ENGL 2100 Lecture Notes - Lecture 10: Computer Architecture, Instruction Register, Control Unit
28 Jan 2017
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Document Summary
Computer architecture = attributes of system visible to the programmer those that impact the logical execution of a program. Computer organization = operations units and their interconnections that realize the architectural specifications. Families of computers have the same architectures, but different organizations, e. g. ibm system/370 since. Architecture and organization closely linked in microcomputers as enhanced hardware leads to enhanced architectures, e. g. intel mmx. Transfer data between external devices, e. g. keyboard to monitor, microphone to speaker, network to printer. Data processing, using either internal or external source, and either internal or external destination. Mechanical: 1801 joseph-marie jacquard"s loom, 1842 charles babbage. 1936 alan turing universal computing machine that combines data and program on a single tape. 1946 electronic eniac (electronic numerical integrator analyzer and computer)computer to compute trajectory tables for the us army. Only 20% of all bombs came with 1000 feet of their targets. Weighed 30 tons, 8. 5" h, 3" w x 80" long, and took 200 kilowatts of power.
