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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How To Using Applications in Windows

Windows XP offers a set of utility programs, or applications, that are used to perform specirfi tasks. Examples of these programs include Notebook, Calculator and adte and Time properties. There are also applications you install separately, such as Microsoft Excel.

Starting an application

You can start an application in windows by using the All Programs submenu or the Run command on the Start menu.

Using the programs menu

Installed programs in windows XP are accessed easily using All Programs on the Start menu. There is an application called  notepad that can be used to create and edit text files. The text files created in notepad have a .text extension.

To start Notepad by using the All Programs menu , Click Start, point to All Programs, point to Accessories, and the click notepad.

Using the Run Command

The Run command on the start menu can also be used to start a program or open a file.

To open an application, the Notepad application        .         

 1. On the start menu, click Run. The run dialog box appears.

 2. Type the name of the programs in the open box.

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Using Calculator

The Calculator programs in windows XP is similar to a handheld calculator. You can use programs to perform basic arithmetic operations, such as addition and subtraction, as well as scientific and statistical operations, such as computering averages, logarithms and factorials.

To start Calculator, click Start , point to All programs, point to Accessories, and then click Calculator.

Calculator appears.

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How To Using Applications in Windows

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