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Operating Systems & File Management

FOR 201 Microcomputer applications. Operating Systems & File Management. Lecture Content. Operating System Today’s Operating Systems File Basics File Management Application Software. Operating Systems . Operating System.

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Operating Systems & File Management

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  1. FOR 201 Microcomputer applications Operating Systems & File Management

  2. Lecture Content Operating System Today’s Operating Systems File Basics File Management Application Software

  3. Operating Systems

  4. Operating System A software that acts as the master controller for all activities that take place within a computer system

  5. Operating System Activities

  6. User Interfaces The combination of hardware and software that helps people and computers communicate with each other

  7. User Interfaces • Menus, submenus, and dialog boxes

  8. The Boot Process During the boot process, the operating system is loaded into RAM Your computer’s small bootstrap program is built into special ROM circuitry housed in the computer’s system unit

  9. Today’s Operating Systems Microsoft Windows Mac OS UNIX and Linux Chrome DOS Handheld Operating Systems

  10. Microsoft Windows

  11. Mac OS Mac OS X interface includes all the standard elements of a User Interface (GUI), including icons, menus, windows, and taskbars.

  12. UNIX and Linux Several graphical interfaces can be chosen. Here is KDE graphical desktop. Several Web sites offer a Linux distribution, which is a package that contains the Linux kernel, system utilities and applications (i.e., UBUNTU)

  13. DOS Disk Operating System First operating system

  14. Handheld Operating Systems

  15. File Basics File and Files Management

  16. File Can be considered as the evolution of the paper documents Paper documents are kept in files, stored in folders File=COLLECTION OF RELATED INFORMATION

  17. Directories and Folders A way of organizing files and other directories

  18. File Names and Extensions • You must adhere to file-naming conventions when saving files • Maximum length • Prohibited characters • No reserved words • Case sensitivity • File extensions are usually related to the file format • Native file format

  19. File Directories and Folders d:\coUrsEs\FoR201\Beethoven - Symphony No5 1 Mov.mp3 d:\courses\FOR201\for201.jpg • An operating system maintains a directory for each disk, tape, CD, DVD, or USB flash drive • Root directory • Subdirectory • Depicted as folders • A computer’s file location is defined by a file specification, or path

  20. File Formats Paint (Windows) A particular way to encode information stored in a computer file.

  21. File Formats Convert a file from one format to another Open it with an application that supports both formats Then use the Save As dialog box to select an alternative file format.

  22. File Management Metaphors • Storage metaphors help you visualize and mentally organize the files on your disks • Logical storage models

  23. Application-based File Management Applications typically provide a way to open files and save them in a specific folder on a storage device (such as Word or Excel)

  24. Application-based File Management The Save As dialog box not only helps you name a file and designate its destination, but .. allows you to rename files, delete files, create folders, and rename folders.

  25. File Management Utilities File management utilities show you the files stored on your disks Ex. Windows Explorer

  26. Windows Explorer Windows Explorer makes it easy to drill down through the levels of the directory hierarchy to locate a folder or file.

  27. Windows Explorer • Windows Explorer allows you to manipulate files and folders in the following ways: • Rename • Copy • Move • Delete

  28. File Management Tips Use descriptive names Assign short names to files or directories Maintain file extensions Group similar files Organize your folders from the top down Do not mix data files and program files

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