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Computer Knowledge

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Submitted By raju0
Words 9709
Pages 39
Q. where are programs and data to be used by the computer available? 1 2 3 4 Output Processing unit Input Storage Ans: 4 Q. A parallel port is most often used by a 1 2 3 4 Mouse Monitor Printer External storage device Ans: 3 Q. Computer follows a simple principle called GIGO which means: 1 2 3 4 Garbage in garbage out Garbage input good output Good input good output Greater instructions greater output Ans: 1 Q. Arrange the following devices in ascending order of the speed: A. RAM B. Hard disk C. Cache D. Floppy 1 2 3 4 ABDC BDAC DBAC BADC Ans: 3 Q. What is the commonly used unit for measuring the sped of data transmission? 1 2 3 4 Bits per second Nano seconds Characters per second Mega Hertz Ans: 1 Q. Which one among the following is not included in the basic functions of operating system? 1 2 3 4 Job Control Job Scheduling Memory Management Data Management Ans: 1 Q. 'Blue tooth' technology allows 1 Landline phone to mobile phone communication 2 Signal transmission on mobile phones only 3 Wireless communication between equipments 4 Satellite television communication Ans: 3

Q. Which of the following statements about the Crime and Criminal Tracking Network System (CCTNS) is/are correct? 1. It will facilitate real time access of classified criminal data to the law enforcement authorities. 2. National Crime Record Bureau is the nodal agency mandated to implement the network in all the states. Select the correct answer using the code given below1 2 3 4 1 only 2 only Both 1 and 2 Neither 1 nor 2 Ans: 1 Q. One byte consists of 1 2 3 4 four bits one bit ten bit eight bits Ans: 4 Q. ENIAC was 1 an electronic computer 2 an engine 3 a memory device 4 an electronic calculator Ans: 1 Q. The operating system called UNIX is typically used for 1 2 3 4 Desktop computers Laptop computers Supercomputers All of these Ans: 4 Q. There are several primary categories of procedures.

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