Computer Science Questions & Answers

26.

command line and graphical user interface

translators and assemblers

system software and application software

UNIX and LINUX

Correct answer is A

Operating systems can be categorized into two types based on their user interface: Command Line Interface (CLI) and Graphical User Interface (GUI). CLI requires users to type commands to interact with the system, while GUI uses visual elements like icons, windows, and buttons for interaction

27.

What is the difference between internal and external modem

external modems are PCI or ISA expansion cards while internal modems are traditionally plug into a serial port on the computer

internal modems are PCI or ISA expansion cards while external modems are traditionally plug into a serial port on the computer

external modems are PCI or ISA expansion cards while internal modems are USB modems

they are PCI or ISA expansion cards

View answer & explanation

Correct answer is B

Internal modems are PCI or ISA expansion cards, they tend to be simple to install while external modems are traditionally plug into a serial port on the computer

28.

Who invented the Napier Bones

John Napier

Samuel Napier

Joseph Jacquard

Charles Babbage

View answer & explanation

Correct answer is A

Napier's bones is a manually-operated calculating device created by John Napier of Merchiston for calculation of products and quotients of numbers. The method was based on the ancient mathematical principle known as the Arabic lattice, or gelosia multiplication

29.

When the computer reboots itself without triggering the hardware based reset, it is called ?

cold booting

hard reboot

cold reboot

soft reboot

View answer & explanation

Correct answer is D

soft or warm reboot involves restarting a computer under software control without triggering the hardware based reset

30.

EDVAC was produced using which of these concepts ?

packet routing

stored program

circuit switching

packet switching

View answer & explanation

Correct answer is B

EDVAC (Electronic Discrete Variable Automatic Computer) was produced using the 'stored program' concept. This concept is a design architecture for computers where the instructions to be executed by the computer are stored in the same memory that holds the data. 'Circuit switching', 'packet routing', and 'packet switching' are concepts related to network communication, not computer design

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