Questions and Answers
What is the primary function of a computer?
To perform operations on given data
What are the four basic computer operations?
Accept data, process data, produce output, and store results
What is a common use of computers today?
Performing calculations and getting information
What is replacing computers in contemporary times?
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What is a unique feature of modern computers?
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What is a common application of computers?
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What type of radiation is emitted when solar radiation strikes the Earth's surface?
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What is the range of wavelengths for thermal radiation?
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What is the term for the sum of diffused and direct insolation?
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What is responsible for absorbing and scattering solar radiation as it passes through the atmosphere?
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What is the term for solar radiation that reaches the Earth's surface without being diffused?
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What is the wavelength range for visible thermal radiation?
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Study Notes
Computer Basics
- A computer is a programmable electronic device that accepts data, performs operations on the data, and presents the results, with the ability to store data or results as needed.
Computer Operations
- There are four basic computer operations: accepting data (input), processing the data, producing output, and storing results as needed.
Types of Computers
- Computers come in various forms, including personal computers (PC) and other shapes.
Computer Functions
- Computers are designed to perform a variety of tasks, including controlling small and large machines, and have significant presence in every field.
Computer Usage
- Computers are widely used for tasks such as:
- Calculations
- Getting information
- Watching movies
- Formulating documents
- Organizing meetings
- Writing
Smartphones vs. Computers
- Smartphones are replacing computers, offering similar capabilities, such as:
- Accessing and processing data
- Camera capabilities
- Interfaces
- Internet browsing
- Text and instant messaging
- Wi-Fi
- Geographical Positioning System (GPS)
- Input can be provided through touchscreen interfaces, and output can be seen on the screen.
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