Dr. Henry Edward Roberts, a developer of an early personal computer that inspired Bill Gates to found Microsoft, died Thursday in Georgia. He was 68.

Roberts, whose build-it-yourself kit concentrated thousands of dollars worth of computer capability in an affordable package, inspired Bill Gates and his childhood friend Paul Allen to come up with Microsoft in 1975 after they saw an article about the MITS Altair 8800 in Popular Electronics.

Roberts, an ex-military man, later went on to careers as a farmer and a physician, but continued to keep up with computer advances: He recently told Gates he hoped to work with new, nanotechnology-enhanced machines, according to son David Roberts.

"He did think it was pretty neat, some of the stuff they're doing with the processors," said David Roberts, who confirmed Gates rushed to Georgia Friday to be with his mentor.

Roberts died in a Macon hospital after a long bout with pneumonia, according to his family.