Keyboard• functions such as plus,divide, times, and subtract.Arrow keys•

Keyboard• One of the primary input devices used with a computer.

• The keyboard looks very similar to thevkeyboards of  electric typewriters, with some additional keys. • Keyboards allow a computer user to input letters,numbers, and other symbols into a computer• Uses an arrangement of buttons or keys.• Requires pressing and holding several keys simultaneously or in sequence.>>Types of Keyboard• Standard#Desktop computer keyboards, such as the 101-key US traditional keyboards or the 104-key Windows keyboards, include alphabetic characters,punctuation symbols, numbers and a variety of function keys.• Laptop#A typical laptop has the same keyboard type as a normal keyboard, except for the fact that most laptop keyboards condense the symbols into fewer buttons to accommodate less space.

• Gaming and Multimedia#The gaming keyboards are designed for the convenience of the gamers and these types of keyboards provide the required controls on the keyboards like back lighting.• Thumb-si ed#Smaller external keyboards have been introduced for devices without a built-in keyboard, such as PDAs,and smartphones. • Virtual#The virtual keyboards are not actually physical keyboards, but they are simulated using a software.• Foldable#Foldable keyboards are extremely good for travelling.

#Simply roll them up and then unroll them when you need them again. >>Keyboard Layouts• QWERTY• QWERT • A ERTY• DVORAK>>Key Types>Function keys• The Function keys are used in programs as shortcut keys to perform tasks. • For example, the F8 key is the key to open the help for programs.>Control Keys• The Control keys give you additional control of a docs.>Keypad-aa• Although not available on all computer keyboards,especially laptops; the keypad gives the user a quick access to numbers and math functions such as plus,divide, times, and subtract.Arrow keys• The arrow keys are four directional arrow keys that allow the user to move their cursor and position on a page.