868. General purpose computers are those that can be adopted to countless uses simply by changing its
A. Output Device
B. Input Device
C. Program
D. Processor
✅ The correct answer is option C.
865. Which printer uses a combination of laser-beam & electro photographic techniques.
A. Laser printers
B. Dot-Matrix
C. Line printer
D. Daisy wheel
✅ The correct answer is option A.
869. Which of the following memories contains a thin film of magnetic material sandwitched between two permanent bias magnets?
A. ROM
B. Magnetic disk
C. Core memory
D. Bubble memory
✅ The correct answer is option C.
872. ENIAC (Electronic Numerical Integrator and Calculator) had huge advantage over Mark I because it used electronic valves in place of the electromagnetic switches. In the beginning, ENIAC was used for calculating the path of artillery shells. For which other was weapon design was it utilized?
A. hydrogen bomb
B. atom bomb
C. agnimissile
D. fighter aircraft
✅ The correct answer is option A.
875. The silicon chips used for data processing are called
A. RAM chips
B. ROM chips
C. Micro processor
D. PROM chips
✅ The correct answer is option C.
878. In simplex transmission
A. Data format is simple
B. Data transmission is one way
C. Data can be transmitted to small distances only
D. All of the above
✅ The correct answer is option B.
881. A random-access data storage device which gives rapid access to data is
A. Magnetic tape
B. Punched card
C. Disk storage unit
D. Buffer
✅ The correct answer is option C.
884. Which of the following is responsible for the management and coordination of activities and the sharing of the resources of the computer?
A. Application Software
B. Motherboard
C. Operating System
D. RAM
✅ The correct answer is option C.
887. To move to the beginning of a line of text, press the _____ key.
A. Home
B. A
C. PageUp
D. Enter
✅ The correct answer is option A.
889. Which of the following is not an output device of a computer?
A. Printer
B. keyboard
C. VDU
D. CRT screen
✅ The correct answer is option B.