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yann64andClaude Opus 5.5 3eeabe9649 Full content from the completed page crawl (media download still running) 
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, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Czerweny CZ-1000
Computers
Home Computer
Argentina
1985
Zilog Z80A
name company company_name specs tabs photos hardware emulators links docs comments related oc_id source
CZ-1000 /companies/czerweny Czerweny
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NAME CZ-1000
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MANUFACTURER Czerweny
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TYPE Home Computer
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ORIGIN Argentina
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YEAR 1985
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BUILT IN LANGUAGE Sinclair Basic
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KEYBOARD Touch-sensitive keyboard, 40 keys
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CPU Zilog Z80A
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SPEED 3.5 MHz
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RAM 2 KB
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ROM 8 KB
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TEXT MODES 32 x 24 (but 2 lines are reserved for system messages and commands)
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GRAPHIC MODES 64 x 44
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COLORS Black and white
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SOUND None
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SIZE / WEIGHT 167 x 175 x 40 mm / 350gr
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I/O PORTS Z80 Bus, tape, video
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POWER SUPPLY External 9V - 600 mA AC adaptor
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PRICE $80 ($79.90 'Austral' in Argentina)
photos
hardware
emulators
links
docs
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CZ-1000 Thanks to Nestor Zangoni for this picture null
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MANUAL COVER Thanks to **Mario Villar** null
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BOX Thanks to Nestor Zangoni for this picture null
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64 KB from Suntroncis Suntronics T/S 1000 & ZX81 64K Memory Pack (Male Socket on Back, Female Socket on Front). /media/museum/hardware/timex_1000-suntronics-64k_1.jpg
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TIMEX SINCLAIR 1016 16k RAM extension /media/museum/hardware/timex_sinclair-1000_16kram-1016.jpg
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EightyOne http://www.chuntey.com/eightyone/ Windows 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.
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VB81 http://freestuff.grok.co.uk/vb81/ Windows Sinclair ZX81 Emulator (with Visual Basic sources). Excellent emulator
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X-Tender http://www.delhez.demon.nl/ Windows The best ZX emulator for PC compatibles
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ZX 81 Homepage http://www.maxon.de/homes/r_kurz/ Windows
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ZX81 http://www.w-4.de/~kurz/ Apple
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XZ81 http://www.zx81.nl/ Unix / Linux And other ZX-81 emulators there...
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ZX-81 Emulator 2.1 http://www.hh.schule.de/hhs/mjaap/ftp/zx81_v21.zip Atari
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Java ZX81 Emulator http://home.clara.net/rsergeant/ Other platform Java emulator
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Timex/Sinclair 1000 Emulator (Java) http://www.vavasour.ca/jeff/trs80.html#ts1000 Other platform With this JAVA emulator, you'll be able to run a Timex/Sinclair 1000 in your browser window
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zx81emu http://www.tlienhard.com/ap800.shtml Other platform ZX-81 Emulator for the SonyEricsson P800 Smart Phone
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MESS http://www.mess.org Multiplatform MESS emulates the ZX-81, Lambda 8300, Power 3000 and other clones !
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Achromic's ZX81 Site http://zx81.achromic.co.uk/ A small, ZX81 fan site. With games and links to some emulators
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DOCUMENTATION http://www.8bit.ht.st/ The Lil Old Sinclair Computer Technical Information Repository
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DOCUMENTATION http://web.ukonline.co.uk/sinclair.zx81/ ZX-81 on-line manual. Great work !
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Jame's Sinclair ZX-81 Page http://james.istop.com/zx81/ Some technical infos and links
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Planet Sinclair http://www.nvg.ntnu.no/sinclair/computers/zx81/zx81.htm Planet Sinclair has very interesting information on the ZX-81
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Sinclair ZX Hardware Website http://www.xs4all.nl/~echorod/zx/index.htm Features designs to build your own Sinclair computer
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The ZX81 Hardware and Software Collection http://zx81.atspace.com/ Online museum for ZX81 hardware, software and literature
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TS1000.US http://www.ts1000.us/ Documentation, software, hardware tips and more
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Zebra Systems, Inc. http://www.zebrasystems.com/zebrasystems/zx81/index.html Website where you can buy Timex/Sinclair products including ZX-81 kits !
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ZX81 Collection http://www.zx81stuff.org.uk/ Online collection of ZX81 tapes, books and hardware
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ZX-81 forum http://zx81.tlienhard.com/ A new ZX-81 forum. cool.
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ZX81 Home Page http://www.honneamise.u-net.com/zx81/ FAQ and ZX81 Charts.
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ZX-81 The Archive http://www.imarshall.karoo.net/zx81/zx81technical.htm Lot of info here
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ZX-81 webring http://www.zx81.de/webring/index.htm Very useful to explore other ZX-81 related sites
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ZX-Team Homepage http://www.zx81.de/ Quite a reference for the ZX-80, ZX-81, TS1000-1500, PC8300, Lambda and Jupiter Ace !
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ZX-TEAM-homepage & ZX-81 Web-Ring http://www.zx81.de/ Logically useful
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Web Wiz CAPTCHA http://www.webwizcaptcha.com Sinclair computers
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SINCLAIR ZX-81 BASIC PROGRAMMING ftp://ftp.worldofspectrum.org/pub/sinclair/books/ZX81BASICProgramming.pdf /media/museum/docs/couvs/sinclair_zx81_basic-programming.jpg [**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 :**
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TIMEX SINCLAIR 1000 - USER MANUAL http://www.ts1000.us/usermanuals.htm /media/museum/docs/couvs/timex-sinclair_1000_user-manual.jpg [**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 :**
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THE COMPLETE TIMEX TS1000 & SINCLAIR ZX81 ROM DISASSEMBLY null /media/museum/docs/couvs/sinclair_zx81_rom-disasembly.jpg **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 :**
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TIMEX SINCLAIR 2020 COMPUTER PROGRAM RECORDER null /media/museum/docs/couvs/ts2020_tape-recorder_manual.jpg **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 :**
author date text
Diego Sapena Pastor (Argentina) Monday 14th February 2011 As quoted by Marcelo, you could attach 16kb of extra RAM, but the price you had to pay for it (apart from the money, ''cause it was pretty expensive) was an increased reset time and a desperating slow response time when typing BASIC programs. Other drawbacks were it''s slow transfer rate cassette interface, it''s alarming high working temperature and the fact that many IC''s of the previous ZX80 were replaced by the Ferranti''s ULA (cost-saving idea) yielding the computer useless and repairless if you had it wrong, unless, of course, you could "cannibalizate" another one! Nevertheless, it was for us at that time, an adorable tiny self-contained computer with which we learnt BASIC and Z80 code in an inexpensive way!
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Marcelo O. Garcia (Hearth) Monday 25th September 2006 I owned in the 80's (and still do) a CZ-1000, which is exactly the same as you show in your record, and had 2 Kb of RAM memory. I would add that at that at that time it was also possible to buy a RAM memory expansor, which connected to the CZ-1000 from behind. It featured 16 Kb of memory, which was "a lot" for that that time standards.
/museum/czerweny-cz-1000-plus
/museum/lambda-electronics-ltd-pc-8300
/museum/microace
/museum/sinclair-zx-80
/museum/sinclair-zx-81
/museum/timex-sinclair-1000
/museum/tonel-pc
925
url date
https://web.archive.org/web/20230604045301/http://www.old-computers.com/museum/computer.asp?c=925 2023-06-04

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 is thus a rebadged Timex Sinclair 1000, which is itself a Sinclair ZX-81 with 2 KB RAM.

In Argentina Czerweny models competed with Brazilians TK 83, 85, 90x and genuine Sinclair machines, but CZ sold more machines than them.

Marcelo Garcia comments:
In the 80's in Argentina it was possible to find a memory expansion module (16 KB), which was simply a box with extra memory chips which plugged into the back of the Czerweny CZ 1000

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.
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