connect the dot

Organization

IBM

American computer and technology company.

5 links, 4 backed by primary records

Play the story Explore connections

Dates
1911 –
Also known as
International Business Machines, International Business Machines Corporation
Over time
  1. Active 1911 –
  2. people who worked here John Opel (President) 1974–1983
  3. CEO John Opel 1981–1985

IBM launched its first personal computer, the IBM PC, in August 1981. It chose an operating system from a small Seattle company, Microsoft, which in turn had bought it from Seattle Computer Products.

Connections 5

CEO

people who worked here

  • John Opel 1974–1983 President Primary record 1

awarded a contract to

  • Microsoft Nov 1980 operating system for the IBM PC Primary record 23

launched

involved in

Timeline 5 dates
  1. 1911 – IBM
  2. 1974–1983 John Opel worked at IBM
  3. Nov 1980 IBM awarded a contract to Microsoft
  4. 1981–1985 John Opel CEO of IBM
  5. 12 Aug 1981 IBM launched IBM PC
Proof 4 sources
  1. John Opel, IBM. Primary record
    as president of IBM from 1974 to 1983, CEO from 1981 to 1985, and chairman of the board in 1983.
  2. Microsoft MS-DOS early source code, Computer History Museum, 25 Mar 2014. Scholarship & press
    When Microsoft signed the contract with IBM in November 1980, they had no such operating system.
    But their favored OS was the newly-written PC DOS, commissioned by IBM from the five-year-old Seattle-based software company Microsoft.
  3. The IBM PC, IBM. Primary record
    Microsoft provided the OS, which would later become known as MS-DOS.
    On August 12, 1981, Estridge unveiled the IBM PC at New York’s Waldorf Hotel.
  4. Facts about Microsoft, Microsoft. Primary record
    IBM introduces its personal computer with Microsoft’s 16-bit operating system, MS-DOS 1.0
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