02introProg_3014

02introProg_3014 - Lecture File 02 COP 3014 COP 3014...

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Lecture File 02 COP 3014 August 22, 2010 A. Ford Tyson 1 COP 3014 Lecture File 02 ± Overview of Computers and Programming 1 – Computer fundamentals – Programming languages – Software Life-Cycle – Algorithm – Ethical/Legal Issues in Computing Copyright 1997-present, Ann Ford Tyson ± hardware physical components ± software programs 2 ± program sequence of instructions which a computer can perform ± run execute the instructions Organization INPUT DEVICES keyboard MAIN UNIT CPU: OUTPUT DEVICES monitor 3 file disk mouse touchscreen CU+ALU main memory (screen) printer program + data results
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Lecture File 02 COP 3014 August 22, 2010 A. Ford Tyson 2 Hardware Terms p.1 ± CPU Central Processing Unit e.g. Pentium, etc. the "brain" of the computer 4 –ISA Instruction Set Architecture what specific instructions the CPU can perform Hardware Terms p.2 –CU Control Unit oversees when instructions execute 5 –ALU • add, subtract, etc. • logical operations, e.g. (it is raining) AND (it is warm outside) true or false? Hardware Terms p.3 ± Digital Computer – most commonly used today 6 most commonly used today – all information represented by 0s and 1s (binary encoding) ± What else, in your experience, is digital ?
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Lecture File 02 COP 3014 August 22, 2010 A. Ford Tyson 3 Hardware Terms p.4 ± Main Memory – RAM = Random Access Memory – storage close to CPU 7 – stores both an executing program and the data it works on (e.g. Microsoft Word + a current English paper) ± Secondary Memory – outside main unit – hard drives, flash drives etc. More Important Concepts
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This note was uploaded on 03/14/2011 for the course COP 3014 taught by Professor Tyson during the Fall '10 term at FSU.

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02introProg_3014 - Lecture File 02 COP 3014 COP 3014...

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