Management Information Systems Islamia University of Bahawalpur Delivered by: Tasawar Javed

History of Information Systems  It includes: How H/W has evolved and how it has been applied over time First general purpose Digital Computer was installed in a business organization Great increase in speed Dramatic reduction in Size Evolved from relatively straightforward accounting process to system Designed to support Managers and other problem solvers Management Information Systems

Evolution in Computer H/W  ENIAC ( Electronic Numerical Integrator & Calculator ) Developed in 1946 by John & Presper  UNIVAC (universal automatic computer) Installed in 1951, in US census Bureau GE; installed same machine 3 years later These early computer called ‘Mainframes’ IBM revolutionized the computer industry Introduced IBM/system/360 line More than one user appears to be working on the computer at same time; refers as ‘Multitasking’ Old computer were much more slower than current computers Management Information Systems

UNIVAC computer

Smaller computers  Minicomputers  Then Microcomputers or Micro  Apple and Tandy Corporation were pioneers in the Microcomputer Market……. Management Information Systems

Moore’s Law  Processor speed has increased in number of years, after IBM introduced microcomputer  Gordon Moore gave Moore’s law; one of the founder of Intel, in 1960s  It stated “storage density of integrated circuits on a silicon chip doubled about every year”  After that pace slowed down and now it doubles every year and half (18 months)  If you purchase a computer 15 years from today, it would be 1024 times as powerful, yet cost the same as today’s model Management Information Systems

IS are virtual system that enable management to control the operations of the physical system of the firm Physical System  Of the firms consists of tangible resources such as: materials, personnel, machines and money Virtual System  Consist of the information resources that are used to represent the physical system; for example an inventory storeroom containing inventory items is a physical system and the computer based inventory master file is a virtual system that represents the physical system. The Evolution in Computer Applications

Open system  That interacts with its environment by means of physical resources flows. An Information System is also an open system Closed system  System that doesn’t communicate with its environment. Closed system would not interact with customers, managers, or anyone else The Evolution in Computer Applications

Transaction Processing Systems Management Information Systems Virtual Office Systems Decision Support Systems Enterprise Resource Planning Systems The Evolution in Computer Applications