Thursday, July 10, 2014

SSC Quiz on Computer Awareness

Computer Knowledge Quiz

Computer Knowledge Quiz

Computer Knowledge Quiz

Computer Knowledge Quiz

  • 4. Which of the following circuit is used as "Memory Device" in Computers? 

    1. Rectifier
    2. Flip-Flop
    3. Comparator
    4. Attenuator
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note: A flip-flop is a circuit that has two stable states and can be used to store state information. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs. It is the basic storage element in sequential logic. Flip- Flops and latches are a fundamental building block of digital electonics system used in computers, communications and many other types of systems.

Computer Knowledge Quiz

  • 5. Who developed the concept of E-Mail?

    1. Bill Gates
    2. Arthur C Clarke
    3. Ray Tomlinson
    4. Sabir Bhatia
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note: Ray Tomlinson is credited with developing the first viable e-mail program in 1971 for use on the ARPANET. Although text message were occasionally sent over the network, Tomilnson created the first program. It is a method of exchanging digital messages from an author to one or more recipients.Modern email operates across the internet or other computer networks. Some early email systems required that the author and the recipient both be online at the same time, in common with instant messaging. Today's email systems are based on store and forward model.

Computer Knowledge Quiz

  • 6. What is an organization's introductory web page called?

    1. Portal
    2. Vortal
    3. Homepage
    4. Web Site
    Answer And Explanation
    Answer: Option D
    Explanation:
    Note: The introductory web page of an organisation is called website. A website( also called an Internet site) is a group of HTML files connected by hypertext links and stored on a web server i.e a computer that hosts webpages and is permanently connected to the internet.

Computer Knowledge Quiz

Computer Knowledge Quiz

  • 8. Who among the following developed World Wide Web(WWW) which gave a new type of information exhibition?

    1. Bob Cohen
    2. Tim Berners-Lee
    3. Robert Morris Jr
    4. Michel Derstuses
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note: The World Wide Web is a system of interlinked hypertext documents accessed via the Internet. Using concept from his earlier hypertext like ENQUIRE, British engineer, computer scientist and at that time employee of CERN, Sir Tim Berners-Lee , now director of the World Wide Web Consortium(W3C), wrote a proposal in March 1989 for what would eventually become the World Wide Web.

Computer Knowledge Quiz

  • 9. Processing of a data file to reduce its size for storage on disk is termed:

    1. Amplification
    2. Reduction
    3. Compression
    4. Rarefaction
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note: The process of reducing the size of a data file is popularly referred to as data compression, although its formal name is source coding. Compression is useful because it helps reduce resources usage, such as data storage space or transmission capacity. Because compressed data must be decompressed to use, this extra processing imposes computational or other costs through decompression.

Computer Knowledge Quiz

  • 10. "IC" in computers stands for 

    1. Integrated Charge
    2. Integrated Circuits
    3. Integrated Current
    4. Internal Circutits
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note: IC or an Integrated Circuit is small wafer, usually made of silicon, that can hold anywhere from hundreds to millions of transistors, resistors and capacitors. These extremely small electronics can perform calculations and store data using either digital or analog technology.

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