find out or check out if your computer or laptop has a virus or affected by virus

Dear friend,

Happy to see you’re here. Come, let us find out if your computer or laptop is affected by virus. If you can answer "yes" to any of the following questions, your computer might have a virus.

Is your computer running very slowly? A common symptom of a virus is much slower than normal computer performance. However, there can be other reasons for slow performance, including a hard disk that needs defragmenting, a computer that needs more memory (RAM), or the existence of spyware or adware.

Are you getting unexpected messages, or are programs starting automatically? Some viruses can cause damage to Windows or some of your programs. The results of this damage might include messages appearing unexpectedly, programs starting or closing automatically, or Windows shutting down suddenly.

Is your modem or hard disk working overtime? An e‑mail virus works by sending many copies of itself by e‑mail. One indicator of this is that the activity light on your broadband or external modem is constantly lit; another is the sound of your computer's hard disk continually working. These are not always symptoms of a computer virus, but when combined with other problems, can indicate a virus infection.

To check for viruses, scan your computer with an antivirus program. New viruses appear every day, so keeping your antivirus program updated is important. For more information about computer security, go to the Security at Home page on the Microsoft website. To learn how to remove malicious software from your computer, go to the Microsoft Malicious Software Removal Tool webpage.

 

If you like this post, Share with your friends on Google+, Facebook, Twitter and so on. If you have doubts and comments, write them in the comment box.

Ultimate Guides on Earn Money Online:
All South Tamil Actress Rashi Khanna with Photos Heroine Hd Hot Pictures Gallery

Introduction to menus, buttons, bars and boxes in windows (Windows 7)

Dear friend,

Happy to see you here. Come, let us learn about menus, buttons, bars and boxes in windows and the things relating to them. In this post, we learn about Using menus, Using scroll bars, Using command buttons, Using option buttons, Using check boxes, Using sliders, Using text boxes, Using drop-down lists, Using list boxes and Using tabs.

Menus, buttons, scroll bars, and check boxes are examples of controls that you operate with your mouse or keyboard. These controls allow you to select commands, change settings, or work with windows. This section describes how to recognize and use controls that you'll encounter frequently while using Windows.

Using menus

Most programs contain dozens or even hundreds of commands (actions) that you use to work the program. Many of these commands are organized under menus. Like a restaurant menu, a program menu shows you a list of choices. To keep the screen uncluttered, menus are hidden until you click their titles in the menu bar, located just underneath the title bar.

To choose one of the commands listed in a menu, click it. Sometimes a dialog box appears, in which you can select further options. If a command is unavailable and cannot be clicked, it is shown in gray.

Some menu items are not commands at all. Instead, they open other menus. In the following picture, pointing to "New" opens a submenu.

Some menu commands open submenus

If you don't see the command you want, try looking at another menu. Move your mouse pointer along the menu bar and its menus open automatically; you don't need to click the menu bar again. To close a menu without selecting any commands, click the menu bar or any other part of the window.

Recognizing menus isn't always easy, because not all menu controls look alike or even appear on a menu bar. So how can you spot them? When you see an arrow next to a word or picture, you're probably looking at a menu control. Here are some examples:

Examples of menu controls

Tips

• If a keyboard shortcut is available for a command, it is shown next to the command.

• You can operate menus using your keyboard instead of your mouse.

Using scroll bars

When a document, webpage, or picture exceeds the size of its window, scroll bars appear to allow you to see the information that is currently out of view. The following picture shows the parts of a scroll bar.

Horizontal and vertical scroll bars

To use a scroll bar:

• Click the up or down scroll arrows to scroll the window's contents up or down in small steps. Hold down the mouse button to scroll continuously.

• Click an empty area of a scroll bar above or below the scroll box to scroll up or down one page.

• Drag a scroll box up, down, left, or right to scroll the window in that direction.

Tip

• If your mouse has a scroll wheel, you can use it to scroll through documents and webpages. To scroll down, roll the wheel backward (toward you). To scroll up, roll the wheel forward (away from you).

Using command buttons

A command button performs a command (makes something happen) when you click it. You'll most often see them in dialog boxes, which are small windows that contain options for completing a task. For example, if you close a Paint picture without saving it first, you might see a dialog box like this.

Dialog box with three buttons

To close the picture, you must first click either the Save or Don't Save button. Clicking Save saves the picture and any changes you've made, and clicking Don't Save deletes the picture and discards any changes you've made. Clicking Cancel dismisses the dialog box and returns you to the program.

Tip

• Pressing Enter does the same thing as clicking a command button that is selected (outlined).

Outside of dialog boxes, command buttons vary in appearance, so it's sometimes difficult to know what's a button and what isn't. For example, command buttons often appear as small icons (pictures) without any text or rectangular frame.

The most reliable way to determine if something is a command button is to rest your pointer on it. If it "lights up" and becomes framed with a rectangle, you've discovered a button. Most buttons will also display some text about their function when you point to them.

If a button changes into two parts when you point to it, you've discovered a split button. Clicking the main part of the button performs a command, whereas clicking the arrow opens a menu with more options.

Split buttons change into two parts when you point to them

Using option buttons

Option buttons allow you to make one choice among two or more options. They frequently appear in dialog boxes. The following picture shows two option buttons. The "Color" option is selected.

Clicking a button selects that option

To select an option, click one of the buttons. Only one option can be selected.

Using check boxes

Check boxes allow you to select one or more independent options. Unlike option buttons, which restrict you to one choice, check boxes allow you to choose multiple options at the same time.

Click an empty check box to select that option

To use check boxes:

• Click an empty square to select or "turn on" that option. A check mark will appear in the square, indicating that the option is selected.

• To turn off an option, clear (remove) its check mark by clicking it.

• Options that currently can't be selected or cleared are shown in gray.

Using sliders

A slider lets you adjust a setting along a range of values. It looks like this.

Moving the slider changes the pointer speed

A slider along the bar shows the currently selected value. In the example shown above, the slider is positioned midway between Slow and Fast, indicating a medium pointer speed.

To use a slider, drag the slider toward the value that you want.

Using text boxes

A text box allows you to type information, such as a search term or password. The following picture shows a dialog box containing a text box. We've entered "bear" into the text box.

Example of a text box in a dialog box

A blinking vertical line called the cursor indicates where text that you type will appear. In the example, you can see the cursor after the "r" in "bear." You can easily move the cursor by clicking the new position. For example, to add a word before "bear," you would first move the cursor by clicking before the "b."

If you don't see a cursor in the text box, it means the text box isn't ready for your input. Click the box first, and then start typing.

Text boxes that require you to enter a password will usually hide your password as you type it, in case someone else is looking at your screen.

Text boxes for passwords usually hide the password

Using drop-down lists

Drop-down lists are similar to menus. Instead of clicking a command, though, you choose an option. When closed, a drop-down list shows only the currently selected option. The other available options are hidden until you click the control, as shown below.

A drop-down list shown closed (left), and open (right)

To open a drop-down list, click it. To choose an option from the list, click the option.

Using list boxes

A list box displays a list of options that you can choose from. Unlike a drop-down list, some or all of the options are visible without having to open the list.

List box

To choose an option from the list, click it. If the option you want isn't visible, use the scroll bar to scroll the list up or down. If the list box has a text box above it, you can type the name or value of the option instead.

Using tabs

In some dialog boxes, options are divided into two or more tabs. Only one tab, or set of options, can be viewed at a time.

Tabs

The currently selected tab appears in front of the other tabs. To switch to a different tab, click the tab.

If you like this post, Share with your friends on Google+, Facebook, Twitter and so on. If you have doubts and comments, write them in the comment box.

Ultimate Guides on Earn Money Online:
All South Tamil Actress Rashi Khanna with Photos Heroine Hd Hot Pictures Gallery

Learn to shutdown your Computer properly and safely

Dear Friend,

Happy to see you here. Come, let us learn about shutting down the Computer. In this post, Use the Shut down button on the Start menu, Using sleep, When to shut down and Laptop users: Close the lid.

When you're finished using your computer, it's important to turn it off properly—not only to save energy, but also to help keep your computer more secure and to ensure that your data is saved. There are three ways to turn off your computer: pressing your computer's power button, using the Shut down button on the Start menu, and, if you have a laptop, closing the lid.

Use the Shut down button on the Start menu

To turn off your computer using the Start menu, click the Start button , and then, in the lower-right corner of the Start menu, click Shut down.

When you click Shut down, your computer closes all open programs, along with Windows itself, and then completely turns off your computer and display. Shutting down doesn't save your work, so you must save your files first.

Click the arrow next to the Shut down button for more options

To change the Shut down button settings

By default, the Shut down button shuts down your computer. But you can choose which action you want the Power button to take.

1. On the Start Menu tab, choose the action that you want to use, and then click OK.

   • If you are connected to a network domain, it's possible that settings made by your network administrator (Group Policy settings) will prevent you from completing the previous steps.

   • Because you are connected to a network domain, it's possible that settings made by your network administrator (Group Policy settings) will prevent you from completing the previous steps.

There's one other form that the Shut down button can take. If you've set your computer to receive automatic updates, and the updates are ready to be installed, the Shut down button will look like this.

The Shut down button (install updates and shut down)

When you click the Shut down button, Windows installs the updates and then shuts down your computer.

Note

• Starting your computer after it has been shut down takes longer than waking your computer from sleep.

Using sleep

You can choose to make your computer sleep instead of shutting it down. When your computer goes to sleep, the display turns off and often the computer's fan stops. Usually, a light on the outside of your computer case blinks or turns yellow to indicate that the computer is asleep. The whole process takes only a few seconds.

Because Windows will remember what you were doing, there's no need to close your programs and files before making your computer sleep. But it's always a good idea to save your work before putting the computer into any low-power mode. Then the next time you turn on your computer (and enter your password, if required), the screen will look exactly as it did when you turned off your computer.

To wake your computer, press the power button on your computer case. Because you don't have to wait for Windows to start, your computer wakes within seconds and you can resume work almost immediately.

Note

• When your computer is asleep, it uses a very small amount of power to maintain your work in its memory. If you're using a laptop, don't worry—the battery won't be drained. After the computer has been sleeping for several hours, or if the battery is running low, your work is saved to the hard disk, and then your computer turns off completely, drawing no power.

When to shut down

Even though making your computer sleep is the fastest way to turn it off, and the best option for resuming work quickly, there are certain times when you need to shut down:

• You are adding or upgrading the hardware inside your computer—such as installing memory, a disk drive, a sound card, or a video card. Shut down the computer, and then disconnect it from its power source before proceeding with the upgrade.

• You are adding a printer, monitor, external drive, or other hardware device that does not connect to a universal serial bus (USB) or IEEE 1394 port on your computer. Shut down the computer before connecting the device.

Note

• When adding hardware that uses a USB cable, you don't need to turn off the computer first. Most newer devices use USB cables. A USB cable looks like this:

  USB cable

Laptop users: Close the lid

If you have a laptop, there's an even easier way to turn off your computer: Close the lid. You can choose whether your computer sleeps, shuts down, or enters another power-saving state. See Change what happens when you close your laptop.

If you prefer, you can turn off your laptop by pressing the power button on its case. See Change what happens when you press the power button on your computer.

If you like this post, Share with your friends on Google+, Facebook, Twitter and so on. If you have doubts and comments, write them in the comment box.

Ultimate Guides on Earn Money Online:
All South Tamil Actress Rashi Khanna with Photos Heroine Hd Hot Pictures Gallery

Parts of Keyboard, Keyboard Shortcuts, Navigation, Numeric and Odd Keys, Keyboard Tips

learn about Keyboard. In this post, we learn about How the keys are organized, Typing text, Using keyboard shortcuts, Using navigation keys, Using the numeric keypad, Three odd keys, Other keys and Tips for using your keyboard safely.

Whether you're writing a letter or calculating numerical data, your keyboard is the main way to enter information into your computer. But did you know you can also use your keyboard to control your computer? Learning just a few simple keyboard commands (instructions to your computer) can help you work more efficiently. This article covers the basics of keyboard operation and gets you started with keyboard commands.

How the keys are organized

The keys on your keyboard can be divided into several groups based on function:

• Typing (alphanumeric) keys. These keys include the same letter, number, punctuation, and symbol keys found on a traditional typewriter.
  
• Control keys. These keys are used alone or in combination with other keys to perform certain actions. The most frequently used control keys are Ctrl, Alt, the Windows logo key , and Esc.
  
• Function keys. The function keys are used to perform specific tasks. They are labeled as F1, F2, F3, and so on, up to F12. The functionality of these keys differs from program to program.
  
• Navigation keys. These keys are used for moving around in documents or webpages and editing text. They include the arrow keys, Home, End, Page Up, Page Down, Delete, and Insert.
  
• Numeric keypad. The numeric keypad is handy for entering numbers quickly. The keys are grouped together in a block like a conventional calculator or adding machine.

The following illustration shows how these keys are arranged on a typical keyboard. Your keyboard layout might be different.

How the keys are arranged on a keyboard

Typing text

Whenever you need to type something in a program, e‑mail message, or text box, you'll see a blinking vertical line That's the cursor, also called the insertion point. It shows where the text that you type will begin. You can move the cursor by clicking in the desired location with the mouse, or by using the navigation keys (see the "Using navigation keys" section of this article).

In addition to letters, numerals, punctuation marks, and symbols, the typing keys also include Shift, Caps Lock, Tab, Enter, the Spacebar, and Backspace.

Key name          and     How to use it

Shift                  

Press Shift in combination with a letter to type an uppercase letter. Press Shift in combination with another key to type the symbol shown on the upper part of that key.

Caps Lock

Press Caps Lock once to type all letters as uppercase. Press Caps Lock again to turn this function off. Your keyboard might have a light indicating whether Caps Lock is on.

Tab

Press Tab to move the cursor several spaces forward. You can also press Tab to move to the next text box on a form.

Enter

Press Enter to move the cursor to the beginning of the next line. In a dialog box, press Enter to select the highlighted button.

Spacebar

Press the Spacebar to move the cursor one space forward.

Backspace

Press Backspace to delete the character before the cursor, or the selected text.

Using keyboard shortcuts

Keyboard shortcuts are ways to perform actions by using your keyboard. They're called shortcuts because they help you work faster. In fact, almost any action or command you can perform with a mouse can be performed faster using one or more keys on your keyboard.

In Help topics, a plus sign (+) between two or more keys indicates that those keys should be pressed in combination. For example, Ctrl+A means to press and hold Ctrl and then press A. Ctrl+Shift+A means to press and hold Ctrl and Shift and then press A.

Find program shortcuts

You can do things in most programs by using the keyboard. To see which commands have keyboard shortcuts, open a menu. The shortcuts (if available) are shown next to the menu items.

Keyboard shortcuts appear next to menu items.

Choose menus, commands, and options

You can open menus and choose commands and other options using your keyboard. In a program that has menus with underlined letters, press Alt and an underlined letter to open the corresponding menu. Press the underlined letter in a menu item to choose that command. For programs that use the Ribbon, such as Paint and WordPad, pressing Alt overlays (rather than underlines) a letter that can be pressed.

Press Alt+F to open the File menu, then press P to choose the Print command.

This trick works in dialog boxes too. Whenever you see an underlined letter attached to an option in a dialog box, it means you can press Alt plus that letter to choose that option.

Useful shortcuts

The following table lists some of the most useful keyboard shortcuts.

Press this                                             to  do this

Windows logo key   Open the Start menu

Alt+Tab  Switch between open programs or windows

Alt+F4  Close the active item, or exit the active program

Ctrl+S  Save the current file or document (works in most programs)

Ctrl+C Copy the selected item

Ctrl+X  Cut the selected item

Ctrl+V  Paste the selected item

Ctrl+Z  Undo an action

Ctrl+A  Select all items in a document or window

F1  Display Help for a program or Windows

Windows logo key +F1  Display Windows Help and Support

Esc  Cancel the current task 

Application key   Open a menu of commands related to a selection in a program. Equivalent to right-clicking the selection.

Using navigation keys

The navigation keys allow you to move the cursor, move around in documents and webpages, and edit text. The following table lists some common functions of these keys.

Press this                                                                 To do this

Left Arrow, Right Arrow, Up Arrow, or Down Arrow

Move the cursor or selection one space or line in the direction of the arrow, or scroll a webpage in the direction of the arrow

Home

Move the cursor to the beginning of a line or move to the top of a webpage

End

Move the cursor to the end of a line or move to the bottom of a webpage

Ctrl+Home

Move to the top of a document

Ctrl+End

Move to the bottom of a document

Page Up

Move the cursor or page up one screen

Page Down

Move the cursor or page down one screen

Delete

Delete the character after the cursor, or the selected text; in Windows, delete the selected item and move it to the Recycle Bin

Insert

Turn Insert mode off or on. When Insert mode is on, text that you type is inserted at the cursor. When Insert mode is off, text that you type replaces existing characters.

Using the numeric keypad

The numeric keypad arranges the numerals 0 though 9, the arithmetic operators + (addition), - (subtraction), * (multiplication), and / (division), and the decimal point as they would appear on a calculator or adding machine. These characters are duplicated elsewhere on the keyboard, of course, but the keypad arrangement allows you to rapidly enter numerical data or mathematical operations with one hand.

Numeric keypad

To use the numeric keypad to enter numbers, press Num Lock. Most keyboards have a light that indicates whether Num Lock is on or off. When Num Lock is off, the numeric keypad functions as a second set of navigation keys (these functions are printed on the keys next to the numerals or symbols).

You can use your numeric keypad to perform simple calculations with Calculator.

Operate Calculator with the numeric keypad

1. Check your keyboard light to see if Num Lock is on. If it isn't, press Num Lock.
   
2. Using the numeric keypad, type the first number in the calculation.
   
3. On the keypad, type + to add, - to subtract, * to multiply, or / to divide.
   
4. Type the next number in the calculation.
   
5. Press Enter to complete the calculation.

Three odd keys

So far, we've discussed almost every key you're likely to use. But for the truly inquisitive, let's explore the three most mysterious keys on the keyboard: PrtScn, Scroll Lock, and Pause/Break.

PrtScn (or Print Screen)

A long time ago, this key actually did what it says—it sent the current screen of text to your printer. Nowadays, pressing PrtScn captures an image of your entire screen (a "screen shot") and copies it to the Clipboard in your computer's memory. From there you can paste it (Ctrl+V) into Microsoft Paint or another program and, if you want, print it from that program.

More obscure is SYS RQ, which shares the key with PrtScn on some keyboards. Historically, SYS RQ was designed to be a "system request," but this command is not enabled in Windows.

Tip

• Press Alt+PrtScn to capture an image of just the active window, instead of the entire screen.

ScrLk (or Scroll Lock)

In most programs, pressing Scroll Lock has no effect. In a few programs, pressing Scroll Lock changes the behavior of the arrow keys and the Page Up and Page Down keys; pressing these keys causes the document to scroll without changing the position of the cursor or selection. Your keyboard might have a light indicating whether Scroll Lock is on.

Pause/Break

This key is rarely used. In some older programs, pressing this key pauses the program or, in combination with Ctrl, stops it from running.

Other keys

Some modern keyboards come with "hot keys" or buttons that give you quick, one-press access to programs, files, or commands. Other models have volume controls, scroll wheels, zoom wheels, and other gadgets. For details about these features, check the information that came with your keyboard or computer, or go to the manufacturer's website.

Tips for using your keyboard safely

Using your keyboard properly can help avoid soreness or injury to your wrists, hands, and arms, particularly if you use your computer for long periods of time. Here are some tips to help you avoid problems:

• Place your keyboard at elbow level. Your upper arms should be relaxed at your sides.
  
• Center your keyboard in front of you. If your keyboard has a numeric keypad, you can use the space bar as the centering point.
• Type with your hands and wrists floating above the keyboard, so that you can use your whole arm to reach for distant keys instead of stretching your fingers.
  
• Avoid resting your palms or wrists on any type of surface while typing. If your keyboard has a palm rest, use it only during breaks from typing.
  
• While typing, use a light touch and keep your wrists straight.
  
• When you're not typing, relax your arms and hands.
  
• Take short breaks from computer use every 15 to 20 minutes.

Ultimate Guides on Earn Money Online:
All South Tamil Actress Rashi Khanna with Photos Heroine Hd Hot Pictures Gallery

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Learn about the parts of Computer. In this post, we learn about System unit, Storage, Mouse, Keyboard, Monitor, Printer, Speakers and Modem.

If you use a desktop computer, you might already know that there isn't any single part called the "computer." A computer is really a system of many parts working together. The physical parts, which you can see and touch, are collectively called hardware. (Software, on the other hand, refers to the instructions, or programs, that tell the hardware what to do.)

The following illustration shows the most common hardware in a desktop computer system. Your system might look a little different, but it probably has most of these parts. A laptop computer has similar parts but combines them into a single, notebook-sized package.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Desktop computer system

Let's take a look at each of these parts.

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. Another component is random access memory (RAM), which temporarily stores information that the CPU uses while the computer is on. The information stored in RAM is erased when the computer is turned off.

Almost every other part of your computer connects to the system unit using cables. The cables plug into specific ports (openings), typically on the back of the system unit. Hardware that is not part of the system unit is sometimes called a peripheral device or device.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

System unit

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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Hard disk drive

CD and DVD drives

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; many CD drives can 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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

CD

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.

Tip

• If you have a recordable CD or DVD drive, periodically back up (copy) your important files to CDs or DVDs. That way, if your hard disk ever fails, you won't lose your data.

Floppy disk drive

Floppy disk drives store information on floppy disks, also called floppies or diskettes. Compared to CDs and DVDs, floppy disks can store only a small amount of data. They also retrieve information more slowly and are more prone to damage. For these reasons, floppy disk drives are less popular than they used to be, although some computers still include them.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Floppy disk

Why are these disks called "floppy" disks? The outside is made of hard plastic, but that's just the sleeve. The disk inside is made of a thin, flexible vinyl material.

Mouse

A mouse is a small device used to point to 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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Mouse

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.

Mouse pointers

When you move the mouse with your hand, a pointer on your screen moves in the same direction. (The pointer's appearance might change depending on where it's positioned on your screen.) When you want to select an item, you point to the item and then click (press and release) the primary button. Pointing and clicking with your mouse is the main way to interact with your computer.

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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Keyboard

You can also use your keyboard to perform many of the same tasks you can perform with a mouse.

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 LCD (liquid crystal display) monitors. Both types produce sharp images, but LCD monitors have the advantage of being much thinner and lighter.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

LCD monitor (left); CRT monitor (right)

Printer

A printer transfers data from a computer onto paper. You don't need a printer to use your computer, but having one allows you to print e‑mail, cards, invitations, announcements, and other material. Many people also like being able to print their own 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 in 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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Inkjet printer (left); laser printer (right)

Speakers

Speakers are used to play 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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Computer speakers

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.

Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Cable modem

Tagged in:
Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor, Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor, Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor, Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor, Parts of Computer, Hardware, System Units, Storage Devices, Mouse, Keyboard, Monitor

Ultimate Guides on Earn Money Online:
All South Tamil Actress Rashi Khanna with Photos Heroine Hd Hot Pictures Gallery