Image:Processor Technology SOL 20 Computer.jpg

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Description

Processor Technology SOL-20 Computer.

The prototype appeared on the July 1976 cover of Popular Electronics magazine. The computer had an 8080 microprocessor, a 64 character by 16 line video display, and could store data on audio cassettes. They typically had 8K to 64K of RAM. A popular option was the NorthStar 5 1/4 inch floppy disk system. The side panels were solid walnut. The December 1976 price for a SOL-20 kit with 2K of RAM was $995.

Lee Felsenstein was the principal designer of the SOL-20.

Robert M. Marsh, Lee Felsenstein (July 1976). "Build SOL, An Intellignet Computer Terminal". Popular Electronics 10 (1): 35-38.

This SOL-20 was displayed by Jordan Ruderman at Vintage Computer Festival 9.0. Held at the Computer History Museum in Mountain View, California. November 4th and 5th, 2006.

Photo by Michael Holley, November 2006

Taken with a Canon PowerShot A630 (1/60 second and F/3.5) using on camera flash. The background was removed using Adobe Photoshop Elements 3.0.
Source

self-made
Date

November 5, 2006
Author

Swtpc6800 en:User:Swtpc6800 Michael Holley
Permission
(Reusing this image)

see below
Other versions Image:Early Personal Computers.jpg

[edit] Licensing

Public domain I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current01:25, 30 January 20081,422×1,079 (205 KB)Swtpc6800 ({{Information |Description= Processor Technology SOL-20 Computer. |Source=self-made |Date=November 5, 2006 |Author= Swtpc6800 en:User:Swtpc6800 Michael Holley |Permission= |other_versions =Image:Early Personal Computers.jpg}})
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Metadata

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Camera manufacturer Canon
Camera model Canon PowerShot A630
Exposure time 1/60 sec (0.016666666666667)
F-number f/3.5
Date and time of data generation 17:54, 4 November 2006
Lens focal length 12.565 mm
Image title Processor Technology Sol-20 computer. Designed by Lee Felsenstein in 1976.

Photo by Michael Holley 2006

Orientation Normal
Horizontal resolution 150 dpi
Vertical resolution 150 dpi
Software used Adobe Photoshop Elements 3.0 Windows
File change date and time 16:06, 21 July 2007
Y and C positioning 1
Exif version 2.2
Date and time of digitizing 17:54, 4 November 2006
Image compression mode 3
Shutter speed 5.90625
Aperture 3.625
Exposure bias 0
Maximum land aperture 3.625
Metering mode Pattern
Flash 89
Color space 65535
Focal plane X resolution 11412.587412587
Focal plane Y resolution 11439.252336449
Focal plane resolution unit inches
Sensing method One-chip color area sensor
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Digital zoom ratio 1
Scene capture type Standard