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Object Record


Apple Macintosh Classic PC Model M0420
Macintosh Classic
Catalog Number 13.0014.002
Title Apple Macintosh Classic PC Model M0420
History The Apple Macintosh Classic was the first Apple compuer under $1000. It retained many features of previous models, including a 4 MB memory, but was faster and had a floppy disk drive. Extensive education software was developed for it.

Dr. Thomas Wehr was chief of the Clinical Psychobiology Branch in the NIMH. He is best known for his research on the effect of light on the secretion of melantonin and sleep. Also, he and Dr. Norman E. Rosenthal identified Seasonal Affective Disorder (SAD) and developed light therapy to treat it.

"This was my first personal computer. Its word-processor program had a great impact on my productivity. Not long after I acquired the computer, I published 5 first-author scientific papers in the American Journal of Psychiatry in one year. I suspect that is a record. The ease of putting words to paper, and most importantly, the ease of revising them, plus the fact that it was no longer necessary to depend on secretaries, was very liberating. It revolutionized my approach to data-analysis, graphics and writing." Dr. Thomas Wehr, email, January 20, 2014.
Description .01 Apple Macintosh classic PC
.02 Key board, Model MO116
.03 Apple desktop bus mouse, G5431

.01 Tan plastic cube. The Top has indent for handle. Sides have vents. The back has vents, power cord outlet, on/off toggle; connectors for phone, printer, speakers, etc. Front has screen, opening for disk, Apple logo.

.02 Tan plastic keyboard. Keys have been marked with red and blue marker dots for right hand (red) and left hand (blue).

.03 Tan plastic. Rather flat, stamped with Apple logo. Square bottom.
Date December 1990
Organizations NIH; NIMH (National Institute of Mental Health)
NIH Property # ADAMHA 110711; NIH 1109470
Old NIH Property # none
Serial # .01 E048923M0435LL/A; .02 641410; .03 T002913C22
People Wehr, Thomas