File:Altair Basic Sign.jpg
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Summary edit
The title page of the Altair BASIC source listing. It shows that Paul Allen, Bill Gates and Monte Davidoff wrote this version between February 9 and April 27 [1975]. The listing was found by Professor Harry Lewis and is now in the Harvard University library. The complete listing is around 100 pages long.
Early text editors required the source file to have line numbers. It was common practice to initially increment the lines by 10. This made it easier to insert additional lines.
- 00200 to 00320 - Printer format.
- 00340 - Sub Title for header on each page.
- 00360 to 00760 - Author names and dates, list of things to do.
- 00780 to 01081 - Constant definitions, partially obscured.
More information about the listing can be found here: http://www.interact-sw.co.uk/altair/other%20versions/ian.htm
The uneven vertical character alignment in this listing suggests this was printed on a drum-type line printer.
This is part of a large (8 foot high) wall display at the entrance to the "STARTUP: Albuquerque and the Personal Computer Revolution" wing of the New Mexico Museum of Natural History and Science. The museum allows photography by visitors with no restrictions. (I checked with the Public Relations Manager before my visit.) There is only a trivial amount of source code visible and by itself would not be creative enough for a copyright.
Photo by Michael Holley, , April 2007.
Taken with a Canon PowerShot A630 (1/25 second and F/2.8) using existing light.
DescriptionAltair Basic Sign.jpg | Listing of Altair BASIC on display at the New Mexico Museum of Natural History and Science. | |||
Date | ||||
Source | Swtpc6800 en:User:Swtpc6800 Michael Holley | |||
Author | Swtpc6800 en:User:Swtpc6800 Michael Holley | |||
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previous interwiki source edit
http://en.wikipedia.org/wiki/File:Altair_Basic_Sign.jpg
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current | 00:03, 14 June 2010 | 954 × 1,275 (314 KB) | German (talk | contribs) | {{Information |Description=Listing of Altair BASIC on display at the New Mexico Museum of Natural History and Science. |Source=http://en.wikipedia.org/wiki/File:Altair_Basic_Sign.jpg |Date=2007-12-22 |Author=en:User:Swtpc6800 |Permission={{PD-user-w| |
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Metadata
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.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot A630 |
Exposure time | 1/25 sec (0.04) |
F-number | f/2.8 |
Date and time of data generation | 12:00, 27 April 2007 |
Lens focal length | 7.3 mm |
Orientation | Normal |
Horizontal resolution | 120 dpi |
Vertical resolution | 120 dpi |
Software used | Adobe Photoshop Elements 5.0 Windows |
File change date and time | 14:37, 22 December 2007 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 12:00, 27 April 2007 |
Image compression mode | 3 |
APEX shutter speed | 4.65625 |
APEX aperture | 2.96875 |
APEX exposure bias | 0.33333333333333 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 11,412.587412587 |
Focal plane Y resolution | 11,439.252336449 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |