Questions and Answers
What is the primary function of the Central Processing Unit (CPU)?
To perform calculations and operations
Which of the following is an example of an output device?
Monitor
What is the difference between a laptop and a desktop computer?
Laptop is portable, desktop is fixed
What is the purpose of memory (RAM) in a computer?
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Which type of computer is specialized for managing networks and data storage?
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What is the purpose of the operating system?
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What is an example of a software application?
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Study Notes
Basic Computer
Definition
- A computer is an electronic device that can store, process, and communicate information.
- It takes in input, processes it, and produces output.
Components
-
Hardware: Physical parts of the computer
- Input devices (keyboard, mouse, scanner)
- Central Processing Unit (CPU)
- Memory (RAM, ROM)
- Storage devices (hard drive, solid state drive)
- Output devices (monitor, printer, speaker)
-
Software: Programs and operating systems that run on the computer
- Operating System (Windows, macOS, Linux)
- Application software (Microsoft Office, Google Chrome)
Functions
- Input: Entering data into the computer (typing, scanning, clicking)
- Processing: Performing calculations and operations on the data (calculations, comparisons)
- Storage: Holding data and programs in memory or storage devices
- Output: Presenting the results of processing (displaying on screen, printing)
Types of Computers
- Desktop: Fixed, non-portable computers for home or office use
- Laptop: Portable computers for mobility
- Tablet: Touch-screen devices for mobile use
- Server: Specialized computers for managing networks and data storage
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