A computer is an electronic device that manipulates
information or data. It has the ability to store, retrieve and process data. A
computer is a device that accepts information (in the form of digitalized data)
and manipulates it for some result based on a program or sequence of
instruction on how the data is to be processed.
information or data. It has the ability to store, retrieve and process data. A
computer is a device that accepts information (in the form of digitalized data)
and manipulates it for some result based on a program or sequence of
instruction on how the data is to be processed.
A keyboard is the set of typewriter like keys that
enables you to enter data into a computer or other devices. A keyboard is also
an external input device used to type data into some sort of computer system
whether it is mobile device, a personal computer or another electronic machine.
A keyboard usually includes alphabetic, numerical and common symbols use in
everyday transcription. Keyboards for personal computer are connected to the
machine through serial or USB plugs. A computer keyboard is a typewriter-style
device which uses an arrangement of buttons or keys to act as a mechanical lever
or electronic switch.
enables you to enter data into a computer or other devices. A keyboard is also
an external input device used to type data into some sort of computer system
whether it is mobile device, a personal computer or another electronic machine.
A keyboard usually includes alphabetic, numerical and common symbols use in
everyday transcription. Keyboards for personal computer are connected to the
machine through serial or USB plugs. A computer keyboard is a typewriter-style
device which uses an arrangement of buttons or keys to act as a mechanical lever
or electronic switch.
A computer keyboard is an input device that allows
a person to enter symbols like letters and numbers into a computer. There are
110 keys in the computer keyboard. A computer keyboard is also an input device
and also the common interface between the computer user and the central
processing unit (CPU). The keyboard has five parts or division:
a person to enter symbols like letters and numbers into a computer. There are
110 keys in the computer keyboard. A computer keyboard is also an input device
and also the common interface between the computer user and the central
processing unit (CPU). The keyboard has five parts or division:
1.
Functional
key
Functional
key
2.
Special
key
Special
key
3.
Cursor
key
Cursor
key
4.
Numeric
key
Numeric
key
5.
Alphanumeric
key
Alphanumeric
key
Types
of computer keyboard
of computer keyboard
1.
Standard keyboard:
it has 84 keys, they functions keys are f1 to f12
Standard keyboard:
it has 84 keys, they functions keys are f1 to f12
2.
Enhanced
keyboard: This is an improvement of standard keyboard. It was introduce in
1987. It has 101 keys and the function keys are f1 to f2. It also has micro
keys.
Enhanced
keyboard: This is an improvement of standard keyboard. It was introduce in
1987. It has 101 keys and the function keys are f1 to f2. It also has micro
keys.
3.
Ergonomics
keyboard: refers to the study of method that reduces stress on muscles to avoid
repetitive strain injury.
Ergonomics
keyboard: refers to the study of method that reduces stress on muscles to avoid
repetitive strain injury.
4.
Wireless
keyboard: As the name implies, these keyboard do not need to be connected to
the computer via a wire. Wireless computer uses three basic types of connection
such as Bluetooth, infrared (IR) and radio frequency to connect to the computer.
Wireless
keyboard: As the name implies, these keyboard do not need to be connected to
the computer via a wire. Wireless computer uses three basic types of connection
such as Bluetooth, infrared (IR) and radio frequency to connect to the computer.
5.
Compact
keyboard: Are slim and usually do not have the numeric keypad that is present
on the right hand side of other keyboards.
Compact
keyboard: Are slim and usually do not have the numeric keypad that is present
on the right hand side of other keyboards.
Functions of computer keyboard
1.
Computer
keyboard allows an operator to give command to the computer in a simple way by
pressing the keys.
Computer
keyboard allows an operator to give command to the computer in a simple way by
pressing the keys.
2.
It run
from F1 to F12 and accomplish specific purpose depending on the current
operating system and the program running on the computer.
It run
from F1 to F12 and accomplish specific purpose depending on the current
operating system and the program running on the computer.
Keys on the computer keyboard
1.
Alt key
(2) arrow key (3) backspace key (4) caps locks key
Alt key
(2) arrow key (3) backspace key (4) caps locks key
(5) Character set (6) command key (7) control key
(ctrl) (8) delete key
(ctrl) (8) delete key
(9) Enter key (10) function key (11) numeric key
(13) shift key
(13) shift key
(14) Space key
