website/content/museum/didaktik-kompakt.md

---
title: Didaktik Kompakt
categories:
- Computers
types:
- Home Computer
origins:
- Czechoslovakia
years:
- '1992'
cpus:
- Z80A
params:
  name: Kompakt
  image: /media/museum/photos/didaktik_kompakt_system_1.jpg
  company: /companies/didaktik
  company_name: Didaktik
  specs:
  - label: NAME
    value: Kompakt
  - label: MANUFACTURER
    value: Didaktik
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Czechoslovakia
  - label: YEAR
    value: '1992'
  - label: END OF PRODUCTION
    value: Unknown
  - label: BUILT IN LANGUAGE
    value: Spectrum Basic with some improvements
  - label: KEYBOARD
    value: QWERTY mechanical keyboard with separated arrow keys and many functions per key just like the spectrum
  - label: CPU
    value: Z80A
  - label: RAM
    value: 48 or 128 KB (up to 320 KB)
  - label: ROM
    value: 32 KB (Sinclair BASIC + MDOS O.S.)
  - label: TEXT MODES
    value: 32 x 22 or, 64 x 32 with special software
  - label: GRAPHIC MODES
    value: 256 x 192 dots
  - label: COLORS
    value: 8 (each have normal and bright mode). Thanks to russian ULA, 96 colours multicolor support (like Russian Pentagon or Scorpion speccy clones)
  - label: SOUND
    value: Beeper, 1 voice, 5 octaves
  - label: I/O PORTS
    value: Expansion bus, Sinclair Joystick port, Kempston joystick port, RF TV video output, Composite video output (Monitor), SCART video & audio connector, Tape interface
  - label: BUILT IN MEDIA
    value: 3,5'' 840 KB (DD) or 1.8 MB (HD). Standard PC floppy can be used
  - label: OS
    value: MDOS
  - label: POWER SUPPLY
    value: Built-in power supply unit
  - label: PERIPHERALS
    value: 'I/O ports: 2 x 9-pin canon Sinclair and Kempston, TV and RGB output, conector for external FDD, expansion slot and 8255 interface'
  - label: PRICE
    value: '230'
  tabs:
  - photos
  - hardware
  - links
  forum_thread: 929
  photos:
  - title: TOP
    subtitle: ''
    text: Thanks to Krosik for this picture
    image: /media/museum/photos/didaktik_kompakt_top_1.jpg
  - title: REAR
    subtitle: ''
    text: |-
      From left to right:

      \- expansion connector\
      \- RF TV video output\
      \- composite video output\
      \- tape interface\
      \- scart video connector\
      \- on/off power switch\
      \- power cord...

      Thanks to Krosik for this picture
    image: /media/museum/photos/didaktik_kompakt_rear.jpg
  - title: WITH BOX
    subtitle: ''
    text: Thanks to Krosik for this picture
    image: /media/museum/photos/didaktik_kompakt_with-box.jpg
  hardware:
  - title: IDE CONTROLLER
    subtitle: ''
    text: This hard disk IDE controller is named divIDE. It was developed and it is selled by its author Pavel Cimbal.
    image: /media/museum/hardware/didaktik_kompakt_idecontroller_1.jpg
  - title: MELODIK
    subtitle: 3-voice sound generator
    text: Thanks to **Aleš Jílek**
    image: /media/museum/hardware/didaktik_kompakt_melodik_s1.jpg
  - title: INSIDE THE MELODIK
    subtitle: ''
    text: |-
      The Melodik interface is built around the well known AY 3-8912 sound generator. One find it in the MSX machines and in the Spectrum 128. It's a 3 voice, 8 octave + white noise generator.

      Thanks to **Aleš Jílek**
    image: /media/museum/hardware/didaktik_kompakt_melodik_s2.jpg
  links:
  - title: Clube do TK90X
    url: http://www.tk90x.com.br
    text: Brazilian site dedicated to the TK90 and other Microdigital systems
  - title: Here, you can buy several Didaktik models and peripherals.
    url: http://www.kompaktservis.cz
    text: Site in Czech language. Try e-mail
  - title: Home Computer Museum
    url: http://www.homecomputer.de/pages/f_sinclair.html
    text: Stephan has a lot of Spectrum clones with wonderful pictures
  - title: Sinclair Nostalgia Products
    url: http://www.algonet.se/~rsm/zx/zxclones.html
    text: Impressive list of ZX Spectrum clones with useful infos
  - title: ZX Spectrum in the 21st Century
    url: http://tarjan.uw.hu/zxclones_en.htm
    text: Nice review of modern Spectrum clones
  related:
  - /museum/didaktik-gama
  - /museum/didaktik-m
  - /museum/microdigital-tk-90x
  - /museum/microdigital-tk-95
  - /museum/robik
  - /museum/spica-ines
  oc_id: 953
  source:
    url: https://web.archive.org/web/20230609174624/http://www.old-computers.com/museum/computer.asp?c=953
    date: '2023-06-09'
---

The Didaktik Kompakt was the last model made by Didaktik Skalica.

The Didaktik Kompakt is a [Didaktik M](/museum/didaktik-m/) with a built-in 3.5" disk drive(720 KB). It has standard connectors for joysticks and printer and a built-in parallel interface using i8255 as in [Didaktik Gama](/museum/didaktik-gama/). The amount of internal ROM was doubled, 16 KB for the [Spectrum](/museum/sinclair-zx-spectrum/) BASIC interpreter and 16 KB for the MDOS operating system. All other features are the same as [Didaktik M](/museum/didaktik-m/).

It was a real all-in-one computer with built-in power supply unit. Base model had 48 KB of RAM, expandable up to 128 KB (not provided by Didaktik). Sound output was a poor beeper. An AY 3-8912 sound shipset (3 voice, 8 octave + white noise generator) could be connected externaly via the Didaktik Melodik expansion.

Normal TV set could be used as well as EGA monitor. ULA custom chip was the same as the M version, screen was thus still square.

The interesting thing for computer collectors is you can still buy a didaktik model along with all its accessories and expansions. See Link section

---

Contributors: Vladimir Kopacek (info & pictures), Mikezt

<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>