MIR_Hardware - ISM 4300 ISM 4300 Managing Information...

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Unformatted text preview: ISM 4300 ISM 4300 Managing Information Resources Managing Information Resources Computer Hardware Computer Hardware INPUT DEVICES SECONDARY STORAGE PRIMARY STORAGE COMPUTER COMPONENTS CPU OUTPUT DEVICES COMMUNICATIONS DEVICES BUSES CPU & PRIMARY STORAGE CPU CPU PRIMARY PRIMARY STORAGE STORAGE DATA BUS DATA BUS ADDRESS BUS ADDRESS BUS CONTROL BUS CONTROL BUS INPUT DEVICES OUTPUT DEVICES SECONDARY STORAGE CENTRAL PROCESSING UNIT (CPU) RAM RAM PRIMARY (MAIN) MEMORY PRIMARY (MAIN) MEMORY CONTROL UNIT CONTROL UNIT ARITHMETIC/LOGIC ARITHMETIC/LOGIC UNIT UNIT ROM ROM CLOCK CLOCK ALU & CONTROL UNIT ARITHMETIC- LOGIC UNIT: CPU component performs logic and arithmetic operations CONTROL UNIT: CPU component controls, coordinates other parts of computer system * Instruction Cycle: 1. FETCH 2. DECODE 3. PLACE IN INSTRUCTION REGISTER 4. PLACE INTO ADDRESS REGISTER * INSTRUCTION & EXECUTION CYCLE Execution Cycle: 5. SEND DATA FROM MAIN MEMORY TO STORAGE REGISTER 6. COMMAND ALU 7. ALU PERFORMS OPERATION 8. SEND RESULT TO ACCUMULATOR * INSTRUCTION & EXECUTION CYCLE COMPUTER TIME Millisecond .001 second thousand 15min 40 sec Microsecond .001 millisecond million 11.6 days Nanosecond .001microsecond billion 31.7 years Picosecond .001 nanosecond trillion 31,700 years * NAME LENGTH SECOND TO 1 SECOND NAME LENGTH SECOND TO 1 SECOND # PER COMPARED # PER COMPARED TYPES OF MEMORY RAM: Random Access Memory Dynamic: Changes thru processing Static: Remains constant (power on) ROM: Read Only Memory (preprogrammed) PROM: Program can be changed once EPROM: Erasable thru ultraviolet light EEPROM: Electrically erasable Also, primary and secondary memory * MEMORY SIZE KILOBYTE (KT): 2 bytes... 1024 bytes VLSI CIRCUIT WITH CPU WORD LENGTH: bits processed at one time MEGAHERTZ: one million cycles per second DATA BUS WIDTH: bits moved between CPU &...
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This note was uploaded on 07/31/2011 for the course ISM 4300 taught by Professor Staff during the Fall '08 term at University of South Florida.

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MIR_Hardware - ISM 4300 ISM 4300 Managing Information...

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