IBM MAIN FRAMES

                                     MAINFRAMES

INTRODUCTION:-

• Mainframe was designed by IBM in early 1950's.
• Mainframe is a server/ a large computer
• It was designed mainly to meet the business requirements. Almost 70% of the business applications are currently running on mainframe platform.

FEATURES:-

• Speed is high  for processing nearly 80 MIBS
• Low maintenance
• It can store large amount of data

APPLICATIONS:-

• Airlines
• banking
• railways
• telecom
• stock market

SKILLS REQUIRED TO LEARN MAIN FRAMES:

• COBOL
• JCL
• VSAM
• DB2
• CICS

COBOL:-

HISTORY:-

•   COBOL (Common Business Oriented Language) was developed in the  year  1959.But at the time there was no compiler available.
• COBOL  was developed by the team CONFERENCE ON DATA SYSTEM LANGUAGE (CODASYL)
• So the CODASYL team has met  ANSI  to develop COBOL  compiler. Then COBOL has a compiler in the year 1968.
• ANSI was released 1st version VS-COBOL-I  in the year 1974
• the second version was released in 1985

FEATURES:-

• It lools like a english language/HLL
• Store the large amount of data
• It is an independent  (it can in any other OS)
• It is a case insensitive
• It is a structured language