First generation computers used
Answer: C
Correct answer: Vacuum tube processors
The vacuum tube was the switching device of the first generation. Transistors, integrated circuits and microprocessors define the second, third and fourth.
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Which among the following is not a third generation computer?
Answer: B
Correct answer: IBM 1401
The IBM 1401 is a transistor machine of the second generation. The IBM 360, PDP-8 and HP 2115 all use integrated circuits and belong to the third.
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In 1958, Texas Instruments invented _____________.
Answer: A
Correct answer: integrated circuits
Jack Kilby, working at Texas Instruments in 1958, built the first integrated circuit - several components formed on a single piece of semiconductor. The transistor had been invented at Bell Labs a decade earlier, and the microprocessor came from Intel in 1971.
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The processing speed of first generation computers was
Answer: A
Correct answer: milliseconds
First generation machines worked in milliseconds - thousandths of a second. Microseconds came with transistors, nanoseconds with integrated circuits, and picoseconds are faster than any of the five generations achieved.
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Microprocessors as switching devices are for which generation computers
Answer: D
Correct answer: Fourth Generation
The fourth generation is defined by the microprocessor, which put the whole central processing unit on a single chip. The first three generations used vacuum tubes, transistors and integrated circuits respectively.
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Super computer developed by Indian scientists?
Answer: A
Correct answer: Param
PARAM was developed by C-DAC in Pune, the first Indian supercomputer, in 1991. Cray, Blue Gene and Sequoia are American machines.
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Which among the following does not affect the resolution of a video display image?
Answer: D
Correct answer: Screen size
Resolution is the number of distinguishable picture elements, which is set by the bandwidth of the signal, the raster scan rate and the count of horizontal and vertical lines. Making the screen larger spreads the same number of elements over more area - the picture gets bigger and coarser, but its resolution is unchanged.
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Which of the following statements best describes the batch method of input ?
Answer: C
Correct answer: Data is collected in the form of source documents, placed into groups and then input
Batch processing means accumulating transactions and running them together at a later time. Processing data as soon as it arrives is the opposite arrangement, online or real-time processing, and source documents are precisely what batch input relies on.
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Which among the following is an example of fifth generation computer?
Answer: A
Correct answer: PIM/m
The PIM/m was one of the parallel inference machines built for Japan's Fifth Generation Computer Systems project. The ICL 2950 and IBM 1401 are earlier conventional machines.
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Which of the following is first generation of computer ?
Answer: A
Correct answer: EDSAC
EDSAC, built at Cambridge in 1949, used vacuum tubes and belongs to the first generation. The IBM-1401 and CDC-1604 are transistor machines of the second generation, and the ICL-2900 is later still.
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