Computer Aptitude
INPUT SYSTEM MCQs
Total Questions : 85
| Page 2 of 9 pages
Answer: Option A. -> operating system
Answer: Option D. -> control unit
Answer: Option A. -> Data, information
• Data refers to raw and unprocessed facts, figures, symbols, or observations that are collected from various sources, such as surveys, experiments, sensors, and databases.
• Information is the processed data that has meaning and value. It represents the outcome of data processing or analysis and provides insights, knowledge, or understanding that can support decision-making, planning, communication, or control.
• Therefore, data is the input to the process of creating information, and information is the output of data processing.
• The transformation of data into information involves several steps, such as data collection, data storage, data cleaning, data integration, data analysis, data visualization, and data interpretation.
• The quality of information depends on the quality of data, which should be accurate, complete, consistent, relevant, and timely. In other words, the accuracy of information is directly related to the quality of data used to produce it.
• Various tools and techniques can be used to process data into information, such as statistical analysis, machine learning, data mining, natural language processing, and information systems.
• Examples of data and information in different domains are:
• Data refers to raw and unprocessed facts, figures, symbols, or observations that are collected from various sources, such as surveys, experiments, sensors, and databases.
• Information is the processed data that has meaning and value. It represents the outcome of data processing or analysis and provides insights, knowledge, or understanding that can support decision-making, planning, communication, or control.
• Therefore, data is the input to the process of creating information, and information is the output of data processing.
• The transformation of data into information involves several steps, such as data collection, data storage, data cleaning, data integration, data analysis, data visualization, and data interpretation.
• The quality of information depends on the quality of data, which should be accurate, complete, consistent, relevant, and timely. In other words, the accuracy of information is directly related to the quality of data used to produce it.
• Various tools and techniques can be used to process data into information, such as statistical analysis, machine learning, data mining, natural language processing, and information systems.
• Examples of data and information in different domains are:
- Financial data (e.g., stock prices, balance sheets, cash flow statements) can be processed into financial information (e.g., trends, ratios, forecasts, valuations) that helps investors, managers, and regulators to make informed decisions about financial assets and liabilities.
- Medical data (e.g., patient records, clinical trials, genomic data) can be processed into medical information (e.g., diagnoses, treatments, prognoses, personalized medicine) that helps healthcare providers, researchers, and patients to improve health outcomes and reduce costs.
- Social media data (e.g., tweets, posts, likes, comments) can be processed into social media information (e.g., sentiment, influence, network analysis, customer feedback) that helps marketers, analysts, and policymakers to understand user behavior, preferences, and attitudes and to design effective communication strategies.
Answer: Option D. -> All of these
Question 17.
Definition of Hard Copy:
Hard copy is a physical printed, written, or drawn form of a digital document. It is a physical representation of an electronic document, such as a file on a computer's hard drive, printer, or other storage device.
Explanation:
Hard copy is a physical version of an electronic document, such as a file on a computer's hard drive, printer, or other storage device. Hard copy is often called a printed copy because it is printed out and can be viewed or read. Hard copies are usually stored in a file cabinet or other physical storage medium.
Benefits of Hard Copy:
• Hard copies are often easier to read than digital documents because they can be viewed without the need for a computer or other device.
• Hard copies are more secure, as they cannot be easily modified or deleted.
• Hard copies are easier to store and organize than digital documents.
• Hard copies can be easily shared with others.
• Hard copies are more durable and less likely to be damaged or lost.
Disadvantages of Hard Copy:
• Hard copies are more expensive to produce than digital documents.
• Hard copies take up physical space and can be difficult to store
Answer: Option C. -> hard copy
Answer: Option A. -> Data
Answer: Option D. -> processing
Processing is a type of action to be taken on data. It is a series of activities that take place in a computer, such as input, output, manipulation, and storage of data. Processing involves the transformation of input data into meaningful output.
Processing is the fundamental component of any computer system. It can be divided into two categories: data processing and program processing. Data processing involves manipulating a set of data according to instructions, while program processing involves executing instructions for the purpose of carrying out a specific task.
Processing is an essential part of any computer system. A computer system consists of hardware, software, and data. The hardware is responsible for the physical components of the system, such as the processor, memory, and input/output devices. The software provides instructions for the hardware to carry out specific tasks, while the data is the information that is being processed.
Processing is carried out in different ways. For example, data can be processed by a computer program, a human user, or a combination of both. The data is first input into the system, then manipulated according to instructions, and finally output. The output of the data processing can be stored in a file, displayed on a monitor, or used as input for another process.
Processing is also used to refer to the manipulation of data in order to produce meaningful results. This includes activities such as sorting, filtering, and merging data. Processing can also involve the conversion of data from one format to another, such as from text to binary, or from image to audio.
Processing is carried out in a variety of ways, including through the use of programming languages, as well as through the manipulation of data. It is an essential component of any computer system and is used in a wide range of applications.
Definition:
Processing: Processing is the manipulation of data according to instructions, for the purpose of carrying out a specific task.
Summary:
• Processing is a type of action to be taken on data.
• It involves the transformation of input data into meaningful output.
• Processing involves both data processing and program processing.
• It is essential for any computer system and is used in a wide range of applications.
• Processing involves the manipulation of data in order to produce meaningful results.
Processing is a type of action to be taken on data. It is a series of activities that take place in a computer, such as input, output, manipulation, and storage of data. Processing involves the transformation of input data into meaningful output.
Processing is the fundamental component of any computer system. It can be divided into two categories: data processing and program processing. Data processing involves manipulating a set of data according to instructions, while program processing involves executing instructions for the purpose of carrying out a specific task.
Processing is an essential part of any computer system. A computer system consists of hardware, software, and data. The hardware is responsible for the physical components of the system, such as the processor, memory, and input/output devices. The software provides instructions for the hardware to carry out specific tasks, while the data is the information that is being processed.
Processing is carried out in different ways. For example, data can be processed by a computer program, a human user, or a combination of both. The data is first input into the system, then manipulated according to instructions, and finally output. The output of the data processing can be stored in a file, displayed on a monitor, or used as input for another process.
Processing is also used to refer to the manipulation of data in order to produce meaningful results. This includes activities such as sorting, filtering, and merging data. Processing can also involve the conversion of data from one format to another, such as from text to binary, or from image to audio.
Processing is carried out in a variety of ways, including through the use of programming languages, as well as through the manipulation of data. It is an essential component of any computer system and is used in a wide range of applications.
Definition:
Processing: Processing is the manipulation of data according to instructions, for the purpose of carrying out a specific task.
Summary:
• Processing is a type of action to be taken on data.
• It involves the transformation of input data into meaningful output.
• Processing involves both data processing and program processing.
• It is essential for any computer system and is used in a wide range of applications.
• Processing involves the manipulation of data in order to produce meaningful results.
Answer: Option A. -> input unit
Input unit is a component of a computer which is responsible for taking instructions from the user as input and convert them into machine language. It is an essential part of any computer system and is responsible for taking inputs through different methods such as keyboard, mouse, microphone, and other peripherals.
Input unit includes the following components:
• Keyboard: Keyboard is the most common input device and is used to enter data and instructions into the computer.
• Mouse: Mouse is used to move the cursor on the screen and select items from the menu.
• Microphone: Microphone is used to input voice commands.
• Scanner: Scanner is used to scan documents and images into the computer.
• Touch screen: Touch screen is used to input data by touching the screen.
Input unit controls the flow of data and instructions to the computer. It takes the input and converts it into a machine language, which is then processed by the processing unit. The input unit is responsible for validating the input and ensuring that the data is in the correct format.
In conclusion, input unit is responsible for converting accepted instructions into machine language. It takes input from various sources and converts it into a form that can be understood by the computer. It is an essential component of any computer system and is responsible for validating the input and ensuring that it is in the correct format.
Input unit is a component of a computer which is responsible for taking instructions from the user as input and convert them into machine language. It is an essential part of any computer system and is responsible for taking inputs through different methods such as keyboard, mouse, microphone, and other peripherals.
Input unit includes the following components:
• Keyboard: Keyboard is the most common input device and is used to enter data and instructions into the computer.
• Mouse: Mouse is used to move the cursor on the screen and select items from the menu.
• Microphone: Microphone is used to input voice commands.
• Scanner: Scanner is used to scan documents and images into the computer.
• Touch screen: Touch screen is used to input data by touching the screen.
Input unit controls the flow of data and instructions to the computer. It takes the input and converts it into a machine language, which is then processed by the processing unit. The input unit is responsible for validating the input and ensuring that the data is in the correct format.
In conclusion, input unit is responsible for converting accepted instructions into machine language. It takes input from various sources and converts it into a form that can be understood by the computer. It is an essential component of any computer system and is responsible for validating the input and ensuring that it is in the correct format.
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