#retrocomputing

Differential Equation Analyzer (Analizator Równań Różniczkowych, ARR)

Manufacturer: Institute of Mathematics of the Polish Academy of Sciences (Państwowy Instytut Matematyczny), Poland 1954
#retrocomputing #photography

Remember when the future was here, and it was at Radio Shack?

This robot could be programmed, and it used cassette tapes for memory. It is designed to hold and move drinks. Pretty wow for the 80s.

Personally, I was more interested in the fireman's hat with integrated flashing light and siren (https://www.ebay.com/itm/277870190036). Nope, never got one.

#Photography #RetroComputing #RadioShack #Robots

Something a little different: I got a new-old-stock Ultratec Miniprint 525 text telephone (TTY). It's a telecommunications device designed for deaf people that transmits in Baudot code over a phone line.

While waiting for data, it cutely chirps expectantly. Keypresses make the modem sounds you'd be familiar with if you're older than me.

I don't have a phone setup, but at least its thermal paper will be easier to acquire than the larger paper for my teleprinters. Strangely, it works with batteries, but not its provided power supply.

#vintagecomputing #retrocomputing

Yesterday I was invited to a special demonstration of the GIER computer, the first transistorised computer in Denmark from 1962, at the Dansk Datahistorisk Forening.

The machine is restored to working condition (unfortunately the console typewriter is broken and replaced by a Raspberry Pi) and I was allowed to operate the GIER - it already had an OS and an Algol compiler - and the paper tape reader.

What a great experience - thanks a lot to everyone involved!

#denmark #retrocomputing #GIER