Lecture 3 Data Representation
The Transition from TextBased Computing to the Graphical OS In the early 1980s desktop computers began to be introduced with GUI Operating Systems The Apple Lisa and Macintosh as well as Microsofts Windows OS replaced typed text only commands for file and software application management with more userfriendly graphical manipulations with a new type of controller the mouse Using the mouse a user could move a file into a directory by clicking and dragging a graphical image of a file into the graphical image of a folder These graphical images are associated with the files and directories they represent by standard commands of the OS that have been hidden from the user this is call abstraction
Embed this Presentation
Available Downloads
Download Notice
Download Presentation The PPT/PDF document "Lecture 3 Data Representation" is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.