WHAT IS KEYBOARD
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A Keyboard is one of the primary input devices used with a computer. Keyboard is basically a board of keys similar of typewriters. Keyboards allow the user to input letters, numbers, and other symbols into a computer that often function as commands.
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A keyboard is a typewriter-style device, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Computer keyboard is an input device that allows a person to enter symbols like letters and numbers into a computer. Writing a letter or calculating numerical data, your keyboard is the main way to enter information into your computer. It is one of the main input device for most computers.
Keys groups based on function:
Typing keys • These keys include the same letter, number, punctuation, and symbol keys found on a traditional typewriter.
Control keys • These keys are used alone or in combination with other keys to perform certain actions. The most frequently used control keys are Ctrl, Alt, the Windows logo key Picture of the Windows logo key, and Esc.
Function keys • The function keys are used to perform specific tasks. They are labeled as F1, F2, F3, and so on, up to F12. The functionality of these keys differs from program to program.
Navigation keys • These keys are used for moving around in documents or webpages and editing text. They include the arrow keys, Home, End, Page Up, Page Down, Delete, and Insert.
Numeric keypad • The numeric keypad is handy for entering numbers quickly. The keys are grouped together in a block like a conventional calculator or adding machine.
Types of Computer Keyboard:
Standard Keyboard • Though standard keyboards have undergone considerable changes in design over the last 20 years, their basic layout remains similar. The average number of keys on a regular keyboard is 105, older versions have 95-103.
Mini Keyboards • are very small, slim and usually do not have the numeric keypad that is present on the right side of other keyboards. Mini keyboard are compatible with desktop/laptop computers.
Wireless Keyboards • These keyboards do not need to be connected to the computer via a wire. Wireless keyboards use three basic types of connections, Bluetooth, Infrared (IR), and Radio Frequency to connect to the computer.
Gaming Keyboards • are similar to normal keyboards except they generally contain extra features such as illuminated keys, multimedia keys, an additional LCD screen, palm rest and other features.
Ergonomic Computer Keyboards • is a computer keyboard designed with ergonomic considerations to minimize muscle strain and a host of related problems. It is specially designed as per the comfort of the hands and wrist of the keyboard user.
Virtual Laser Keyboards • is a recent gadget to the computing world. This device projects the keyboard on to a flat surface, such as a table or desk. This then allows you to type directly onto the table.
Rollup computer keyboards • are extremely good for travelling. Simply roll them up and then unroll them when you needed.
Non-QWERTY Keyboard Layouts: AZERTY, QWERTZ, DVORAK, HCESAR, COLEMAK, MALTRON and JCUKEN.
Connector: Wired keyboards connect via PS/2 cable or USB cable connector.
Keyboard is also known as: computer keyboard or typing board.
