Question : A parallel port is most often used by a

Option 1: Printer

Option 2: Monitor

Option 3: Mouse

Option 4: External storage device

Question : Which of the following is used as the primary memory of a computer?

Option 1: Optical storage device

Option 2: Magnetic storage device

Option 3: RAM

Option 4: Magnetic-Optical storage device

Question : Which of the following devices is used in digital circuits so that information stored in large computer memories is not lost during a momentary electric power failure?

Option 1: Thermistor

Option 2: Diode

Option 3: Transmitter

Option 4: Capacitor

Question : Convex mirrors are used as rear-view mirrors in motorcycles because:

Option 1: It forms a virtual image

Option 2: It forms an erect (upright) image

Option 3: It forms a smaller image as compared with the object

Option 4: All of the above

Question : The device in a communication satellite which receives signals from an earth station and transmits them in different directions is______.

Option 1: transformer

Option 2: transistor

Option 3: transponder

Option 4: transducer