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
93 lines
3.5 KiB
Markdown
93 lines
3.5 KiB
Markdown
---
|
|
title: Microdigital TK-82
|
|
categories:
|
|
- Computers
|
|
types:
|
|
- Home Computer
|
|
origins:
|
|
- Brazil
|
|
years:
|
|
- '1981'
|
|
cpus:
|
|
- Z80A
|
|
params:
|
|
name: TK-82
|
|
company: /companies/microdigital
|
|
company_name: Microdigital
|
|
specs:
|
|
- label: NAME
|
|
value: TK-82
|
|
- label: MANUFACTURER
|
|
value: Microdigital
|
|
- label: TYPE
|
|
value: Home Computer
|
|
- label: ORIGIN
|
|
value: Brazil
|
|
- label: YEAR
|
|
value: '1981'
|
|
- label: BUILT IN LANGUAGE
|
|
value: Sinclair BASIC (extended in 82C & 83)
|
|
- label: KEYBOARD
|
|
value: Membrane 40 keys
|
|
- label: CPU
|
|
value: Z80A
|
|
- label: SPEED
|
|
value: 3.25 MHz
|
|
- label: CO-PROCESSOR
|
|
value: ULA custom chip in TK-83
|
|
- label: RAM
|
|
value: 2 KB up to 16 KB (82 & 82C) or 64 KB (83)
|
|
- label: ROM
|
|
value: 4 KB (82), 8 KB (82C & 83)
|
|
- label: TEXT MODES
|
|
value: 32 chars. x 24 lines
|
|
- label: GRAPHIC MODES
|
|
value: 64 x 22 dots
|
|
- label: COLORS
|
|
value: Monochrome
|
|
- label: SOUND
|
|
value: Beeper
|
|
- label: SIZE / WEIGHT
|
|
value: Approx. 17.5 (W) x 23 (D) x 3.8 (H) cm / 340 g
|
|
- label: I/O PORTS
|
|
value: TV/RF, Bus expansion, tape recorder In/Out, Joystick, Power
|
|
- label: POWER SUPPLY
|
|
value: External 10V power supply unit
|
|
- label: PERIPHERALS
|
|
value: All of the Sinclair and third sources peripherals
|
|
- label: PRICE
|
|
value: Unknown
|
|
tabs:
|
|
- adverts
|
|
adverts:
|
|
- title: ARGENTINIAN ADVERT
|
|
subtitle: ''
|
|
text: Thanks to [CZARG](http://www.speccy.org/czarg/) for this picture.
|
|
image: null
|
|
comments:
|
|
- author: Marcio Pinho (Brazil)
|
|
date: Wednesday 18th October 2006
|
|
text: |-
|
|
I still have a TK 82C at home :-)\
|
|
I will take some pictures and send them to you.
|
|
- author: wak (Brazil)
|
|
date: Wednesday 25th June 2003
|
|
text: I like to see the TK95x in this site! Tanks
|
|
oc_id: 912
|
|
source:
|
|
url: https://web.archive.org/web/20230328124651/http://www.old-computers.com/museum/computer.asp?c=912
|
|
date: '2023-03-28'
|
|
---
|
|
|
|
The TK-82, of **Microdigital Eletrônica Ltda**, was one of the first Brazilian home computer anyone could afford. It was a fairly close copy of the Sinclair [ZX-80](/museum/sinclair-zx-80/) albeit looking very similar to a Timex [TS-1000](/museum/timex-sinclair-1000/), the US version of the [ZX-81](/museum/sinclair-zx-81/) which was also sold in Brazil.
|
|
|
|
It was the second computer made by Microdigital, after the **TK-80**, first attempt to produce a ZX-80 copy. The company will later produce clones of a variety of other popular computers such as the Sinclair [Spectrum](/museum/sinclair-zx-spectrum/), [Apple II](/museum/apple-ii/) and even Tandy TRS-80 [Model III](/museum/tandy-radio-shack-trs-80-model-iii/). Actually, Microdigital never produced computers of its own design.
|
|
|
|
However, the TK-82 wasn't a mere copy of the ZX-80 but featured several enhancements: two KB of RAM instead of one, a joystick interface, a tone generator and a dual tape transfer speed which could be either 300 or 4800 baud.
|
|
|
|
Three models were successively launched. The **TK-82** with 4 KB of BASIC ROM, then the **TK-82S** with 8 KB of ROM, then the **TK-83** which RAM memory could be expanded up to 64 KB. First models used standard logic chips. They were later replaced by one custom chip, probably copied from the Sinclair ULA.
|
|
|
|
Thanks to **Dimitri Kokken** 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>
|