form.


NAME: FIAKA IFEANYICHUKWU 
	◦	MATRIC NUMBER: 18/SCI01/034
COURSE CODE: CSC 202
There are two major types of computer keyboards: Basic and Extended.
BASIC KEYBOARD
The Basic keyboard contains at most, 110 keys and is enough to perform all the functions that can be done on a Windows PC. They range from 80-110 keys which include;
• Typing keys
• A numeric keypad
• Function keys
• Control keys
The typing keys include the letters of the alphabet, generally laid out in the same pattern used for typewriters. According to legend, this layout, known as QWERTY for its first six letters, helped keep mechanical typewriters' metal arms from colliding and jamming as people typed. Some people question this story -- whether it's true or not, the QWERTY pattern had long been a standard by the time computer keyboards came around. 
The numeric keypad is a more recent addition to the computer keyboard. As the use of computers in business environments increased, so did the need for speedy data entry. Since a large part of the data was numbers, a set of 17 keys, arranged in the same configuration found on adding machines and calculators, was added to the keyboard.
In 1986, IBM further extended the basic keyboard with the addition of function and control keys. Applications and operating systems can assign specific commands to the function keys. Control keys provide cursor and screen control. Four arrow keys arranged in an inverted T formation between the typing keys and numeric keypad move the cursor on the screen in small increments.
EXTENDED KEYBOARD
The Extended keyboard may have additional keys, and the design varies among the companies manufacturing them. These are usually customized keyboards that are specific to certain operating systems or applications. The best example I can think of, for extended keyboards, is the Windows 8 keyboard designed by Microsoft for use with its first “start screen” operating system. It is also a larger version of a basic computer keyboard that has additional function keys which can be assigned to trigger regular actions such as printing, connecting to the internet and file saving.
Under the extended we have various designs of keyboards;
1. Flexible Keyboard
2. Ergonomic Keyboard
3. Gaming Keyboard
4. Wireless Keyboard
5. Multimedia/Internet Keyboard
6. Membrane Keyboard
7. Mechanical Keyboard
8. Virtual Keyboard
9. Laptop Keyboard
10. Projection Keyboard
The Major Differences between Basic and Extended Keyboards
BASIC KEYBOARD	EXTENDED KEYBOARD
It contains only 110 keys.	It contains the basic keys (110 keys) and more.
It is not customized for other operating systems, it is only functional for the windows operating system.	It is designed and customized to perform on different operating systems
It performs the basic operations of a computer system.	It performs more complicated operations.
It requires little or no training to use.	It requires training to use
It is less expensive	It is expensive
 
	
	

form.


NAME: FIAKA IFEANYICHUKWU 
	◦	MATRIC NUMBER: 18/SCI01/034
COURSE CODE: CSC 202
There are two major types of computer keyboards: Basic and Extended.
BASIC KEYBOARD
The Basic keyboard contains at most, 110 keys and is enough to perform all the functions that can be done on a Windows PC. They range from 80-110 keys which include;
• Typing keys
• A numeric keypad
• Function keys
• Control keys
The typing keys include the letters of the alphabet, generally laid out in the same pattern used for typewriters. According to legend, this layout, known as QWERTY for its first six letters, helped keep mechanical typewriters' metal arms from colliding and jamming as people typed. Some people question this story -- whether it's true or not, the QWERTY pattern had long been a standard by the time computer keyboards came around. 
The numeric keypad is a more recent addition to the computer keyboard. As the use of computers in business environments increased, so did the need for speedy data entry. Since a large part of the data was numbers, a set of 17 keys, arranged in the same configuration found on adding machines and calculators, was added to the keyboard.
In 1986, IBM further extended the basic keyboard with the addition of function and control keys. Applications and operating systems can assign specific commands to the function keys. Control keys provide cursor and screen control. Four arrow keys arranged in an inverted T formation between the typing keys and numeric keypad move the cursor on the screen in small increments.
EXTENDED KEYBOARD
The Extended keyboard may have additional keys, and the design varies among the companies manufacturing them. These are usually customized keyboards that are specific to certain operating systems or applications. The best example I can think of, for extended keyboards, is the Windows 8 keyboard designed by Microsoft for use with its first “start screen” operating system. It is also a larger version of a basic computer keyboard that has additional function keys which can be assigned to trigger regular actions such as printing, connecting to the internet and file saving.
Under the extended we have various designs of keyboards;
1. Flexible Keyboard
2. Ergonomic Keyboard
3. Gaming Keyboard
4. Wireless Keyboard
5. Multimedia/Internet Keyboard
6. Membrane Keyboard
7. Mechanical Keyboard
8. Virtual Keyboard
9. Laptop Keyboard
10. Projection Keyboard
The Major Differences between Basic and Extended Keyboards
BASIC KEYBOARD	EXTENDED KEYBOARD
It contains only 110 keys.	It contains the basic keys (110 keys) and more.
It is not customized for other operating systems, it is only functional for the windows operating system.	It is designed and customized to perform on different operating systems
It performs the basic operations of a computer system.	It performs more complicated operations.
It requires little or no training to use.	It requires training to use
It is less expensive	It is expensive