EECS 1520 Lecture Notes - Lecture 7: Filename Extension, Microsoft Excel, Graphical User Interface

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Steven Castellucci

Document Summary

Files: containers for related data: contains plain test & non-text, non-text: images, music, video, different data a types require specific program to run (microsoft, adobe) Suffix at tend of file name (e. g. assignment. Docs) shows what program is meant to open file. Describes the file type or kind of data contained in file. Os associated file extension w/program meant to open file. Suffixes for: documents, text-based, images & media: documents (. docxm . xlsx, . pptx, text based (. txt, . c, . java, . html, . xml) Images (. gif, . jpeg, . png: media (. mp3, . mkv, . mp4) O x uses (cid:862)(cid:272)reator (cid:272)odes(cid:863) i(cid:374) file to deter(cid:373)i(cid:374)e whi(cid:272)h progra(cid:373) to start whe(cid:374) file is dou(cid:271)le (cid:272)li(cid:272)ked: similar function to file extension, but are not included in file name. Often depicted graphically in operating system (os) as a file folder. Root directory- at the highest level in file system. Parent directory- containing the subdirectory being referenced. Working directory location you are currently working in or viewing.