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Notes |
Manufacturer |
Hewlett Packard (US) |
Model |
HP-75C and HP-75D |
Date Launched |
September 1982 (HP-75C) |
Price |
£750 (75C in early 1984) |
Microprocessor type |
Capricorn (HP's custom-designed 8-bit processor) |
ROM size |
48 kilobytes |
Standard RAM |
16 kilobytes (75C) / 32KB (76D) |
Maximum RAM |
Not known |
Keyboard type |
Almost full size, typewriter style. |
Supplied language |
Extended BASIC |
Text resolution |
1 line of 32 characters on LCD display |
Graphics resolution |
160 x 9 pixels |
Colours available |
Monochrome |
Example Screenshot |
|
Sound |
Beeper |
Cassette load speed |
Had a built-in magnetic card reader, hand-pulled, storing 1.3 kilobytes per card. |
Dimensions (mm) |
254 x 127 x 32 |
Special features |
Compact size. |
Good points |
Used Hewlett Packard's Interface Loop to connect up to 30 peripherals, such as a VDU, printer, modem, tape recorder... |
Bad points |
Capacity of the magnetic cards was too small. |
How successful? |
The HP-75D was popular for stock control in business and was also sold to US government agencies, but was not aimed at the home market. |
Comments |
Hewlett Packard designed the HP-75 to be a small, portable computer with all the power of a desktop machine of the time. |
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