History of Computing Roots of Computing Dr M

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History of Computing Roots of Computing Dr. M. Tanvir Afzal

History of Computing Roots of Computing Dr. M. Tanvir Afzal

Roots of Computing Mechanical vs Electronics-driven machines Book: Computer Science : An Overview, 12

Roots of Computing Mechanical vs Electronics-driven machines Book: Computer Science : An Overview, 12 th ed. By J. Glenn Brook. Shear and Dennis Brylow Page: 16 -21 2 Dr. M. Tanvir Afzal

Roots of Computing Abacus: ü Ancient China, Greek and Roman Civilization 3 Dr. M.

Roots of Computing Abacus: ü Ancient China, Greek and Roman Civilization 3 Dr. M. Tanvir Afzal

Abacus 4 Dr. M. Tanvir Afzal

Abacus 4 Dr. M. Tanvir Afzal

Roots of Computing Technology of Gears: ü Pascal from france (1623 -1662) ü Leibniz

Roots of Computing Technology of Gears: ü Pascal from france (1623 -1662) ü Leibniz (1646 -1716) from Germany ü Babbage from England (1792 -1871) 5 Dr. M. Tanvir Afzal

Technology of Gears 6 Dr. M. Tanvir Afzal

Technology of Gears 6 Dr. M. Tanvir Afzal

Data Storage In Geared Technology: ü Pascal and Leibniz output in gear ü Babbage

Data Storage In Geared Technology: ü Pascal and Leibniz output in gear ü Babbage produced output on paper (punch cards) ü Punch card helped in algorithm changes 7 Dr. M. Tanvir Afzal

Data Storage 8

Data Storage 8

Mechanical to Electronically Controlled Mechanical Relays ü Cost effective production of geared Technology-challenge ü

Mechanical to Electronically Controlled Mechanical Relays ü Cost effective production of geared Technology-challenge ü Electromechanical machine by Stibitz in 1940 at Bell Labs ü Mark-I at Harvard in 1944 9 Dr. M. Tanvir Afzal

Vacuum Tubes 10 ENIAC (electronic numerical integrator and calculator)

Vacuum Tubes 10 ENIAC (electronic numerical integrator and calculator)

Fact. Sheet: ENIAC by 1956 11 ü ü ü ü ü Occupied 1800 square

Fact. Sheet: ENIAC by 1956 11 ü ü ü ü ü Occupied 1800 square feet 20, 000 vacuum tubes 1500 relays 10, 000 capacitors 70, 000 registers 200 Kilo Watt electricity https: //www. computerhope. c Weight 30 tons om/jargon/e/eniac. htm Cost = $487, 000 PKR = 62. 5 millions Dr. M. Tanvir Afzal

Rapid Advancement ü ü ü 12 Transistor Integrated Circuits Size reduction Processing Power doubling

Rapid Advancement ü ü ü 12 Transistor Integrated Circuits Size reduction Processing Power doubling in 2 years Desktop computer by Steve Jobs and Stephen Wozniak in 1976 ü IBM launched PC in 1981 ü Web ü Smart Phones Dr. M. Tanvir Afzal

Summary History of Computing ü Abacus to Smart phone 13 Dr. M. Tanvir Afzal

Summary History of Computing ü Abacus to Smart phone 13 Dr. M. Tanvir Afzal

Roots Surds and Discriminant Roots of Equations RootsRoots Surds and Discriminant Roots of Equations Roots
Psychology Roots History Approaches Roots Early questions ConnectionPsychology Roots History Approaches Roots Early questions Connection
Classical Roots Lesson 9 Creativity roots ARS ARTISClassical Roots Lesson 9 Creativity roots ARS ARTIS
CLASSICAL ROOTS LESSON 5 MORE OR ROOTS MIKROSCLASSICAL ROOTS LESSON 5 MORE OR ROOTS MIKROS
Cube Roots To understand cube roots first youCube Roots To understand cube roots first you
Finding Real Roots of of Finding Real RootsFinding Real Roots of of Finding Real Roots
Finding Real Roots of of Finding Real RootsFinding Real Roots of of Finding Real Roots
Square roots and Cube roots Click On TheSquare roots and Cube roots Click On The
Roots 1 About Roots is an off shootRoots 1 About Roots is an off shoot
Plants Part 4 Roots Roots Serve 3 importantPlants Part 4 Roots Roots Serve 3 important
Who am I Name the Roots Character RootsWho am I Name the Roots Character Roots
Finding Real Roots of of Finding Real RootsFinding Real Roots of of Finding Real Roots