Computer fundamental MCQ Questions and answers- Technical Aptitude

Pulse-code modulation is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications.

Optical mark recognition (also called optical mark reading and OMR) is the process of capturing human-marked data from document forms such as surveys and tests. They are used to read questionnaires, multiple choice examination paper in the form of lines or shaded areas.

The major advantages of integrated circuits over those made by interconnecting discrete components are as follows : Extremely small size – Thousands times smaller than discrete circuits. It is because of fabrication of various circuit elements in a single chip of semiconductor material.

COBOL : COBOL is a compiled English-like computer programming language designed for business use. It is imperative, procedural and, since 2002, object-oriented. COBOL is primarily used in business, finance, and administrative systems for companies and governments.

Dr. Seymour Aubrey Papert : Seymour Aubrey Papert was a South African-born American mathematician, computer scientist, and educator, who spent most of his career teaching and researching at MIT. He was one of the pioneers of artificial intelligence, and of the constructionist movement in education.

logo programming language : Logo is an educational programming language, designed in 1967 by Wally Feurzeig, Seymour Papert and Cynthia Solomon. "Logo" is not an acronym: the name was coined by Feurzeig while he was at Bolt, Beranek and Newman, and derives from the Greek logos, meaning word or "thought".

Encoder : An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed or compression.

Badge Reader : A Dictionary of Computing. badge reader A device designed to read information encoded into a small plastic card. It is often part of a data collection system in which each operator can be identified by the badge they present to the machine.

Modem : Modem is short for "Modulator / Demodulator." It is a hardware component that allows a computer or other device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to a digital signal that a computer can recognize. Similarly, it converts outgoing digital data from a computer or other device to an analog signal.

A group of magnetic tapes, videos or terminals usually under the control of one master is Cluster.

Modulator : In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted. ... A modem (from modulator–demodulator) can perform both operations.