A mouse.
It allows you to move the cursor to select stuff by clicking on them.
For productivity purposes - A keyboard allows users to input text into a computer & a mouse or trackball allows users to control a cursor to manipulate on-screen objects. For entertainment purposes - Joysticks, game pads & other controllers allow users to control characters and/or vehicles inside computer games. The Internet allows users to communicate with each other as well as for research & education purposes.
Its ugly
A touch screen laptop allows someone to move the cursor around the screen without the aid of a mouse. One simply touches the screen to get the results they desire.
the pointer on the computer screen is called "cursor"
A computer's Graphic User Interface (GUI) allows the user to use a mouse to control a cursor, rather than having to type commands in text.
A white-board allows trainers and instructors to operate the computer as if they were using a mouse, moving the cursor around on the computer just by touching a point on the whiteboard
Usually, if NumLock is turned off, the numeric keypad to the right of the keyboard can control the cursor.
cursor
Yes. A GUI can be rather difficult to navigate without a mouse, but it can be done with extensive use of the Tab key and cursor keys.
A pointing and imput divice that allows the user to move a cursor around a screen and select programs with the click of a button. By:Ryan Krauel
When you get your computer your cursor should be normal but if its not its not right. [Ej Chapman wrote this answer.]