The ..... program compresses large files into a smaller file
Answer: A
WinZip compresses large files into a smaller archive.
It uses lossless algorithms, so the original is recovered exactly on extraction. Compression works by encoding repeated patterns compactly, which is why text compresses well and an already-compressed JPEG hardly at all.
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Which device can be used to store charge?
Answer: C
A capacitor stores charge.
Two conducting plates are separated by an insulator; applying a voltage moves charge onto one plate and off the other, and the charge stays when the source is removed. Capacitors smooth power supplies, tune radios and couple amplifier stages.
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What is full form of IP -
Answer: B
IP stands for Internet Protocol.
It addresses and routes packets between networks. It is connectionless and makes no guarantee of delivery; TCP above it provides the reliability.
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What does the abbreviation LASER stand for ?
Answer: C
Correct answer: Light Amplification by Stimulated Emission of Radiation
The name describes the mechanism: an excited atom stimulated by a passing photon emits a second photon identical in phase and direction. That coherence is what distinguishes laser light from ordinary light.
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Which material is chiefly used to make semiconductor devices ?
Answer: D
Correct answer: Silicon
Silicon is the dominant semiconductor because it is abundant, forms a stable insulating oxide and can be purified to an extreme degree. Germanium was used in the earliest transistors, and gallium arsenide serves specialised high-frequency roles.
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What is meaning of OMR ?
Answer: A
OMR stands for optical mark reader.
It detects pencil marks in defined positions on a form by reflected light, and is what reads multiple-choice answer sheets at examinations, at enormous speed and without transcription errors.
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According to CNN, how much did Internet traffic increase between 1994 and 1996?
Answer: D
Internet traffic increased about twenty-five times between 1994 and 1996.
Those were the years the web went from a research curiosity to a mass medium: Netscape Navigator appeared in 1994 and the number of websites rose from about 3,000 to over 250,000.
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ISP stands for...
Answer: D
ISP stands for internet service provider.
It is the company that connects a subscriber to the internet, and usually supplies an IP address, a mail service and a domain name service as well.
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Once the active medium is excited, the first photons of light are produced by which physical process?
Answer: B
The first photons in a laser are produced by spontaneous emission.
An excited atom drops to a lower level of its own accord and emits a photon in a random direction. A few of those photons happen to travel along the axis, and they set off the stimulated emission that builds the beam.
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What is the Websites code for the country Bulgaria?
Answer: D
The country code for Bulgaria is .bg.
Country codes are two letters and follow the ISO 3166-1 standard, which is why they do not always match the country's name in English.
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