81/
+    text: ZX-81 on-line manual. Great work !
+  - title: Jame's Sinclair ZX-81 Page
+    url: http://james.istop.com/zx81/
+    text: Some technical infos and links
+  - title: Planet Sinclair
+    url: http://www.nvg.ntnu.no/sinclair/computers/zx81/zx81.htm
+    text: Planet Sinclair has very interesting information on the ZX-81
+  - title: Sinclair ZX Hardware Website
+    url: http://www.xs4all.nl/~echorod/zx/index.htm
+    text: Features designs to build your own Sinclair computer
+  - title: The ZX81 Hardware and Software Collection
+    url: http://zx81.atspace.com/
+    text: Online museum for ZX81 hardware, software and literature
+  - title: TS1000.US
+    url: http://www.ts1000.us/
+    text: Documentation, software, hardware tips and more
+  - title: Zebra Systems, Inc.
+    url: http://www.zebrasystems.com/zebrasystems/zx81/index.html
+    text: Website where you can buy Timex/Sinclair products including ZX-81 kits !
+  - title: ZX81 Collection
+    url: http://www.zx81stuff.org.uk/
+    text: Online collection of ZX81 tapes, books and hardware
+  - title: ZX-81 forum
+    url: http://zx81.tlienhard.com/
+    text: A new ZX-81 forum. cool.
+  - title: ZX81 Home Page
+    url: http://www.honneamise.u-net.com/zx81/
+    text: FAQ and ZX81 Charts.
+  - title: ZX-81 The Archive
+    url: http://www.imarshall.karoo.net/zx81/zx81technical.htm
+    text: Lot of info here
+  - title: ZX-81 webring
+    url: http://www.zx81.de/webring/index.htm
+    text: Very useful to explore other ZX-81 related sites
+  - title: ZX-Team Homepage
+    url: http://www.zx81.de/
+    text: Quite a reference for the ZX-80, ZX-81, TS1000-1500, PC8300, Lambda and Jupiter Ace !
+  - title: ZX-TEAM-homepage & ZX-81 Web-Ring
+    url: http://www.zx81.de/
+    text: Logically useful
+  - title: Web Wiz CAPTCHA
+    url: http://www.webwizcaptcha.com
+    text: Sinclair computers
+  docs:
+  - title: SINCLAIR ZX-81 BASIC PROGRAMMING
+    url: ftp://ftp.worldofspectrum.org/pub/sinclair/books/ZX81BASICProgramming.pdf
+    cover: /media/museum/docs/couvs/sinclair_zx81_basic-programming.jpg
+    text: |-
+      [**SINCLAIR ZX-81 BASIC PROGRAMMING**](ftp://ftp.worldofspectrum.org/pub/sinclair/books/ZX81BASICProgramming.pdf)written by Sinclair Research Limited / Steven Vickers
+
+       compiled/archived by Robin Stuart\
+       type of document : PDF\
+       size : 5,2 MB\
+       source : [www.worldofspectrum.org](http://www.worldofspectrum.org/)
+
+      **... READ THE ONLINE VERSION BY CLICKING BELOW :**
+  - title: TIMEX SINCLAIR 1000 - USER MANUAL
+    url: http://www.ts1000.us/usermanuals.htm
+    cover: /media/museum/docs/couvs/timex-sinclair_1000_user-manual.jpg
+    text: |-
+      [**TIMEX SINCLAIR 1000 - USER MANUAL**](http://www.ts1000.us/usermanuals.htm)written by Timex / Sinclair / Steven Vickers
+
+       compiled/archived by Bill Hicks\
+       type of document : PDF\
+       size : 3.5 MB\
+       source : [www.ts1000.us](http://www.ts1000.us/)
+
+      **... READ THE ONLINE VERSION BY CLICKING BELOW :**
+  - title: THE COMPLETE TIMEX TS1000 & SINCLAIR ZX81 ROM DISASSEMBLY
+    url: null
+    cover: /media/museum/docs/couvs/sinclair_zx81_rom-disasembly.jpg
+    text: |-
+      **THE COMPLETE TIMEX TS1000 & SINCLAIR ZX81 ROM DISASSEMBLY**\
+      written by Dr. Ian Logan & Dr. Frank O'Hara
+
+       compiled/archived by Bill Hicks\
+       type of document : PDF\
+       size : 5 MB\
+       source : [www.ts1000.us](http://www.ts1000.us/)
+
+      **... READ THE ONLINE VERSION BY CLICKING BELOW :**
+  - title: TIMEX SINCLAIR 2020 COMPUTER PROGRAM RECORDER
+    url: null
+    cover: /media/museum/docs/couvs/ts2020_tape-recorder_manual.jpg
+    text: |-
+      **TIMEX SINCLAIR 2020 COMPUTER PROGRAM RECORDER**\
+      written by Timex Computer Corporation
+
+       compiled/archived by Bill Hicks / www.ts1000.us\
+       type of document : Online reader
+
+      **... READ THE ONLINE VERSION BY CLICKING BELOW :**
+  related:
+  - /museum/czerweny-cz-1000
+  - /museum/lambda-electronics-ltd-pc-8300
+  - /museum/microace
+  - /museum/sinclair-zx-80
+  - /museum/sinclair-zx-81
+  - /museum/timex-sinclair-1000
+  - /museum/tonel-pc
+  oc_id: 928
+  source:
+    url: https://web.archive.org/web/20230528104325/http://www.old-computers.com/museum/computer.asp?c=928
+    date: '2023-05-28'
+---
+
+TADEO CZERWENY "CZ" is a an electromechanical company, which was founded by Tadeo Czerweny in September 1958. It is located in Parana, Entre Rios province, in Argentina. The company made transformers, electric motors, etc. In the 80´s Czerweny marketed the Timex Sinclair´s models, under its own name.
+
+The CZ-1000 Plus used a brand new case, as opposed to the [CZ-1000](/museum/czerweny-cz-1000/), 1500 and [2000](/museum/czerweny-cz-2000/) which used original Timex-Sinclair ones. But inside, it was just a [Sinclair ZX-81](/museum/sinclair-zx-81/) with 2 KB RAM, with a new plastic case and a chicklet keyboard.
+
+At least two versions have been produced. The grey-key version used a dozen of standard 74xx chips. The black-key version featured a new card, redesigned by Czerweny, with only four ZX-81 chips. It also held one DIN joystick plug.
+
+In Argentina Czerweny models competed with Brazilians TK 83, 85, 90x and genuine Sinclair machines, but CZ sold more machines than them.
+
+<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>