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

content/museum/microdigital-tk-83.md

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+---
+title: Microdigital TK-83
+categories:
+- Computers
+types:
+- Home Computer
+origins:
+- Brazil
+years:
+- '1981'
+cpus:
+- Z80A
+params:
+  name: TK-83
+  image: /media/museum/photos/microdigital_tk83_system_s1.jpg
+  company: /companies/microdigital
+  company_name: Microdigital
+  specs:
+  - label: NAME
+    value: TK-83
+  - label: MANUFACTURER
+    value: Microdigital
+  - label: TYPE
+    value: Home Computer
+  - label: ORIGIN
+    value: Brazil
+  - label: YEAR
+    value: '1981'
+  - label: END OF PRODUCTION
+    value: Unknown
+  - label: BUILT IN LANGUAGE
+    value: Sinclair BASIC
+  - label: KEYBOARD
+    value: Membrane 40 keys
+  - label: CPU
+    value: Z80A
+  - label: SPEED
+    value: 3.25 MHz
+  - label: RAM
+    value: 2 KB up to 64 KB
+  - label: ROM
+    value: 8 KB
+  - label: TEXT MODES
+    value: 32 chars. x 22 lines
+  - label: GRAPHIC MODES
+    value: 64 x 44 dots
+  - label: COLORS
+    value: Monochrome
+  - label: SOUND
+    value: Unknown
+  - label: SIZE / WEIGHT
+    value: 167 (W) x 175 (D) x 40 (H) mm / 350g
+  - label: I/O PORTS
+    value: Tape recorder, joystick, TV-RF
+  - label: POWER SUPPLY
+    value: External AC adaptor
+  - label: PERIPHERALS
+    value: 16 and 48K RAM modules, all of the Sinclair peripherals
+  - label: PRICE
+    value: 85$ (USA, 1983)
+  tabs:
+  - photos
+  photos:
+  - title: LARGER VIEW
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: /media/museum/photos/microdigital_tk83_system_s3.jpg
+  - title: TOP VIEW
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: /media/museum/photos/microdigital_tk83_topview_s1.jpg
+  - title: BOTH SIDES
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: /media/museum/photos/microdigital_tk83_sides_s1.jpg
+  - title: MICRODIGITAL LABEL
+    subtitle: ''
+    text: Thanks to **Franco Girardi**
+    image: /media/museum/photos/microdigital_tk83_label_s1.jpg
+  comments:
+  - author: jaime (England, UK)
+    date: Tuesday 15th April 2014
+    text: Do you still have one the sell? I had one as a kid and would love to own one again :D
+  - author: jaime (England, UK)
+    date: Tuesday 15th April 2014
+    text: Do you still have one the sell? I had one as a kid and would love to own one again :D
+  - author: Rogerio de Avila (Brasilia/Brazil)
+    date: Tuesday 13rd August 2013
+    text: |-
+      Jorge Nunez,\
+      How do I contact you in private?\
+      It''s about your TK83.\
+      Thanks
+  - author: Jorge Nunez (Brazil/Sao Paulo)
+    date: Friday 14th June 2013
+    text: I have one to sell..
+  - author: Maldoror
+    date: Monday 22nd April 2013
+    text: 'As far as I know, Microdigital manufactured the TK line in Brazil. However, some electric goods manufacturer from Argentina got to sell some "2nd Generation" clones (clones of clones) under the Czerweny brand: CZ1000 standing for the TimexSinclair 1000, and so on. CZ2000 was a ZX Spectrum clone.'
+  - author: Marthins (Lord Fenix) (brazil)
+    date: Sunday 22nd April 2012
+    text: |-
+      TK83
+
+      Width: 167 mm\
+      Depth: 175 mm\
+      Height: 40 mm\
+      Weight: 350 g
+  - author: Tigh (Brazil)
+    date: Monday 16th January 2012
+    text: |-
+      Microdigital was a Brazillian manufacturer. Had a subsidiary in Argentina but all plants were located in Brazil (2 in São Paulo and 1 Manaus).\
+      TK83 was manufactured on one of that plants and exported to Argentina just relabeled to be marketed as a national product.
+  - author: Webmaster (France)
+    date: Monday 5th September 2011
+    text: Good question. That is weird because Microdigital is really from Brazil (http://en.wikipedia.org/wiki/Microdigital_Eletronica). Maybe the factory was in Argentina ?
+  - author: Dragontamer (Spain)
+    date: Monday 1st August 2011
+    text: Sorry, but if the label on the computer says ''made in Argentina'', why is credited to Brazil?
+  oc_id: 1019
+  source:
+    url: https://web.archive.org/web/20230328121623/http://www.old-computers.com/museum/computer.asp?c=1019
+    date: '2023-03-28'
+---
+
+The TK83 followed the [TK82](/museum/microdigital-tk-82/). It was a close copy of the [ZX81](/museum/sinclair-zx-81/) but offered some enhanced features: 2 KB of RAM expandable up to 64 KB, and a joystick interface.
+
+The tape speed could be either 300 or 4200 baud per second. The machine shipped with a beige or silver case, the same size as the ZX-81's.
+
+Thanks to **Franco Girardi** for the picture.
+
+<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>