Computer fundamental MCQ Questions and answers- Technical Aptitude

An electrical inter-connection that permits 8 or more bits of data to be moved in the same instant of time is called Parallel interface.

Primary storage, also known as main storage or memory, is the area in a computer in which data is stored for quick access by the computer's processor. The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

Conversion of an octal number (73)₈ to binary number is (111011)₂
(73)₈ = (111011)₂
Because 7 = 111 and 3 = 011
= (111011)₂

Software that's loaded into a computer primary storage area is known as Memory-resident package. BIOS, in full Basic Input/output System, computer program that is typically stored in EPROM and used by the CPU to perform start-up procedures when the computer is turned on. Its two major procedures are determining what peripheral devices (keyboard, mouse, disk drives, printers, video cards, etc.)

1) Logic gates are the building blocks of all the circuits in a computer.
2) Logic Gates are the basic building blocks of digital circuits. The computer/Smartphone you are using now is made-up on these logic gates.
3) Of the two the NAND gate is the most widely see.

The Baudot code or International Teleprinter Code was invented by Emile Baudot in 1870. It is binary code which uses crosses and dots. It was used for teleprinter messages instead of the Morse code and allowed to encode 2⁵ = 32 characters efficiently. Baudot is a five-bit binary code. Originally used in wireless telegraphy as a replacement for Morse code.

The OR gate gets its name from the fact that it behaves after the fashion of the logical inclusive "or". The output is "true" if either or both of the inputs are "true." If both inputs are "false," then the output is "false". In other words, for the output to be 1, at least input one OR two must be 1. The XOR (exclusive-OR) gate acts in the same way as the logical "either/or". The output is "true" if either, but not both, of the inputs are "true". The output is "false" if both inputs are "false" or if both inputs are "true". Another way of looking at this circuit is to observe that the output is 1 if the inputs are different, but 0 if the inputs are the same.

A circuit which can store information is known as Memory cell. But memory is a key element of digital systems. In computers, it allows to store both programs and data and memory cells are also used for temporary storage of the output of combinational circuits to be used later by digital systems.

The computer age in India began in 1955 with the installation of HEC-2M (a computer designed by A.D.Booth in England) at the Indian Statistical Institute (ISI) at Calcutta (now Kolkata)

Logo is a simple computer programming language which can be used to control devices. For example, a small robot known as a turtle can be moved around the floor using logo. Logo is often used with a screen turtle, which is an object on the screen used to simulate how a turtle moves around the floor.