The history of computers . Dr. John V. Atanasoff and Clifford Berry design and build the first electronic digital computer. Their machine, the Atanasoff-Berry-Computer, or ABC, provides the foundation for advances in electronic digital computers. 1937.
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Alan Shugart at IBM demonstrates the first regular use of an 8-inch floppy (magnetic storage) disk.1968
The IBM PC is introduced, signaling IBM's entrance into the personal computer marketplace. The IBM PC quickly garners the largest share of the personal computer market and becomes the personal computer of choice in business.1981
Microsoft releases Windows 95, a major upgrade to its Windows operating system. Windows 95 consists of more than 10,000,000 lines of computer instructions developed by 300 person-years of effort. More than 50,000 individuals and companies test the software before it is released.1995
Handspring begins shipping the Treo™ communicator, a handheld computer with cellular telephone, e-mail, text messaging, and wireless Web capabilities.2002