Intro to Computer Science

Intro to Computer Science - Intro to Computer Science -...

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Processor Memory/private storage Is volatile Info can be lost Data Y Program A Program C Program B Data Q Important address Intro to Computer Science - IPOS – model of computer/software - Input – can be letters, #’s, or special characters. IE: Course grade + credits, mice, mic, camera, keyboard, scanner. - Processing where input is saved and then processed. IE: compute GPA - Output – the result of the input after being processed. IE: Actual GPA. - Storage – where information is stored-usually from the processing portion. Storage is involatile. Inside our computer, everything is stored on binary (zeros and ones), 8 zeros and ones represent 1 letter. - Binary – 0 or 1 = bits (binary digits) - 8 bits = 1 character (our alphabet) - 8 bits = 1 byte - 4 bytes = nibble - Can only represent 256 characters. - IE: 3(0000 0011) + (….) 5(0000 0101) ENTER(….) = 8(0000 1000) - >> ans 8\ - Computer is made up of a few instructions (most w/ (+) and (-) - Most things are done in addition and subtraction. -
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This note was uploaded on 04/09/2008 for the course CS 105 taught by Professor Schwarz during the Fall '08 term at Stevens.

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Intro to Computer Science - Intro to Computer Science -...

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