yann64andClaude Opus 5.5
c913d792c4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
106 lines
3.3 KiB
Markdown
106 lines
3.3 KiB
Markdown
---
|
||
title: Tesla ONDRA
|
||
categories:
|
||
- Computers
|
||
types:
|
||
- Home Computer
|
||
origins:
|
||
- Czechoslovakia
|
||
years:
|
||
- '1985'
|
||
cpus:
|
||
- U880D
|
||
params:
|
||
name: ONDRA
|
||
image: /media/museum/photos/tesla_ondra_system_s1.jpg
|
||
company: /companies/tesla
|
||
company_name: Tesla
|
||
specs:
|
||
- label: NAME
|
||
value: ONDRA
|
||
- label: MANUFACTURER
|
||
value: Tesla
|
||
- label: TYPE
|
||
value: Home Computer
|
||
- label: ORIGIN
|
||
value: Czechoslovakia
|
||
- label: YEAR
|
||
value: '1985'
|
||
- label: BUILT IN LANGUAGE
|
||
value: None. BASIC language must be loaded from the tape.
|
||
- label: KEYBOARD
|
||
value: Calculator type, 37 keys, Upper/lower case letters, Czech alphabet, arrow keys.
|
||
- label: CPU
|
||
value: U880D (Z80 clone from German Democratic Republic)
|
||
- label: SPEED
|
||
value: 2 Mhz
|
||
- label: RAM
|
||
value: 64 KB
|
||
- label: ROM
|
||
value: 4 KB (up to 16 KB)
|
||
- label: TEXT MODES
|
||
value: '40 x 20 (characters matrix: 8 x 12)'
|
||
- label: GRAPHIC MODES
|
||
value: 320 x 240 dots. Text is displayed in graphics mode
|
||
- label: COLORS
|
||
value: Monochrome
|
||
- label: SOUND
|
||
value: 7 programmable tones (200 – 1000 Hz)
|
||
- label: SIZE / WEIGHT
|
||
value: 290 mm (wide) x 130 mm (deep) x 30 mm (high) / 1,5 Kg
|
||
- label: I/O PORTS
|
||
value: RF TV output, Tape interface (2400 baud), Centronics (printer) + Joystick
|
||
- label: POWER SUPPLY
|
||
value: External PSU +9 V
|
||
- label: PERIPHERALS
|
||
value: Joystick, printer, cassette recorder
|
||
- label: PRICE
|
||
value: About 20,000 Kcs (Czechoslovakian crowns) in 1987
|
||
tabs:
|
||
- photos
|
||
photos:
|
||
- title: LARGE VIEW
|
||
subtitle: ''
|
||
text: Thanks to **Jan Krupka**
|
||
image: /media/museum/photos/tesla_ondra_system_s2.jpg
|
||
- title: KEYBOARD CLOSE-UP
|
||
subtitle: ''
|
||
text: Thanks to **Jan Krupka**
|
||
image: /media/museum/photos/tesla_ondra_keyboard_s1.jpg
|
||
- title: INSIDE
|
||
subtitle: ''
|
||
text: Thanks to MUDr. Jan P. Naidr for this picture
|
||
image: /media/museum/photos/tesla_ondra_eclate.jpg
|
||
- title: 'WITH COLOUR TV #1'
|
||
subtitle: ''
|
||
text: Thanks to MUDr. Jan P. Naidr for this picture
|
||
image: /media/museum/photos/tesla_ondra_2.jpg
|
||
- title: 'WITH COLOUR TV #2'
|
||
subtitle: ''
|
||
text: Thanks to MUDr. Jan P. Naidr for this picture
|
||
image: /media/museum/photos/tesla_ondra_3.jpg
|
||
- title: THE BOX
|
||
subtitle: ''
|
||
text: Thanks to **Jan Krupka**
|
||
image: /media/museum/photos/tesla_ondra_box_s1.jpg
|
||
- title: ONDRA'S DESIGNER
|
||
subtitle: ''
|
||
text: |-
|
||
Eduard Smutny was the designer of the Ondra.
|
||
|
||
Thanks to MUDr. Jan P. Naidr for this picture
|
||
image: /media/museum/photos/tesla_ondra_engineer.jpg
|
||
oc_id: 612
|
||
source:
|
||
url: https://web.archive.org/web/20230608081413/http://www.old-computers.com/museum/computer.asp?c=612
|
||
date: '2023-06-08'
|
||
---
|
||
|
||
Developed in Elstroj and produced by Tesla Liberec and later Tesla Blatna, the Ondra was a low-cost system intended for computing initiation at home and school.
|
||
|
||
It was build around the U880 processor (East-German version of the Z80). It featured 64 KB RAM, 4 KB ROM and had 320 x 255 graphic capabilities. Three peripherals could be connected, a tape recorder, a Parallel printer and a joystick.
|
||
|
||
Only 1000 units were ever made. Then Tesla wanted to give the manufacturing to other firm. Unfortunately that never happened.
|
||
|
||
Picture and information from **Jan Krupka**
|