Keyboard:
This is the most commonly used input device.
The buttons on the keyboard are termed as keys.
The keys maybe alphabetical,numerical and fumction keys.
Most keyboards are in QWERTY format and are called QWERTY
keyborads.
Parts of keyboard:
A QWERTY and a normal keyboard has the following main parts:
1.Function keys
2.Main keyboard
3.Numeric keys
1.Function Keys:
These are used to perform special functions depending upon
the software being used in the computer.
2.Main Keyboard:
This includes the alphabetical keys.
3.Keys with special
functions:
Caps Lock Keys:
When this key is pressed,the characters appear in uppercase.
Shift Keys:
This key when pressed in combination with other keys produce
upper case letters and upper symbols shown on certain keys.
Control Keys:
The control key when pressed with other keys can execute
different commands .For example pressing Ctl with P s used to print a page.
Alt Key
This is used with other keys to execute a command.
Enter Key:
This is used to move the cursor to the next line usually at
the end of a sentence or paragraph.
Escape Key:
This is used to terminate a current task or command.
Numeric Keys:
They are located on the right side of key board.
If the Num lock is on,they canbe used to enter numbers from
0 to 9 and combinations.
With Num lock off,they are used to move cursor on the page
No comments:
Post a Comment