1. Definition of Computer Keyboard.
This is an input device that is used to send data to computer memory.
Sketch of a Keyboard
1.1 Types of Keyboard.
- Standard (Basic) Keyboard.
- Enhanced (Extended) Keyboard.
- Standard Keyboard: This is a keyboard designed during the 1800s for mechanical typewriters with just 10 function keys (F keys) placed at the left side of it.
Enhanced Keyboard:
- This is the current 101 to 102-key keyboard that is included in almost all the personal computers (PCs) of nowadays, which has 12 function keys at the top side of it.
1.2 Segments of the keyboard
- Numeric keys
- Alphabetic keys
- Punctuation keys
- Windows Logo key.
- Function keys
- Special keys
Numeric Keys: Numeric keys are keys with numbers from 0 – 9.
Alphabetic Keys: These are keys that have alphabets on them, ranging from A to Z.
Punctuation Keys: These are keys of the keyboard used for punctuation, examples include comma, full stop, colon, question marks, hyphen, etc.
Windows Logo Key: A key on Microsoft Computer keyboard with its logo displayed on it. Search for this on your keyboard.
Apple Key: This also known as Command key is a modifier key that you can find on an Apple keyboard. It usually has the image of an apple or command logo on it. Search for this on your Apple keyboard.
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Function Keys: These are keys that have F on them which are usually combined with other keys. They are F1 – F12, and are also in the class called Special Keys.
Special Keys: These are keys that perform special functions. They include: Tab, Ctrl, Caps lock, Insert, Prt sc, alt gr, Shift, Home, Num lock, Esc and many others. Special keys differs according to the type of computer involved. In some keyboard layout, especially laptops, the keys that turn the speaker on/off, the one that increases/decreases volume, the key that turns the computer Wifi on/off are also special keys.
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