Computer Fundamental Miscellaneous - Study Mode

[#1031] Super-computers
Correct Answer

(D) Are not fast enough for some applications

Explanation

Solution: Supercomputing technology comprises supercomputers, the fastest computers in the world. Supercomputers are made up of interconnects, I/O systems, memory and processor cores. Unlike traditional computers, supercomputers use more than one central processing unit (CPU).

[#1032] A special type of device which uses an ordinary telephone with a computer is
Correct Answer

(C) Acoustic couple

Explanation

Solution: A special type of device which uses an ordinary telephone with a computer is Acoustic couple. A device that converts digital signals to audio signals in order to allow the transmission of data (as from a computer) over a telephone lines an acoustic coupler.

[#1033] The first electronic general purpose digital computer built by Mauchly and Eckert called ENIAC did not work on the stored program principle. How many numbers could it store in its internal memory?
Correct Answer

(B) 20

Explanation

Solution: ENIAC, in full Electronic Numerical Integrator and Computer, the first programmable general-purpose electronic digital computer, built during World War II by the United States. American physicist John Mauchly, American engineer J. 20 numbers could it store in its internal memory.

[#1034] A hand-held device for optically reading bar codes on goods, labels & shelves is
Correct Answer

(A) Wand

Explanation

Solution: A hand-held device for optically reading bar codes on goods, labels & shelves is wand. A wand is a term used to describe a hardware device the size of a large writing pen (stylus). It is used to scan an object, such as a barcode, into a computer or other electronic devices. A wand is a tool similar to a writing pen that is used to draw on a graphics tablet.

[#1035] In analog computer
Correct Answer

(B) Input is never converted to digital form

Explanation

Solution: Analog computer system is the very old computer system which operates on the mathematical variables in the form of continuously changeable physical quantities/entities like mechanical, electrical, hydraulic, etc. They use continuous values rather than discrete values so they work on analog signal.