Terms To Remember

·     Bad sectors are unreadable areas on the disk.

·    Cut or cpied text and graphics are stored in the Clipboard brfore being moved to another location.

·    Compressing a file reduces its size and makes transporting between two users easier.

·    Default refers to a predetermined value used by a program when the user does not specify the value. Default setting are ones predetermined by the program and not set by the user.

·    Extension refer to the second part of the filename, which identifies the type or family of the file.

·    File are computerized document that store information in different forms, such as text and pictures.

·    Formatting means dividing a disk into sectors so the disk can store data.

·    My computer displays the contents of the floppy disk drive, the hard disk drive, the CD-ROM drive and the drives on the network.

·    Partitioning eans sections a part of the hard idsk for storage space.

·    Primary name is the first part of a file name. It is the  name by which a file is identified.

·    Changing the names of file or folders is called Renaming.

·    Shortcuts are pointers to a file or folder stored on a hard disk, CD-ROM or floppy.

·    Folder within a folder is called a Sunfolder.

·    Progarms often create .tmp file, or files that are temporarily used for a purpose. These file may accumulate and take up disk space. They should be deleted regularly.

·    Wildcard characters include? and *. They are used to seaech for files when you do not know all of the charachard disk drive

·    Windown Explorer allows you to view the contents of your computer in hierarchical display.it also allows you manage and manipulate the contents of your computer.

          Worksheet are files create in Excel.

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Using Windowns Explorer To view the File Structure

Windown Explorer displays the contents of the entire system in hierarchical structure. To open windown explorer, click Start, point to All Programs, points to Accessories, and then click Windown Explorer.

                   Windowns Explorer is divided into two panes. The left pane contains a list of drives and folders on your computer. The right pane displays the contents of the selected drive or folder. By using these two panes, you can browser through the contents of your computer in a single windown.

                   To view the contentd of a drive, click the icon for the drive in the left pane. The list of folders in the selected drive is displayed in the left pane. Both the folders and the files in the drive are displayed in the roght pane.

                   To view the contents of a folder, click the folder icon in the left pane. When you click a folder icon, it changes to an open folder icon ,and the contents of the folder are displayed in the right pane.

                    A plus next to a folder icon indicates th presence og subfolders in that folder. Click the sign to expand the folder. The sign to a sign and the subfolders are displayed in the left pane. To display the subfolder and files in the right pane, you need to click the folder icon.

                   To open a subfolder or a file from thre right pane, double-click the corresponding icon.www.paisa.ga

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Terms to Remember

Ø    A COMPUTER is an electronic device that can perform activities that involve mathematical, logical and graphical manipulations.

Ø    DESKTOP COMPUTER are computers that are usually placed on desks or tables.

Ø    HANDHELD  computer are small portable computers designed to fit your pocket. They are typically not as powerful as desktops or notebooks.

Ø    HTML is the mani language used to create web Pages.

Ø    INFORMATION TECHNOLOGY is the term used to refer to the subjects related to creating,managing,processing and exchanging information.

Ø    The INTERNET is an interconnection of thousands of computers across the globe.

Ø    LAPTOP COMPUTER are small portable computers weighing a few kilograms. Modern laotop are often called notebook computer.

Ø    LIQUID CRYSTAL DISPLAY or lcd, is a ty[e of display used for laptop an d notebook computer and also in digital watches.

Ø    A MULTIMEDIA PROGRAM is a program  that uses a combaination of text,graphics, sound and video.

Ø    A NEWSGROUP is an online discussion forum where the user can post and view messages.

Ø    A PERSONAL COMPUTER is a computer designed to be user by one individual at a time.

Ø    A PRORAM is a set of instructions that enables a computer to perform a given task.

Ø    A TABLET PC is a type of notebook computer that allows the user to task notes on the screen using a special pen.

Ø    A UNIFORM RESOURCE LOCATOR, or url, is the global address of documents and other resources on the web.

Ø    The term WEB LINK refers to a uniform Resource locator5(URL).

Ø    A WEB PAGE is a document on the world wide web.

Ø    A WB SITE is a location on the world wide web.

Ø    The WORLD WIDE WEB  is a system of servers on the internet that supports documents formatted in Hypertext Markup Language()HTML.

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Viewing Contents of Your Computer

My Computer displays the contents of the floppy disk drive,the hard disk drive, the CD-ROM drive and the drives on the network.
To open My Computer:
1.Click Start,and then click My Computer.
   The My Computer windown is displayed. It has two panes, the left pane and the right pane. The left pane contains links to Control panel, My network places and My Documents. It also provides quick access to commonly used system tasks, such add or Remove Programs.
There are two sections on the right pane of My Computer.
a. HARD DISK DRIVES lists the hard disk partitions available on the computer. Here,the hard disk drive has been partitioned into two drives,drive c and drive D.
b.DEVICES WITH REMOVABLE STORAGE lists the floppy drive, CD-ROM drive and other re.movable storage drives, if any.
2. double-click a drive or folder to view its contents.....................

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Working with Disks, Drives and Folders

Disks and Drivers

A computer user disk drives to store information. Floppy disk drives, hard disk drives and CD-ROM drives are thew types of drives used to store information. Each idsk drive is identified by a name, which is called the drive name. a drive name can be any letter of the alphabet. The floppy disk drive is usually referred to as drive A.

You can compare a hard disk drive with that of a storage home. In a storage house, you can find partitions for storing different types of goods. The partition will be labeled according to the type of goods being stored in them. Similary, a hard disk drive can be divided into a number of separate sections, where each section acts like separate disk drive. This process of dividing the physical hard disk driveinot various logical sections for organization is called partitioning. Each section of the hard disk drive is called a partition.

Organizing Data

Consider this scenation. As a teacher, you handle subjects for different. If you were to write down the notes for all classes in the same notebook, it might be difficult to find class specific note when you needed the .you might have to search page by page to find the information you were looking for.

Similarly, if all the information on a computer were stored together, it would be difficult to find it every time you needed information. Hence, computers store data and information as files.files are computerized documents that store information in different forms, such as text andpictures. The bitmap images you created in paint and the presentations you created in powerpoint are examples of files. Each file stored on a computer has a name to identify it. This is called the file name. All files have two parts in their names: the primary name and the extension.

Primary name

This is the first part of the file name. it is the anme by which a file is identified.

Extension

The second part contains the extension of the file name. the identifies the type or family of the file.

An example of a file anme created in word is Lesson1.doc. Here, lesson1 is the primary name of the file and .doc is the extension, an example of a filename in paint is picture.bmp. Here, picture is the primary name and .bmp is the extension.

A file name can contain;

·  Letters

·  Numbers

·  Spaces

·  Special characters, such as the following:{ } [ ] , . ! $ % @.

Though you can use any name for your file, it is always a good practice to give meaningful anmes to your files. By just referring to a file name, you should be adle to know what is stored in the file.

Suppose you maintain the marks, attendance details and notes for each of your classes in separate files . If these files are scattered throughout various places, the the files may be difficult to locate. However, if  the files were stored in a common, organized location, hey would be easier to locate and mainitain. To organize files, windown XP provides the concept of folders. A folder acts as a storage comtainer for files. You can use a folder to stored files about a particul ar topic together in 

Common location. A folder icon   is yellow in color.

Imagine a library in which books on various subjects are shelved together. In such a situtino, searching for a book would be a difficult task . however, if the book for each subject were arranged on separate sheves, it would be easier to find a book. Similarly, if all the files on computer are stored are stored together without organization, they become difficult to locate. It is important to organize the file in folders.

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