1. 4/26: Software & Programs Roll call Video Lecture Evaluations

2. Starting a Program. Click on its icon. CPU looks for the executable file on the path of record. Shortcuts: pointers to the program.

3. The Program Is Moved Into RAM. The program is moved into RAM for quick access. The CPU receives the address of the program in RAM, so it can use it.

4. Saving a File. Until you click on “Save,” any changes you have made reside in the RAM. After you click it, the RAM information is backed up to a drive. Q: If the power goes out, what happens to the file in RAM? Why?

5. File Extensions (Just a Few)..Exe - executable.Dll - dynamic link library.Ole - object linking & embedding.Dde - dynamic data exchange.Ini - configuration specifications Reference libraries for extensions: http://www2.crosswinds.net/san-marino/~jom/filex/extensio.htm.Com - command file.Bat - batch file.Ini - configuration file.Bin - binary file.Log - log file.Txt - text file.Rtf - rich text file.Hlp - help file

6. Investigating File Extensions. Open Windows Explorer. Right-click the file. Choose “Properties.” …OR... Open Windows Explorer. Go to View - Options - File Types.

7. Wednesday: Putting It All Together. The whole is greater than the sum of its parts: An holistic view of the computer.