Computer Basics: Output and Input Devices

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Questions and Answers

What is the primary function of output devices in a computer system?

  • To process data and perform calculations
  • To input data and instructions
  • To store data and programs
  • To display or present the results of processed data (correct)

What is the key difference between data and information?

  • Data is raw, while information is processed and meaningful (correct)
  • Data is used for calculations, while information is used for display
  • Data is processed, while information is raw
  • Data is stored, while information is transmitted

What is the primary function of a transistor in a digital circuit?

  • To represent binary values as electronic switches (correct)
  • To perform calculations
  • To store binary values
  • To display output

What does the 'off' state of a transistor represent in a digital circuit?

<p>A binary value of 0 (C)</p> Signup and view all the answers

What is an example of data, according to the text?

<p>A sequence of numbers without context (D)</p> Signup and view all the answers

What is the result of processing data in a computing system?

<p>The data becomes more meaningful and is considered information (B)</p> Signup and view all the answers

What is the equivalent of 1 GB in MB?

<p>1,024 MB (C)</p> Signup and view all the answers

What is the fundamental number system used by computers?

<p>Binary (base-2) (C)</p> Signup and view all the answers

Why is the hexadecimal system widely used in computing?

<p>It is more concise and easier to convert to and from binary (B)</p> Signup and view all the answers

What is represented by the letter 'A' in the hexadecimal system?

<p>10 (C)</p> Signup and view all the answers

What is the difference between a '500GB' hard drive and a 500GiB hard drive?

<p>The number of bytes of storage provided (A)</p> Signup and view all the answers

What is the base of the decimal system used in human-computer interfaces?

<p>10 (D)</p> Signup and view all the answers

What is the primary function of encoding systems in computers?

<p>To provide a standardized way to map characters to numbers (A)</p> Signup and view all the answers

What is the main difference between ASCII and Unicode encoding standards?

<p>ASCII can represent 128 characters, while Unicode can represent a wider range of characters (A)</p> Signup and view all the answers

What is the range of values for each color component in the RGB model in decimal notation?

<p>0 to 255 (B)</p> Signup and view all the answers

What type of computers are used for complex, high-end computations?

<p>Supercomputers (B)</p> Signup and view all the answers

What is the purpose of mainframe computers?

<p>To handle large amounts of data and support multiple users (A)</p> Signup and view all the answers

What is the prefix symbol used in hexadecimal representation of RGB colors?

<h1>(B)</h1> Signup and view all the answers

How many characters can ASCII encoding standard represent?

<p>128 (D)</p> Signup and view all the answers

What is the purpose of encoding tables in computers?

<p>To represent and manipulate textual information (B)</p> Signup and view all the answers

How many hexadecimal digits are used to represent each color component in the RGB model?

<p>2 (C)</p> Signup and view all the answers

What is the characteristic of UTF-16 encoding?

<p>It uses either one or two 16-bit code units per character (C)</p> Signup and view all the answers

What is the hexadecimal representation of the color white in the RGB model?

<p>#FFFFFF (C)</p> Signup and view all the answers

What is the process of converting RGB colors to hexadecimal notation?

<p>Converting each component to a 2-digit hexadecimal number and then concatenating (C)</p> Signup and view all the answers

What is the primary purpose of a server in a network?

<p>To serve data to other computers on the network (D)</p> Signup and view all the answers

Which type of computer is designed for tasks requiring better graphics or computational power?

<p>Workstations (A)</p> Signup and view all the answers

What is the main difference between a laptop and a netbook?

<p>Size and portability (A)</p> Signup and view all the answers

Which of the following is an example of a transaction processing system?

<p>Airline reservations (C)</p> Signup and view all the answers

What is the primary purpose of a desktop computer?

<p>To serve as a general-purpose computer for individual users (B)</p> Signup and view all the answers

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