Introduction to Computer Systems Chapter 4

Introduction to Computer Systems Chapter 4 - Appendix F...

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Appendix F Selected Solutions F.4 Chapter 4 Solutions 4.1 Components of the Von Neumann Model: (a) Memory: Storage of information (data/program) (b) Processing Unit: Computation/Processing of Information (c) Input: Means of getting information into the computer. e.g. keyboard, mouse (d) Output: Means of getting information out of the computer. e.g. printer, monitor (e) Control Unit: Makes sure that all the other parts perform their tasks correctly and at the correct time. 4.3 The program counter does not maintain a count of any sort. The value stored in the program counter is the address of the next instruction to be processed. Hence the name ’Instruction Pointer’is more appropriate for it. 4.5 (a) Location 3 contains 0000 0000 0000 0000 Location 6 contains 1111 1110 1101 0011 (b) i. Two’s Complement - Location 0: 0001 1110 0100 0011 = 7747 Location 1: 1111 0000 0010 0101 = -4059 ii. ASCII - Location 4: 0000 0000 0110 0101 = 101 = ’e’ iii. Floating Point - Locations 6 and 7: 0000 0110 1101 1001 1111 1110 1101 0011
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Introduction to Computer Systems Chapter 4 - Appendix F...

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