UCSC CMPE 003 - CMPE 003 Exam 2 (10 pages)

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CMPE 003 Exam 2



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CMPE 003 Exam 2

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Pages:
10
School:
University of California, Santa Cruz
Course:
Cmpe 003 - Personal Computer Concepts

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CMPE 003 Computer Concepts Exam 2 Review of Chapters 4 5 7 9 and HTML Chapter 4 The Central Processing Unit What Goes on Inside the Computer A B C D E F IDENTIFY THE COMPONENTS OF THE CENTRAL PROCESSING UNIT AND HOW THEY WORK TOGETHER AND INTERACT WITH MEMORY 1 Arithmetic Logic Unit ALU performs calculations 2 Control Unit CU directs the computer system to perform a calculation access memory do a read write operation 3 Registers temporarily holds a data brought from memory while waiting to be used by the ALU b intermediate results to be sent to memory DESCRIBE HOW PROGRAM INSTRUCTIONS ARE EXECUTED BY THE COMPUTER 1 CU gets an instruction and places it in memory 2 CU decodes the instruction 3 CU notifies the appropriate part of hardware to take action 4 Control is transferred to the appropriate part of hardware 5 Task is performed 6 Control is returned to the CU EXPLAIN HOW DATA IS REPRESENTED IN THE COMPUTER 1 Circuit with current ON 2 Circuit without current OFF 3 Represent on off circuits using binary numbers ON 1 OFF 0 4 Data a Bit binary digit one circuit that is either on or off 1 or 0 b Byte eight bits that together represent alphanumeric data according to a predefined coding scheme i ASCII ii EBCDIC iii Unicode c Word the number of bits that the CPU can process at a time size of one register in the CPU DESCRIBE HOW THE COMPUTER FINDS INSTRUCTIONS AND DATA 1 Each memory location has unique address DESCRIBE THE COMPONENTS OF A MICROCOMPUTER SYSTEM UNIT S MOTHERBOARD 1 CPU 2 Memory 3 Connections LIST THE MEASURES OF COMPUTER PROCESSING SPEED AND EXPLAIN THE APPROACHES THAT INCREASE SPEED 1 Microprocessor speed a MHz GHz machine cycles b MIPS instructions c Megaflop floating point operations 2 Cache 3 4 5 6 a size b L1 and L2 Flash memory Processor type a RISC b CISC Parallel Processing a serial b pipelining Other factors a number of processors b register size in CPU word size c speed and size of bus lines d amount and type of RAM Review the Lecture Notes in the



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