HPSSC JOA - IT (939) Exam Preparation mcq questions for practice.            Q-1) Out of following, whom do you think is the most probable user of Light Pen? i) Computer Programmer ii) Graphic Designer iii) Journalist iv) computer Scientist       Ans. Graphic Designer       Q-2) Name the type of mouse which uses laser technology to detect the motion of the ball. i) Optical Mouse ii) Mechanical Mouse iii) Opto Mechanical Mouse iv) All of these          Ans. Optical Mouse       Q-3) Which is a vector based graphical printing device? i) Printers ii) Plotters iii) Scanners iv) Light Pen       Ans. Plotters       Q-4) Which type of plotter is used to produce continuous output such as plotting earthquake activity? i) Drum Plotter ii) Flatbed plotter iii) Disk platters iv) None of these       Ans. Drum Plotters     Q-5) The diameter ...