EECS 1520 Study Guide - Midterm Guide: Extended Ascii, Root Directory, Data Compression

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: John Hofbauer

Document Summary

In excel, the best style for formulas is to use named ranges. A file is a named collection of data, used for organizing secondary memory. The directory is not contained in any other directory is call the root directory. Representing text need to represent every character in a document list them all and assign each a binary string. Character set is a list of characters and the codes used to represent each one. Experts in the computer industry agree on the specifics of a character sit, thereby creating a standard for sharing data. Ascii: american standard code for information interchange. Ascii originally used seven bits to represent each character, allowing 128 unique characters. Later extended ascii evolved so that all eight bits were used (represent lines , symbols, and letters with accents) Even the extended ascii is not enough for international use. Unicode uses 16 bits per character and can represent 216, or over 65 thousand characters (unicode. org) (searchable data)