A High Speed Disc Memory and a Color Image Display for a Small Computer.
KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE
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The display system presented in the thesis is capable of displaying black and white image data with 64 grey levels, color image data, or merely dot patterns for alpha-numeric output. Unlike most computer display systems which require a large amount of magnetic core memory, the display system described in this thesis utilizes a low cost fixed head digital disc memory which has a maximum readout of 24 binary digits per 13 microsecond. Similar discs are available with output capabilities of 72 binary digits per 13 microsecond. The cost per bit of the digital storage is only one-half of a cent as compared to seven to twelve cents per bit for magnetic core memory. A six bit seven megahertz digital to analog converter was designed and utilized in the interface from the digital disc to the monitors. Three of these converters are needed for a color system. Author
- Computer Programming and Software
- Computer Hardware