541. Which of the following is a secondary memory device?
A. Keyboard
B. Disk
C. ALU
D. All of the above

542. One of the popular mass storage device is CD ROM. What does CD ROM stand for?
A. Compactable Read Only Memory
B. Compact Data Read Only Memory
C. Compactable Disk Read Only Memory
D. Compact Disk Read Only Memory

543. Identify the true statement about computer.
A. Computers are 100% accurate but it can suffer from GIGO (Garbage In Garbage Out)
B. Computers are reliable because they use electronic component which have very low failure rate
C. Computer is never tired and does not suffer from boredom
D. All of above

544. The programs which are as permanent as hardware and stored in ROM is known as___________?
A. Hardware
B. Software
C. Firmware
D. ROM ware

545. Which of the following memories must be refreshed many times per second?
A. Static RAM
B. Dynamic RAM
C. EPROM
D. ROM

546. What do you call the translator which takes assembly language program as input & produce machine language code as output?
A. Compiler
B. Interpreter
C. Debugger
D. Assembler

547. Serial access memories are useful in applications where:
A. Data consists of numbers
B. Short access time is required
C. Each stored word is processed differently
D. Data naturally needs to flow in and out in serial form

548. In_______________mode, the communication channel is used in both directions at the same time?
A. Full-duplex
B. Simplex
C. Half-duplex
D. None of the above

549. Who invented Slide Rules?
A. John Napier
B. William Oughtred
C. Gottfried Leibnitz
D. Blaise Pascal

550. The proper definition of a modern digital computer is____________?
A. An electronic automated machine that can solve problems involving words and numbers
B. A more sophistic and modified electronic pocket calculator
C. Any machine that can perform mathematical operations
D. A machine that works on binary code

NOTE
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