The document provides a history of the development of computers from the typewriter to modern devices. It discusses how Charles Babbage originated the idea of a programmable computer in the 1830s. The ABC, built in 1937, was the first electronic computer. The ENIAC, completed in 1946, was the first general-purpose, electronic and programmable computer. It weighed 30 tons and used vacuum tubes. The document then outlines the development of smaller portable computers like the Apple Macintosh in 1984 and early laptops in the 1980s.

1. The Package Brennan Griffin, Mrs. Sandoval, 5/7/2008 9:45AM EST, Internet Literacy Project, BTT101