🌏 PARTS OF A COMPUTER. Page 2
🌏 System Unit:- The system unit is the core of a computer system. Usually, it's a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU), or microprocessor,which acts as the "brain" of your computer.
🌏 Storage:- Your Computer has one or more disk drives- devices that store information on a metal or plastic disk. The disk preserves the information even when your computer is turned off.
🌏 Hard Disk Drive:- Your computer's hard disk drive stores information on a hard disk- a rigid platter or stack of platters with a magnetic surface. Because hard disks can hold massive amounts of information, they usually serve as your computer's primary means of storage, holding almost all of your programs and files. The hard disk drive is normally located inside the system unit.
🌏 CD and DVD Drive:- Nearly all computers today come equipped with a CD or DVD drive, usually located on the front of the system unit. CD drives use lasers to read (retrieve) data from a CD and also write (record) data onto CDs. If you have a recordable disk drive, you can store copies of your files on blank Cds. You can also use a CD drive to play music CDs on your computer.
DVD drives can do everything that CD drives can, plus read DVDs. If you have a DVD drive, you can watch movies on your computer. Many DVD drives can record data onto blank DVDs.
🖲 MOUSE:- A Mouse is a small device used to point and select items on your computer screen. Although mice come in many shapes, the typical mouse does look a bit like an actual mouse, It's small, oblong, and connected to the system unit by a long wire that resembles a tail. Some newer mice are wireless. A mouse usually has two buttons: A primary button (usually the left button) and a secondary button. Many mice also have a wheel between the two buttons, which allows you to scroll smoothly through screens of information.
⌨️ Keyboard :- A Keyboard is used mainly for typing text into your computer. Like the Keyboard on a typewriter. It has keys for letters and numbers, but it also has special keys:
⌨ The function keys, found on the top row, perform different functions depending on where they are used.
⌨ The numeric keypad, located on the right side of most keyboards, allows you to enter numbers quickly.
⌨ The navigation keys, such as the arrow keys, allow you to move your position within a document or webpage.
💻 MONITOR:- A Monitor displays information in visual form, using text and graphics. The portion of the monitor that displays the information is called the screen. Like a television screen, a computer screen can show still or moving pictures.
There are two basic types of monitors: CRT (Cathode ray Tube) monitors and the newer L.C.D (Liquid Crystal Displays) monitors. Both types produce sharp images, but LCD monitors have the advantage of being much thinner and lighter.
📠 PRINTER:- A Printer transfers data from a computer onto paper. You don't need a Printer by using your computer, but having one allows you to print e-mail, cards, invitations, and other material. Many people also like being able to print their photos at home.
The two main types of Printers are Inkjet Printers and Laser Printers Inkjet Printers are the most popular printers for the home. They can print in black and white or full color and can produce high-quality photographs when used with special paper. Laser Printers are faster and generally better able to handle heavy use.
🌏 SPEAKERS:- Speakers are used to playing sound. They can be built into the system unit or connected with cables. Speakers allow you to listen to music and hear sound effects from your computer.
🌏 MODEM:- To connect your computer to the Internet, you need a modem. A Modem is a device that sends and receives computer information over a telephone line or high-speed cable. Modems are sometimes built into the system unit, but higher-speed modems are usually separate components.
🌏 What is a File? :- A File is an item that contains an information-for example, text or images, or music. When opened, a file can look very much like a text document or a picture. Files are represented with icons.
🌏 What is Folder? :- A Folder is a container that you can use to store files. Folders can also store other folders. A folder within a Folder is usually called a subfolder. You can create any number of subfolders, and each can hold any number of files and additional subfolders. Folders are represented with icons.
🌏 What is a Desktop?:- The Desktop is the main screen area that you see after you turn on your computer and log on to windows.
🌏 What is Taskbar?:- The name of the Taskbar is System tray. The Taskbar sits at the bottom of your screen. It shows you which programs are running and allows you to switch between them. It also contains the Start button, which you can use to access programs, folders, and computer settings.
🌏 What is Icon?:- Icons are small pictures that represent files, folders, programs, and other items which are displayed on the Desktop screen.
🌏 What is Computer Folder?:- From the Computer Folder can access locations such as hard disks, CD or DVD drives. You can also access other devices that might be connected to your computer, such as external hard drives and USB flash drives. It is a System folder that contains all files and folders of the System.
🌏 What is Document Folder?:- It is a System folder that contains Application Software Files and folders of the System.
🌏 What is Recycle Bin Folder?:- It is a System Folder. When you delete a file or folder, it doesn't get deleted right away-it goes to the Recycle Bin. That's a good thing because if you ever change your mind and decide you need a deleted file, you can get it back.
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