website/content/museum/microdigital-tk-83.md at 7d3b1bec89221c1d2d9becd1eec26dfd08766348

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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)

1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves.

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

2026-10-13 17:26:43 +02:00

2.6 KiB

Raw Blame History

title, categories, types, origins, years, cpus, params

title

categories

types

origins

years

cpus

params

Microdigital TK-83

Computers

Home Computer

Brazil

1981

Z80A

name

image

company

company_name

specs

tabs

forum_thread

photos

oc_id

source

TK-83

/media/museum/photos/microdigital_tk83_system_s1.jpg

/companies/microdigital

Microdigital

label	value
NAME	TK-83

label	value
MANUFACTURER	Microdigital

label	value
TYPE	Home Computer

label	value
ORIGIN	Brazil

label	value
YEAR	1981

label	value
END OF PRODUCTION	Unknown

label	value
BUILT IN LANGUAGE	Sinclair BASIC

label	value
KEYBOARD	Membrane 40 keys

label	value
CPU	Z80A

label	value
SPEED	3.25 MHz

label	value
RAM	2 KB up to 64 KB

label	value
ROM	8 KB

label	value
TEXT MODES	32 chars. x 22 lines

label	value
GRAPHIC MODES	64 x 44 dots

label	value
COLORS	Monochrome

label	value
SOUND	Unknown

label	value
SIZE / WEIGHT	167 (W) x 175 (D) x 40 (H) mm / 350g

label	value
I/O PORTS	Tape recorder, joystick, TV-RF

label	value
POWER SUPPLY	External AC adaptor

label	value
PERIPHERALS	16 and 48K RAM modules, all of the Sinclair peripherals

label	value
PRICE	85$ (USA, 1983)

photos

993

title	subtitle	text	image
LARGER VIEW		Thanks to Franco Girardi	/media/museum/photos/microdigital_tk83_system_s3.jpg

title	subtitle	text	image
TOP VIEW		Thanks to Franco Girardi	/media/museum/photos/microdigital_tk83_topview_s1.jpg

title	subtitle	text	image
BOTH SIDES		Thanks to Franco Girardi	/media/museum/photos/microdigital_tk83_sides_s1.jpg

title	subtitle	text	image
MICRODIGITAL LABEL		Thanks to Franco Girardi	/media/museum/photos/microdigital_tk83_label_s1.jpg

1019

url	date
https://web.archive.org/web/20230328121623/http://www.old-computers.com/museum/computer.asp?c=1019	2023-03-28

The TK83 followed the TK82. It was a close copy of the ZX81 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.

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.

2.6 KiB Raw Blame History

2.6 KiB

Raw Blame History