ITEC 1000 Study Guide - Final Guide: Memory Buffer Register, Wav, Exclusive Or

• School: York University
• Department: Information Technology
• Course: ITEC 1000
• Professor: Peter Khaiter

Document Summary

Number of symbols in languages: the ascii table has 128 unique symbols, the ebcdic table has 256 unique symbols, 65,536 characters can be represented in unicode. It consists of 3 or more disks that are all striped together and the equivalent of one drive is hold parity information. (i. e. you have 3 500gb hdds in r5 but you will only have 1tb of storage. ) If two drives fail in r5 the data is lost. Z = (l^2 + h^2)^1/2 (answer in inches) screen. X = size of monitor / z (in inches) Dot pitch = x / 0. 039 (in mm) Aspect ratio: aspect ratio is the ratio of the width to height of a display screen(4:3 on most displays and 16:9 on high def. displays) Input: i/0 device >i/o module>i/o register>ar under program control. Communication with i/o modules to control i/o operations: interrupt-driven i/o: A signal that causes the cpu to alter its normal flow of a program/instruction execution.