A pointer is a small symbol that appears on the screen in graphical user interface. Pointing DevicesĪn input device used to control a pointer on the screen is called pointing device. What are pointing devices? List the names of different pointing devices. Pause or Break Key: It is used to pause screen when information is too fast to read.The cursor moves normally when it is turned off. Scroll Lock: It locks and unlocks the cursor on screen in some programs.Print Screen: It is used to take a snap of the computer screen.The function of these keys are same as numeric keys 0, decimal point (del), 7, 1, 9, and 3. Insert, Delete, Home, End, Page up and Page Down keys: These keys are above the arrows key.Arrow Keys: The arrows keys are used to move the cursor position.Some additional keys on extended keyboard are as follows: If NumLock key is off, the numeric keys are used to move the cursor and perform other functions as follows: 1. If NumLock is on, the keys are used to enter numeric data and mathematical symbols like +, -, *, /. The numeric keys are used for two purposes depending on the status of NumLock key. Numeric keys are located on the right side of most keyboards. It is normally used at the end of a paragraph. For example, CTRL+O is used to open a new file.ĪLT key is also used in combination with other keys to execute commands.īackspace key is used to delete single character on the left of the cursor.Įnter key is used to move the cursor to the beginning of the next line. Shift key is pressed in combination with other keys to produce upper case letters and the upper symbols shown on certain keys.Ĭontrol key is pressed in combination with other keys to execute commands. Tab key is used to move the cursor to next tab stop.
The status light under “CapsLock” turns on when it is pressed. The characters appear in lowercase if it is not pressed. The characters appear in uppercase if it is pressed.
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