File:Hewlett-Packard Model HP-16C Programmable RPN Calculator, HP's First and Only Calculator esp. for Programmers, built 1982-1989 (edited to rectangular, V2).jpg
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Size of this preview: 800 × 506 pixels. Other resolutions: 320 × 202 pixels | 640 × 405 pixels | 1,024 × 647 pixels | 1,280 × 809 pixels | 2,449 × 1,548 pixels.
Original file (2,449 × 1,548 pixels, file size: 2.78 MB, MIME type: image/jpeg)
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Summary[edit]
DescriptionHewlett-Packard Model HP-16C Programmable RPN Calculator, HP's First and Only Calculator esp. for Programmers, built 1982-1989 (edited to rectangular, V2).jpg | Vintage Hewlett-Packard Model HP-16C Progammable RPN Calculator, HP's First and Only Calculator for programmers (hence people writing computer programs etc.), circa 1988 | |||
Date | ||||
Source | Vintage Hewlett-Packard Model HP-16C Progammable RPN Calculator, HP's First and Only Programmable Calculator, Circa 1988 | |||
Author | Joe Haupt from USA | |||
Other versions |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: changed perspective to rectangular incl. making outlines exactly horizontal and vertical, cropped, colors improved, changed each button's appearance, changed metal stripe on top, added active display on LCD display which was "off" in original, improved contrast and sharpness of all LCD segments in last work step. The original can be viewed here: Vintage Hewlett-Packard Model HP-16C Progammable RPN Calculator, HP's First and Only Calculator esp. for Programmers, circa 1988 (9330369298).jpg: . Modifications made by Pittigrilli.
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File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:45, 20 February 2024 | 2,449 × 1,548 (2.78 MB) | Pittigrilli (talk | contribs) | LC Display was a bit out of focus and had weak contast, thus increased sharpness and contrast of segments | |
19:43, 18 February 2024 | 2,449 × 1,548 (2.74 MB) | Pittigrilli (talk | contribs) | added display content in hex format | ||
13:55, 18 February 2024 | 2,449 × 1,548 (2.29 MB) | Pittigrilli (talk | contribs) | Cropped 8 % horizontally, 10 % vertically using CropTool with lossless mode. | ||
13:36, 18 February 2024 | 2,654 × 1,728 (2.37 MB) | Pittigrilli (talk | contribs) | completely reworked in detail, buttons and metal stripe in particular | ||
13:35, 18 February 2024 | 2,640 × 1,840 (3.38 MB) | Pittigrilli (talk | contribs) | File:Hewlett-Packard Model HP-16C Programmable RPN Calculator, HP's First and Only Calculator esp. for Programmers, built 1982-1989 (edited to rectangular).jpg cropped 20 % horizontally, 20 % vertically using CropTool with lossless mode. |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title | Edited with IrfanView and GIMP |
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User comments | Edited with IrfanView and GIMP |
JPEG file comment | Edited with IrfanView and GIMP |
Orientation | Normal |
Horizontal resolution | 144 dpi |
Vertical resolution | 144 dpi |
Software used | GIMP 2.10.36 |
File change date and time | 13:42, 20 February 2024 |
Color space | sRGB |
Unique ID of original document | xmp.did:3a01c9f5-6a69-4d33-9990-116447cf0899 |