Technological Advances in Computer History

DRAM

1970

The newly formed Intel unveils the Intel 1103, the first Dynamic Access Memory (DRAM) chip

floppy disk

1971

Alan Shugart leads a team of IBM engineers who invent the "floppy disk," allowing data to be shared among computers

Ethernet

1973

Robert Metcalfe, a member of the research staff for Xerox, develops Ethernet for connecting multiple computers and other hardware.

apple 1

1976

Steve Jobs and Steve Wozniak start Apple Computers on April Fool's Day and roll out the Apple I, the first computer with a single-circuit board, according to Stanford University.

VisiCalc

1978

Accountants rejoice at the introduction of VisiCalc, the first computerized spreadsheet program