5. What is Computer Hardware?
• Computer Hardware is the physical part of the
computer system, the machinery and equipment.
• Parts of the computer “you can see”
6. Examples of Computer Hardware
Monitor: T.V. like screen used to show pictures and words
CPU: Central Processing Unit this is where most of the computer’s calculations take place.
Keyboard: This device is used to type information into the computer and contains the
numbers 0-9.
Click Here for more Examples
7. Mouse: a small device, which you move across the top of the desk to move the
pointer or cursor on the screen.
Printer: used to make a paper copy of the information into the computer.
Scanner: an electronic device that generates a digital representation of an image
for data input to a computer
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8. What is Computer Software?
• Computer Software are programs that tell the computer what to do.
Examples
• Microsoft Word-word processing program
• Microsoft PowerPoint-presentation program
• Microsoft Excel-work book program used to track, calculate, and
analyze numeric data
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The mouse normally has two buttons.
The basic button is on the left.
The right button lets you see pop-up menus (hidden menus).
Some mice have a center button to move the scroll bars.
Point : Move the mouse until the pointer (arrow) reaches the target
Click : Press once on the left button.
Double-click : Press twice quickly on the left button.
Drag : Press the left button and hold while moving the mouse.
The Mouse
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Pointer (mouse) The mouse pointer changes when you do an action or when you are over text, button,
image or other. Here are the changes that you will see most:
Common pointer.
Indicates that you are over a hypertext when you
are on the Internet.
This pointer indicates a movement
This one appears when you « drag » an object.
This pointer indicates that the option is not available
at this moment.
This helps to expand or reduce the size of an object or a
window.
This pointer inserts text.
**Also called the cursor.
This pointer indicates that an operation is in progress.
Please wait for this operation to end.
This pointer enables your to get some information
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Esc Cancels the action in use.
Caps Lock Lets you write in capital letters.
Shift Lets you write in capital letters or use the symbols located on top of numbers.
Backspace Erases the character to the left of the cursor.
Delete Deletes the character to the right of the cursor.
Enter Activates a command.
Num Lock Activates or deactivates the numeric keyboard.
Home Moves the cursor to the beginning of the line.
End Moves the cursor to the end of the line.
Insert Lets you insert characters.
Page Up Moves the cursor to the top of the page.
Page Down Moves the cursor to the bottom of the page.
Print screen Prints the screen content.
Some Important Keys
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First, click on Start.
Second, slowly move your mouse
to reach Programs.
Third, slowly move to the right.
Select the program you need.
Opening Programs
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Turning off the computer
First, click on Start.
Click on Turn Off Computer Or Shut
down
Click on Turn Off
The computer will Shut Down
Alphanumeric Keys: These keys are used for entering letters and numbers.
Special Keys: Keys such as Control (CTRL), SHIFT, SPACEBAR, ALT, CAPS LOCK, and TAB are special keys. These special keys perform special functions depending on when and where they are used.
Punctuation Keys: Punctuation keys include keys for punctuation marks, such as colon (:), semicolon (;), question mark (?), single quotation marks (‘ ’), and double quotation marks (“ ”).
Command Keys: Keys such as INSERT (INS), DELETE (DEL), and BACKSPACE are command keys. You use these keys to insert and delete text and objects. You can turn the INSERT key either ON or OFF. When turned ON, the INSERT key helps you overwrite characters to the right of the insertion point. When turned OFF, the INSERT key helps you enter text or characters to the right of the insertion point, without overwriting this text or characters. An insertion point is the blinking vertical line that indicates the location at which the inserted text appears. The DELETE key is used to remove typed text, characters, and other objects on the right side of the insertion point. The BACKSPACE key is used to remove typed text, characters, and other objects on the left side of the insertion point.
