yann64andClaude Opus 5.5
3eeabe9649
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
265 lines
11 KiB
Markdown
265 lines
11 KiB
Markdown
---
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title: MicroAce
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- U.S.A.
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years:
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- '1980'
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cpus:
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- Z80
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params:
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name: MicroAce
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image: /media/museum/photos/microace_system_s1.jpg
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company: /companies/microace
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company_name: MICROACE
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specs:
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- label: NAME
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value: MicroAce
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- label: MANUFACTURER
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value: Microace
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: U.S.A.
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- label: YEAR
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value: '1980'
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- label: END OF PRODUCTION
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value: '1981'
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- label: BUILT IN LANGUAGE
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value: Sinclair Basic
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- label: KEYBOARD
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value: Membrane keyboard, 40 keys, 1 SHIFT key
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- label: CPU
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value: Z80
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- label: SPEED
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value: 3.25 MHz
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- label: RAM
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value: 1 KB, 901 bytes available (up to 2 KB on board)
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- label: ROM
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value: 4 KB
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- label: TEXT MODES
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value: 32 chars. x 22 lines
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- label: GRAPHIC MODES
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value: 64 x 44 dots
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- label: COLORS
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value: Monochrome
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- label: SOUND
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value: None
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- label: I/O PORTS
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value: Z80 Bus, tape, TV/RF video
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- label: POWER SUPPLY
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value: 9v DC, external PSU
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- label: PERIPHERALS
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value: 16 KB RAM extension
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- label: PRICE
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value: Unknown
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tabs:
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- photos
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- hardware
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- emulators
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- links
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- docs
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photos:
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- title: MICROACE
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subtitle: ''
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text: Picture from www.1000bit.net
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image: /media/museum/photos/microace_system_s2.jpg
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- title: CIRCUIT DIAGRAM
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subtitle: ''
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text: Thanks to **Ivan Andrews**
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image: /media/museum/photos/microace_diagram_s1.jpg
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hardware:
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- title: 64 KB
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subtitle: from Suntroncis
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text: Suntronics T/S 1000 & ZX81 64K Memory Pack (Male Socket on Back, Female Socket on Front).
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image: /media/museum/hardware/timex_1000-suntronics-64k_1.jpg
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- title: TIMEX SINCLAIR 1016
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subtitle: 16k RAM extension
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text: ''
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image: /media/museum/hardware/timex_sinclair-1000_16kram-1016.jpg
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emulators:
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- title: EightyOne
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url: http://www.chuntey.com/eightyone/
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platform: Windows
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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.
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- title: VB81
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url: http://freestuff.grok.co.uk/vb81/
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platform: Windows
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text: Sinclair ZX81 Emulator (with Visual Basic sources). Excellent emulator
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- title: X-Tender
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url: http://www.delhez.demon.nl/
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platform: Windows
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text: The best ZX emulator for PC compatibles
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- title: ZX 81 Homepage
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url: http://www.maxon.de/homes/r_kurz/
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platform: Windows
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text: ''
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- title: ZX81
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url: http://www.w-4.de/~kurz/
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platform: Apple
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text: ''
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- title: XZ81
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url: http://www.zx81.nl/
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platform: Unix / Linux
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text: And other ZX-81 emulators there...
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- title: ZX-81 Emulator 2.1
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url: http://www.hh.schule.de/hhs/mjaap/ftp/zx81_v21.zip
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platform: Atari
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text: ''
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- title: Java ZX81 Emulator
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url: http://home.clara.net/rsergeant/
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platform: Other platform
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text: Java emulator
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- title: Timex/Sinclair 1000 Emulator (Java)
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url: http://www.vavasour.ca/jeff/trs80.html#ts1000
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platform: Other platform
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text: With this JAVA emulator, you'll be able to run a Timex/Sinclair 1000 in your browser window
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- title: zx81emu
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url: http://www.tlienhard.com/ap800.shtml
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platform: Other platform
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text: ZX-81 Emulator for the SonyEricsson P800 Smart Phone
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- title: MESS
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url: http://www.mess.org
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platform: Multiplatform
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text: MESS emulates the ZX-81, Lambda 8300, Power 3000 and other clones !
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links:
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- title: Achromic's ZX81 Site
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url: http://zx81.achromic.co.uk/
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text: A small, ZX81 fan site. With games and links to some emulators
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- title: DOCUMENTATION
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url: http://www.8bit.ht.st/
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text: The Lil Old Sinclair Computer Technical Information Repository
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- title: DOCUMENTATION
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url: http://web.ukonline.co.uk/sinclair.zx81/
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text: ZX-81 on-line manual. Great work !
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- title: Jame's Sinclair ZX-81 Page
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url: http://james.istop.com/zx81/
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text: Some technical infos and links
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- title: Planet Sinclair
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url: http://www.nvg.ntnu.no/sinclair/computers/zx81/zx81.htm
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text: Planet Sinclair has very interesting information on the ZX-81
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- title: Sinclair ZX Hardware Website
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url: http://www.xs4all.nl/~echorod/zx/index.htm
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text: Features designs to build your own Sinclair computer
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- title: The ZX81 Hardware and Software Collection
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url: http://zx81.atspace.com/
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text: Online museum for ZX81 hardware, software and literature
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- title: TS1000.US
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url: http://www.ts1000.us/
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text: Documentation, software, hardware tips and more
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- title: Zebra Systems, Inc.
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url: http://www.zebrasystems.com/zebrasystems/zx81/index.html
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text: Website where you can buy Timex/Sinclair products including ZX-81 kits !
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- title: ZX81 Collection
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url: http://www.zx81stuff.org.uk/
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text: Online collection of ZX81 tapes, books and hardware
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- title: ZX-81 forum
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url: http://zx81.tlienhard.com/
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text: A new ZX-81 forum. cool.
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- title: ZX81 Home Page
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url: http://www.honneamise.u-net.com/zx81/
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text: FAQ and ZX81 Charts.
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- title: ZX-81 The Archive
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url: http://www.imarshall.karoo.net/zx81/zx81technical.htm
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text: Lot of info here
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- title: ZX-81 webring
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url: http://www.zx81.de/webring/index.htm
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text: Very useful to explore other ZX-81 related sites
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- title: ZX-Team Homepage
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url: http://www.zx81.de/
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text: Quite a reference for the ZX-80, ZX-81, TS1000-1500, PC8300, Lambda and Jupiter Ace !
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- title: ZX-TEAM-homepage & ZX-81 Web-Ring
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url: http://www.zx81.de/
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text: Logically useful
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- title: Web Wiz CAPTCHA
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url: http://www.webwizcaptcha.com
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text: Sinclair computers
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docs:
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- title: SINCLAIR ZX-81 BASIC PROGRAMMING
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url: ftp://ftp.worldofspectrum.org/pub/sinclair/books/ZX81BASICProgramming.pdf
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cover: /media/museum/docs/couvs/sinclair_zx81_basic-programming.jpg
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text: |-
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[**SINCLAIR ZX-81 BASIC PROGRAMMING**](ftp://ftp.worldofspectrum.org/pub/sinclair/books/ZX81BASICProgramming.pdf)written by Sinclair Research Limited / Steven Vickers
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compiled/archived by Robin Stuart\
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type of document : PDF\
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size : 5,2 MB\
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source : [www.worldofspectrum.org](http://www.worldofspectrum.org/)
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**... READ THE ONLINE VERSION BY CLICKING BELOW :**
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- title: TIMEX SINCLAIR 1000 - USER MANUAL
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url: http://www.ts1000.us/usermanuals.htm
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cover: /media/museum/docs/couvs/timex-sinclair_1000_user-manual.jpg
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text: |-
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[**TIMEX SINCLAIR 1000 - USER MANUAL**](http://www.ts1000.us/usermanuals.htm)written by Timex / Sinclair / Steven Vickers
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compiled/archived by Bill Hicks\
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type of document : PDF\
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size : 3.5 MB\
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source : [www.ts1000.us](http://www.ts1000.us/)
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**... READ THE ONLINE VERSION BY CLICKING BELOW :**
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- title: THE COMPLETE TIMEX TS1000 & SINCLAIR ZX81 ROM DISASSEMBLY
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url: null
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cover: /media/museum/docs/couvs/sinclair_zx81_rom-disasembly.jpg
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text: |-
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**THE COMPLETE TIMEX TS1000 & SINCLAIR ZX81 ROM DISASSEMBLY**\
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written by Dr. Ian Logan & Dr. Frank O'Hara
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compiled/archived by Bill Hicks\
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type of document : PDF\
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size : 5 MB\
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source : [www.ts1000.us](http://www.ts1000.us/)
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**... READ THE ONLINE VERSION BY CLICKING BELOW :**
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- title: TIMEX SINCLAIR 2020 COMPUTER PROGRAM RECORDER
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url: null
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cover: /media/museum/docs/couvs/ts2020_tape-recorder_manual.jpg
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text: |-
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**TIMEX SINCLAIR 2020 COMPUTER PROGRAM RECORDER**\
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written by Timex Computer Corporation
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compiled/archived by Bill Hicks / www.ts1000.us\
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type of document : Online reader
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**... READ THE ONLINE VERSION BY CLICKING BELOW :**
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comments:
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- author: Joe Batchelor (USA)
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date: Friday 3rd April 2015
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text: The early one had 4 K Internet Basic. Later there was an 8 K Basic. My kit was missing a zero ohm resistor and I did not install it. When switching from watching TV to the computer, the vertical hold had to be adjusted. It was running at 50 cycles and in the US it syncs with 60 cycles. I added a jumper wire in place of the resistor and all worked well. I added a surplus keyboard and tapped the video going to the modulator to drive a video monitor. The video was very much better without going through the TV tuner.
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- author: Jim Schwartz (USA)
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date: Friday 19th December 2014
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text: This, too, was my first computer. I remember building it from a kit. I learned to program in BASIC using this computer. I have since made programming my career, all self-taught.
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- author: Joe Sangemino
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date: Tuesday 16th August 2011
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text: My first computer, built it from the kit. lot of soldering of chip sockets, resistors, etc. When I first connected it to my TV and turned it on WOW! I was in the computer age! Type in a basic program, save it to cassette tape and you could play it again and again. Hamurabi was one of my early favorites. Great memories!
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- author: John Mullen (USA)
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date: Monday 12th March 2007
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text: My first computer was a Microace. The keyboard was always trouble. I built it into a homemade case using an Atari 800 keyboard. I also added the flicker free board and upgraded the ROM. That made it essentially a ZX-81 or Timex 1000.
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related:
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- /museum/czerweny-cz-1000
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- /museum/czerweny-cz-1000-plus
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- /museum/lambda-electronics-ltd-pc-8300
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- /museum/sinclair-zx-80
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- /museum/sinclair-zx-81
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- /museum/timex-sinclair-1000
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- /museum/tonel-pc
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oc_id: 1179
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source:
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url: https://web.archive.org/web/20230610134728/http://www.old-computers.com/museum/computer.asp?c=1179
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date: '2023-06-10'
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---
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A few months after Sinclair released its [ZX-80](/museum/sinclair-zx-80/), Microace of Santa Ana, California launched a clone of this computer.
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It was exactly the same machine, but a minor modification made that it could be expanded to 2 KB of RAM.\
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The internal ROM was also a pure copy of the Sinclair's original. Sinclair thus sued Microace but met with large difficulties because the judge couldn't seee the ROM content!\
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Sinclair eventually won because the Microace keyboard was also identical to the ZX-80's and the judge could see it...
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Microace then ceased the production of the 4 KB ROM machine but made later an agreement with Sinclair for a licenced version of the ZX-81 to be put on sale only in kit form and only in the USA. Microace also made a 'flicker-free board' for the ZX-80.
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<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>
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