EECS 1520 Study Guide - Midterm Guide: Root Directory, Filename Extension, Working Directory

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

Document Summary

Editing these files with different programs can have undesirable results. Trying to open a picture file in a text will show binary numbers. If you try to change its content, a change in the image will occur. Editing an excel spreadsheet in a text editor: binary info represented as hexadecimal characters. It corrupts the data to such an extent that we cannot recover the data anymore. Suffix at the end of a filename, e. g. , assignment. docx. Describes the file type or kind of data contained in the file, used by operating system to know what program is supposed to be used to open. Os associates file extensions with the program meant to open the file. Documents that can be opened by microsoft: . docx, . xlsx, etc. Os x also uses creator codes in the file to determine which program to start when a file is double-clicked. Same purpose as file extension but uses no extension name.