TRS80 Model 4 with 4 160KB 5inch floppies, 2 1.2MB 8 inch floppies, 5MB hard disk, Tandy 132 column printer. Had to move program sources from this PC to a Windows 7 Intel Core2 DUO PC. The programs where FORTRAN and C sources. This PC runs CP/M, so I copied the source files at 300baud via serial port to new PC. SO I went from 1983 "backup" floppies to present day. Almost 28 year time span

In 1997 the Mars Pathfinder carried the Soujourner rover to the surface of Mars. In the months that this little craft was on Mars it traveled approx 300 feet.

The Spirit and Opportunity will be able to travel that distance in a day (Mars day??).

The Soujourner lasted months past its predicted life time on Mars. If Opportunity lands safely, and the twin crafts have the sucess of Soujourner we could have a year of interesting times in robotic space exploration.