File:Sinclair Scientific (1329944882).jpg
Jump to navigation
Jump to search
Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,048 × 1,536 pixels.
Original file (2,048 × 1,536 pixels, file size: 480 KB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit].jpg&action=edit§ion=1){kind=link}
| Description |
An example of the very first electronic calculator I ever owned. I built mine myself from a kit in about 1974. By modern standards it was rubbish - only accurate to about 5 significant figures on log and trig functions - but that was better than 3SF on a slide rule, and it could add and subtract! It made physics homework much easier :-) It had an interesting feature that has stayed with me over the years - Reverse Polish Logic, no "=" button. After this I had a sequence of Hewlett-Packard calculators, all of which used the same system (though a much better implementation of it). The line culminated in an HP-42S in 1989, which I still have; if that machine can't easily do the calculation at hand, I need a PC... |
| Date | |
| Source | Sinclair Scientific |
| Author | Andy / Andrew Fogg from near Cambridge, UK |
Licensing
[edit].jpg&action=edit§ion=2){kind=link}
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
|
This image was originally posted to Flickr by ndrwfgg at https://flickr.com/photos/69024001@N00/1329944882. It was reviewed on 19 August 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:16, 19 August 2023 | | 2,048 × 1,536 (480 KB) | Fabe56 (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
.jpg&oldid=828830274){kind=link}