Garima Srivastava: Nurturing Minds through Tutoring

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Word documents are saved by .doc extension by default.

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One has to hold a Bachelor's degree from any recognised University/College

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Charles Babbage was considered to be the father of computing after his invention and concept of the Analytical Engine in 1837.

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The term ‘solid-state’ essentially means ‘no moving parts’.  Solid-state storage devices are based on electronc circuits with no moving parts (no reels of tape, no spinning discs, no laser beams, etc.)

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1) 1940 – 1956: First Generation – Vacuum Tubes. These early computers used vacuum tubes as circuitry and magnetic drums for memory. ... 2) 1956 – 1963: Second Generation – Transistors 3) 1964 – 1971: Third Generation – Integrated Circuits 4) 1972 – 2010: Fourth Generation – Microprocessors 5) Present and Future: Artificial Intelligence

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Represented by only 2 digits: 0 and 1 where '0' is logical false or Off and '1' is logical True or On.

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 OMR is the process of capturing human-marked data from document forms.

People giving Bank exams would be familiar with the answer sheet they are given to mark answers. Those sheets are OMR sheets. These are read under OMR device.

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Star topology is a network topology where we have a central hub and other terminals are directly connected to it.

The star topology reduces the damage caused by line failure by connecting all of the systems to a central node. When applied to a bus-based network, this central hub rebroadcasts all transmissions received from any peripheral node to all peripheral nodes on the network, sometimes including the originating node. All peripheral nodes may thus communicate with all others by transmitting to, and receiving from, the central node only. The failure of a transmission line linking any peripheral node to the central node will result in the isolation of that peripheral node from all others, but the rest of the systems will be unaffected

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With synchronous transmission, the receiver's clock is synchronised with the transmitter's clock. Data is transmitted in a continuous stream, and the arrival time of each can be predicted by the receiver. This is achieved either by using a separate timing circuit, or by embedding the timing information in the signal itself. The latter can be achieved using bi-phase encoding. An embedded timing signal can be used by the receiver to synchronise with the transmitter using a Digital Phase-Locked Loop (DPLL)

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In an analog transmission system, signals propagate through the medium as continuously varying electromagnetic waves. The medium for an analog transmission may be twisted-pair cable, coaxial cable, optical-fiber cable, the atmosphere, water, or space. A technique called "modulation" is used to combine an input signal (the data) onto a carrier signal. The carrier signal is a specific frequency. When tuning a radio, you select a particular carrier frequency in order to tune in that radio station. There are two primary modulation techniques: amplitude modulation, which varies the amplitude (height) of the carrier signal; frequency modulation, which modulates the frequency of the carrier