NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2020

RRB NTPC · Question 6

In the context of computers, tracker balls is a/an _______ device.

  1. output

  2. input

  3. storage

  4. processing

Show answer & explanation

Answer: (B) input

Explanation

A trackball – a ball rolled to move the pointer – is an input device.