Problem Solving and Program Design in C ppt

Problem Solving and Program Design in C ppt - Problem...

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Problem Solving and Program Design in C Chap. 1 Overview of Computers and Programming Chow-Sing Lin
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[email protected] Computers Computer Technology is everywhere!! Virtually every aspect of your life depends on computers. The computer program’s role in this technology is essential Without a list of instructions to follow, the computer is virtually useless. One of the most versatile programming languages available today the C language Dr. Chow-Sing Lin Program Design I - CH1 2
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[email protected] Electronic Computers Then and Now The First Computer built at 1930s by Dr. John Atanasoff and Dr. Clifford Berry at Iowa State University. (ABC) Atanasoff-Berry-Computer (ABC) Used in nuclear physics with mathematical computations Dr. Chow-Sing Lin Program Design I - CH1 3
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[email protected] ABC Dr. Chow-Sing Lin Program Design I - CH1 4
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[email protected] ENIAC The first large-scale, general-purpose electronic digital computer – ENIAC Electronic Numerical Integrator and Computer Built in 1946 at the Univ. of Pennsylvania with funding from the U.S. army. Used to compute ballistics tables, predict the weather, make atomic energy calculations Weight :30 tons; Space: 30 x 50 ft 2 Used vacuum tubes as their basic electronic component. Dr. Chow-Sing Lin Program Design I - CH1 5
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[email protected] ENIAC Dr. Chow-Sing Lin Program Design I - CH1 6
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[email protected] Electronic Technology advance Technological advances in the design and manufacture of electronic components led to new generations of computers Smaller, faster, and less expensive Nowadays, the entire circuitry of a computer processor can be packaged in a single electronic component, microprocessor chip Dr. Chow-Sing Lin Program Design I - CH1 7
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[email protected] Figure 1.1 The Intel Pentium 4 Processor chip is an integrated circuit containing the full circuitry of a central processing unit. This processor can execute a simple instruction such as an integer addition in one six-billionth of a second. (Reprinted by permission of Intel Corporation, © Intel Corporation 2003) Dr. Chow-Sing Lin Program Design I - CH1 8
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Dr. Chow-Sing Lin Program Design I - CH1 9 Figure 1.1 The Intel Atom processor chip contains the full circuitry of a central processing unit in an integrated circuit whose small size and low power requirements make it suitable for use in mobile internet devices. (Intel Corporation Pressroom Photo Archives)
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Problem Solving and Program Design in C ppt - Problem...

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