There are three ages of computer Dark age Middle age Modern age

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1 There are three ages of computer Dark age Middle age Modern age
History of Computer There are three ages of computer Dark age Middle age Modern age Dark age ABACUS is a manual computing device consisting of a frame holding parallel rods strung with movable counters. The ABACUS , which was invented about 5000 year ago in Asia Minor and is still in use today and is considered the first computer this device allows user to make communications using a system of sliding beads arranged an a rack. Easily merchants used. The Abacus lost to importance it took nearly 12 countries, for the next significant advance in computing devices to emerge. Design By : M.Masood

2 Design By : M.Masood

3 Middle age (Analytical Engine)
Charles Babbage, a British professor mathematics is the man who invented the first computer in It was basically an mechanical type of calculator that also had a memory. The computer was powered by steam engine and used punched cards for programming. Design By : M.Masood

4 Modern Age (1940 to till now)
The First computer of modern age Mark-I in 1944 by Howard Aiken , here start modern ages of computer generation . Each generation of computer is characterized by a major technological development that functionally changed the way of computer further. Computer History Year/Enter Computer History Inventors/Inventions Computer History Description of Event 1936 Konrad Zuse - Z1 Computer First freely programmable computer. 1942 John Atanasoff & Clifford Berry ABC Computer Who was first in the computing biz is not always as easy as ABC. 1944 Howard Aiken & Grace Hopper Harvard Mark I Computer The Harvard Mark 1 computer. 1946 John Presper Eckert & John W. Mauchly ENIAC 1 Computer 20,000 vacuum tubes later... Design By : M.Masood

5 MARK-I ENAIC Design By : M.Masood

6 Second Generation (1959 to 1965)
First Generation (1941 to 1959) Major invention vacuum tube replace by relay system. ENIAC (Electronic numerical integrator and calculator) Magnetic tape for external devices Machine language use . Second Generation (1959 to 1965) Major invention transistor replace by vacuum tube. Magnetic Disk Introduce. Assembly Language. Design By : M.Masood

7 Fourth Generation (1970 to 1990)
Major invention : Introduce Microprocessor. Micro Computer . Increase internal RAM and External RAM. Fifth Generation (1990 to Till now) Increase and change Microprocessor Architecture . Artificial Intelligence system. Design By : M.Masood