DATAMATH CALCULATOR MUSEUM
Compucorp 325 Scientist
|Date of introduction:||1972||Display technology:||Panaplex II|
|New price:||Display size:||10+2|
|Size:||14.0" x 11.2" x 4.5"||Printer technology:||drum impact|
|Batteries:||Date of manufacture:||mth 03 year 1974|
|AC-Adapter:||115V 22VA||Origin of manufacture:||USA|
|Precision:||13||Integrated circuits:||see description|
|Program steps:||80 + 80||Courtesy of:||Joerg Woerner|
Compucorp 325 Scientist could be called the best engineered calculator of its time.
Introduced in the year 1972 the 300-line from Computer Design Corporation (CDC)
were far ahead of their time. CDC, Los Angeles designed an universal
data-processor with external ROM's for the operating system and mathematical
functions and external RAM for data- and program-storage.
This rare 325 Scientist is unique in the 300-line sporting a huge drum printer and a desktop style housing. An external tape recorder provides a storage capacity of about 75,000 Bytes. The 325 Scientist was replaced soon with the 327 Scientist with four times of internal memory.
Much more machines appeared in the smaller 300-line housing, like the Scientist models 320G, 322G and this 324G:
Don't miss the wonderful web-sites of Rick Bensene and Viktor T. Toth to get an impression of the remaining models for financial or statistical operations.
The integrates circuits of the 300-line were originally manufactured by AMI, later TI was choosen as a reliable second source. Please use the sixteen thumbnails below to get a deeper look inside the wonderful Compucorp 325 Scientist.
|Compared with the sleek Compucorp 324G the 325 Scientist looks like the big brother. We feel familiar with the keyboard layout and the display, only the big drum printer looks different to our expectations.|
|Dismantling the Compucorp 325 Scientist takes some time. After removing the upper shell of the housing with the keyboard and display atteched we get a bottom housing dominated by the huge drum printer. On the left of the printer we locate the power supply and opposite the four stacked printed circuit boards (PCB's) forming the calculator brain.|
|Removing the printer and the
four PCB's gives additional details:|
Backplane connectors known from the 324G
Lot of cable wiring instead PCB's
Huge cooling area for the power supply
A rare label of a wonderful programmable
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 21, 2002. No reprints without written permission.