Computer fundamental MCQ Questions and answers- Technical Aptitude

Micro computer : A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit. It includes a microprocessor, memory, and minimal input/output circuitry mounted on a single printed circuit board.

Dialup : Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.

5 bit code is used by Murray code for TELEPRINTER machines.

In programming, it is a name assigned to a machine function. For example, COM1 is the mnemonic assigned to serial port #1 on a PC. Programming languages are almost entirely mnemonics. For example, in x86 assembly language, CMP is used to represent the "compare" instruction and JE for "jump if equal."

Two's complement of a binary number is obtained by adding one to the one's complement of a binary number i.e. 1's complement + 1. One's complement of a binary number is obtained by reversing the digits of the binary number i.e. transforming 1 with 0 and 0 with 1.

The PL/M programming language is a high-level language conceived and developed by Gary Kildall in 1973 for Hank Smith at Intel for its microprocessors. The language incorporated ideas from PL/I, ALGOL and XPL, and had an integrated macro processor.

A datum that indicates some important state in the content of input or output is sentinel . The main concern of the Sentinel System is evaluating whether patients are having an unexpected adverse event from a medical product.

Army is non standard version of a computing language because it is first language to be used for encoding & decoding purposes.

Abacus : An abacus is a manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame. The abacus itself doesn't calculate; it's simply a device for helping a human being to calculate by remembering what has been counted.

Rotational delay : A rotational delay is the amount of time between information requests and how long it takes the hard drive to move to the sector where the requested data is located. In other words, it is a time measurement, in milliseconds (ms), of how long before a rotating drive can transfer data.