Identify the true/false from the following statements.
a) Light pen is an electrooptical pointing device used to select objects on a display screen with the help of a light sensitive pen.
b) Trackball works like a mouse.
C) The keyboard consists of a set of central-keys to control the movement of the cursor and the screen.
1
a - true, b - true, c - true
2
a - false, b - true, c - true
3
a - true, b - false, c - true
4
a - true, b - true, c - false