Mainframe, the father of all computer, first time IBM introduced this large high-speed computer in 1952, after that they produced better mainframe. They are continuing this task till today.
In the late 1960, IBM manufactured several large computer models, known as the IBM 700/7000 series. Initially IBM sold mainframe without any software, expecting customers to write their own. Programs were manually initiated, one at a time.Later, IBM provided compilers for the high-level programming languages Fortran and COBOL.
The zSeries family, introduced in 2000 with the z900, included IBM’s newly designed 64-bit z/Architecture. The new servers provided more than four times the performance of previous models.
Almost in every decade we heard a rumor that IBM mainframe is going to be dissolved in this decade and all the mainframe programmers are going to loose their job soon, but it never happened and there is no signal for the same. Instead, many big banks and financial hubs are fully depended on mainframe because of its high speed in data processing and the security. IBM can proudly say that nobody in this world could crack mainframe’s security wall.
In our site we will discuss about the most important technologies related to mainframe like JCL, COBOL, REXX, DB2, CA7 etc.