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[4 Mark Questions]

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4 questions · timed · auto-graded

Question 14 Marks
What are the different generations of computers?
Answer
  • The main difference between the generations is the speed and efficiency of the computer.
  • On the basis of performance and speed, the generations of the computer were categorised.

Generations of Computer:

PeriodGenerationDigital devices
1940-1956I GenerationVacuum tubes
1956-1963II GenerationTransistor
1964-1971III GenerationIntegrated circuits
1972-2010IV GenerationMicroprocessors
After 2010V GenerationArtificial Intelligence
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Question 24 Marks
Explain in detail about data and data processing.
Answer
Data:
  • Data is the set of values of qualitative and quantitative variables.
  • The data that is fed to the computer can be text, numbers or statistics.
  • These data stored in computer memory cannot be used directly.
  • It has to be processed.
Data Processing:
The data processing in a computer is collecting data and converting it into information according to our needs and requirements.Steps in data processing:
Data processing has six steps. They are:
  • Data collection
  • Data storage
  • Data sorting
  • Data processing
  • Data analysis
  • Data presentation and conclusions
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Question 34 Marks
Write the history of computers.
Answer
  • Around 2000 years ago, the people of China used Abacus. This was considered as the most basic model of a computer.
  • Nineteenth-century was considered as the birth of the computer when Charles Babbage designed the basic construction of a computer.
  • ENIAC, which was used by the American Military in 1946 to predict the trajectory of artillery shells was recognized as the world’s first general-purpose computer.
  • Lady Augusta Ada Lovelace was honored as the first programmer as she gave the first programming to do arithmetic operations.
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Question 44 Marks
Explain the history of computers.
Answer
  • Around 2000 years ago, the people of China used Abacus.
  • This was considered as the most basic model of a computer.
  • Nineteenth century was considered as the birth of the computer when Charles Babbage designed the basic construction of a computer.
  • ENLAC, which was used by the American Military in 1946 to predict the trajectory of artillery shells, recognized as the world’s first general-purpose computer.
  • ENIAC had approximately 18,000 vacuum tubes.
  • The size occupied by the ENIAC could be equivalent to a classroom.
  • Lady Augusta Ada Lovelace was honored as the first programmer as she gave the first programming to do arithmetic operations.
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[4 Mark Questions] - Science STD 9 Questions - Vidyadip