Management Information Systems Islamia University of Bahawalpur Delivered

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

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

Management Information Systems UNIVAC computer

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

Management Information Systems n Moore’s Law q q q 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 1960 s 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

The Evolution in Computer Applications n n IS are virtual system that enable management to control the operations of the physical system of the firm Physical System q n Of the firms consists of tangible resources such as: materials, personnel, machines and money Virtual System q 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 n Open system q n That interacts with its environment by means of physical resources flows. An Information System is also an open system Closed system q System that doesn’t communicate with its environment. Closed system would not interact with customers, managers, or anyone else

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