The Osborne System One Personal Computer

A very early portable computer from 1982 which runs CP/M

Exceedingly rare, this specimen is probably the cleanest example of a fully functional Osborne One in existence today. As can be seen, the CRT appears as new and the unit is very low-hour. Please enjoy our blast from the past!

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Meet the Osborne One 100_1064.JPG
waiting for the boot command 100_1065.JPG
Booting 100_1067.JPG
Ready to get down to some serious work

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O/S and applications come on 5.25" floppy disks 100_1073.JPG
Disks stow neatly in special slots 100_1074.JPG
same picture with flash 100_1075.JPG
external video and battery connectors

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MODEM and RS-232 serial port 100_1077.JPG
IEEE488 port (wow!) and keyboard connector 100_1078.JPG
Machine was made on August 03, 1982. 300_1056.JPG
images of outer case show minimal yellowing, only a little on the top.

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The unit is in such fine shape because it sat between two cardboard boxes in a climate controlled bedroom for many years after it was put away. Every few months, like many other things from the collection, it was taken out and run for an hour or so, and then put away. 400_1057.JPG 900_1068.MOV
quicktime Video of boot-up from floppy. music incidental in background "I'll stand my ground, and I won't back down" (quite appropriate, don't you think?). 16 megabytes, 640x480, 30FPS 900_1069.MOV
quicktime video of boot-up from floppy, reset, and reboot. Quiet room. if you listen closely you can hear the floppy, but the machine is an unusually quiet performer. 27 megabytes, 640x480, 30FPS