Computer Awareness Mixed Quiz: Set 29

Mosaic was written at the National Center for Supercomputing Applications in the United States by a team that included Marc Andreessen, and it was the first browser to show pictures inside the page alongside the text instead of in a separate window, which is why it is credited with carrying…

The TIFR Automatic Calculator was completed at the Tata Institute of Fundamental Research in Mumbai in 1960 and is counted as the first digital computer designed and built in India; Jawaharlal Nehru gave it the name TIFRAC.

The fibre has a core of higher refractive index surrounded by a cladding of lower refractive index. Light that enters the core and meets the boundary at an angle greater than the critical angle is reflected entirely back into the core, with none of it refracted away into the cladding.

In Boolean algebra a literal is any single appearance of a variable in an expression, whether it appears plain or with a bar over it.

C-DAC was established at Pune in 1988 under the Department of Electronics, with a mission to design and build an indigenous supercomputer after the United States declined to supply a Cray machine to India.

In multimedia, graphics is the broad word for every kind of visual element a computer can store and show, so drawings, photographs, movies and simulations all sit inside it.

When an incognito window is closed, the browser throws away the list of pages visited in it, the cookies the sites placed and whatever was typed into forms, so that the next person at the same computer finds no trace.

It was the first electronic computer built to be sold to customers rather than used only in a laboratory, and it was famously put to work on census and business data processing.

Electromagnetic interference acts on moving charge, so any medium that carries a signal as an electric current can pick up noise from motors, fluorescent lamps, lightning and nearby cables.

A touchscreen accepts a finger tap or a stylus stroke as input and displays the result on the very same surface, so the one piece of hardware performs both jobs.

The HEC-2M, brought from Britain, was installed at the Indian Statistical Institute in 1955 and is counted as the first computer to work in India; the institute later added a Soviet URAL machine and in 1966 built the ISIJU with Jadavpur University.

An electronic spreadsheet stores data in a grid of rows and columns and recalculates its formulas whenever a value changes, and Excel is the spreadsheet program of the Microsoft Office suite.

A walkie-talkie allows both parties to speak and both to listen, so communication is two-way, but the set has a single push-to-talk switch and one person must release it before the other can be heard.

ENIAC, the Electronic Numerical Integrator and Computer, was completed in 1946 at the University of Pennsylvania by J. Presper Eckert and John Mauchly and used some eighteen thousand vacuum tubes; it was a first generation machine, filled a large room and consumed a great deal of power.

ECIL was set up at Hyderabad in 1967 under the Department of Atomic Energy to make electronic equipment for the atomic energy programme, and it produced the TDC series, the Trombay Digital Computers, for laboratory and industrial use.

WORM describes a storage medium on which data can be written a single time and after that only read, never altered or erased.

The RJ-45 is the eight-position modular plug crimped on to the end of an unshielded twisted pair cable of category 5e or 6 and pushed into the network port of a computer, switch or router.

The Education and Research Network, ERNET, was begun in 1986 by the Department of Electronics with support from the United Nations Development Programme to link universities, the Indian Institutes of Technology and research laboratories, and it carried the first academic internet traffic in India.

A computer works with digital signals, a series of ones and zeros, while an ordinary telephone line was built to carry an analog voice signal.

PARAM Shivay, commissioned in 2019 at the Indian Institute of Technology at Banaras Hindu University in Varanasi, was the first supercomputer installed under the National Supercomputing Mission, which was approved in 2015.