History Of IBM Mainframe Operating Systems
The history of operating systems running on IBM mainframes is a notable chapter of history of mainframe operating systems, because of IBM's long-standing position as the world's largest hardware supplier of mainframe computers.
Arguably the operating systems which IBM supplied to customers for use on its early mainframes have seldom been very innovative, except for the virtual machine systems beginning with CP67. But the company's well-known reputation for preferring proven technology has generally given potential users the confidence to adopt new IBM systems fairly quickly. IBM's current mainframe operating systems, z/OS, z/VM, z/VSE, and z/TPF, are backwards compatible successors to operating systems introduced in the 1960s, although of course they have been improved in many ways.
Both IBM-supplied operating systems and those supplied by others are discussed here, if notably used on IBM mainframes.
| History of IBM mainframe operating systems |
|---|
Early mainframe computers
|
S/360 and successors
|
DOS/360 and successors (1966)
|
OS/360 and successors (1966)
|
VM line
|
TPF line
|
UNIX and Unix-like
|
Read more about History Of IBM Mainframe Operating Systems: Before System/360, Early Time-sharing and Virtual Machine Systems, System/360 Operating Systems, System/370 and Virtual Memory Operating Systems
Famous quotes containing the words history of, history, operating and/or systems:
“There are two great unknown forces to-day, electricity and woman, but men can reckon much better on electricity than they can on woman.”
—Josephine K. Henry, U.S. suffragist. As quoted in History of Woman Suffrage, vol. 4, ch. 15, by Susan B. Anthony and Ida Husted Harper (1902)
“The history of every country begins in the heart of a man or a woman.”
—Willa Cather (1876–1947)
“Many people operate under the assumption that since parenting is a natural adult function, we should instinctively know how to do it—and do it well. The truth is, effective parenting requires study and practice like any other skilled profession. Who would even consider turning an untrained surgeon loose in an operating room? Yet we “operate” on our children every day.”
—Louise Hart (20th century)
“I am beginning to suspect all elaborate and special systems of education. They seem to me to be built up on the supposition that every child is a kind of idiot who must be taught to think.”
—Anne Sullivan (1866–1936)