Q41. What is data processing?
a) Inputting data into a computer
b) Storing data in a database
c) Converting raw data into useful information
d) Displaying data on a screen
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Correct Answer: c) Converting raw data into useful information
Explanation: Data processing involves converting raw data into useful information through various operations, such as sorting, filtering, calculations, and data analysis.
Q42. Which stage of data processing involves organizing data for analysis?
a) Data Input
b) Data Processing
c) Data Output
d) Data Storage
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Correct Answer: b) Data Processing
Explanation: Data processing is the stage where data is organized, analyzed, and manipulated to produce meaningful information. This stage may involve sorting, filtering, and applying algorithms to the data.
Q43. In the context of data processing, what is meant by “information”?
a) Raw data
b) Processed data that is meaningful and useful
c) Unstructured data
d) Data that is yet to be analyzed
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Correct Answer: b) Processed data that is meaningful and useful
Explanation: Information refers to data that has been processed and organized in a way that makes it meaningful and useful for decision-making, reporting, or other purposes.
Q44. What is the first step in the data processing cycle?
a) Data Output
b) Data Storage
c) Data Input
d) Data Processing
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Correct Answer: c) Data Input
Explanation: The first step in the data processing cycle is data input, where raw data is collected and entered into a computer system for processing.
Q45. What is the purpose of data storage in the data processing cycle?
a) To manipulate data
b) To permanently hold processed information
c) To input data
d) To output data
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Correct Answer: b) To permanently hold processed information
Explanation: Data storage refers to the stage in the data processing cycle where processed information is stored permanently for future retrieval, analysis, or use.
Q46. Which device is primarily used for data storage in computers?
a) Keyboard
b) Monitor
c) Hard Disk Drive (HDD)
d) Printer
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Correct Answer: c) Hard Disk Drive (HDD)
Explanation: A Hard Disk Drive (HDD) is primarily used for data storage in computers. It stores the operating system, software applications, and user data.
Q47. During data processing, what happens in the output stage?
a) Data is processed and analyzed
b) Data is stored in memory
c) Data is displayed or presented to the user
d) Data is entered into the system
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Correct Answer: c) Data is displayed or presented to the user
Explanation: In the output stage of data processing, processed data is displayed or presented to the user in a readable format, such as a report, chart, or visual display.
Q48. What is the role of algorithms in data processing?
a) To input data into a computer
b) To provide a step-by-step method for solving a problem
c) To output data to a monitor
d) To store data in memory
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Correct Answer: b) To provide a step-by-step method for solving a problem
Explanation: Algorithms play a crucial role in data processing by providing a step-by-step method for solving problems, processing data, and generating meaningful results.
Q49. Which of the following best describes the data processing cycle?
a) A single operation
b) A series of steps including input, processing, storage, and output
c) A method of data input
d) A technique for data encryption
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Correct Answer: b) A series of steps including input, processing, storage, and output
Explanation: The data processing cycle consists of a series of steps that include data input, processing, storage, and output. These steps are repeated as needed to transform raw data into useful information.
Q50. What is an example of data output in a data processing system?
a) Entering numbers into a spreadsheet
b) Sorting data alphabetically
c) Displaying a graph on a monitor
d) Saving a file to a hard drive
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Correct Answer: c) Displaying a graph on a monitor
Explanation: Displaying a graph on a monitor is an example of data output. It represents the final stage of the data processing cycle, where processed data is presented to the user in a meaningful format.