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4/26: Software & Programs

4/26: Software & Programs. Roll call Video Lecture Evaluations. Starting a Program. Click on its icon. CPU looks for the executable file on the path of record. Shortcuts : pointers to the program. The Program Is Moved Into RAM. The program is moved into RAM for quick access.

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4/26: Software & Programs

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  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 .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 Reference libraries for extensions: http://www2.crosswinds.net/san-marino/~jom/filex/extensio.htm

  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.

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