File:Sinclair ZX81 Keyboard (1981).jpg
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Summary
[edit]DescriptionSinclair ZX81 Keyboard (1981).jpg |
Italiano: ZX81, home computer, produttore: Sinclair Research Ltd/Amstrad. Esposto alla Mostra per il Museo Didattico di Storia dell'Informatica, ottobre-novembre 2021, Padova, Italia. English: Keyboard of the home computer Sinclair ZX81 from 1981. Each key is also assigned with at least one instruction word from the implemented programming language BASIC. |
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Date | ||||
Source | Own work | |||
Author | Piergiovanna Grossi | |||
Other versions |
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Licensing
[edit]I, the copyright holder of this work, hereby publish it under the following license:
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:28, 19 May 2023 | 3,014 × 1,048 (1.94 MB) | Pittigrilli (talk | contribs) | File:ZX81 foto1.jpg cropped 23 % horizontally, 73 % vertically using CropTool with lossless mode. |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5300 |
Exposure time | 1/125 sec (0.008) |
F-number | f/5.6 |
ISO speed rating | 560 |
Date and time of data generation | 15:30, 5 November 2021 |
Lens focal length | 36 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.01 |
File change date and time | 15:30, 5 November 2021 |
Y and C positioning | Centered |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 15:30, 5 November 2021 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.5 APEX (f/4.76) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 70 |
DateTimeOriginal subseconds | 70 |
DateTimeDigitized subseconds | 70 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 54 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 0.0.3.2 |
Rating (out of 5) | 0 |