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Questions and Answers
What is the primary function of a webcam?
What is the primary function of a webcam?
Which type of peripheral is used to connect a computer to the internet?
Which type of peripheral is used to connect a computer to the internet?
What is the primary function of a printer?
What is the primary function of a printer?
What is the primary function of a microphone?
What is the primary function of a microphone?
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What is the primary function of an external hard drive?
What is the primary function of an external hard drive?
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What is the primary function of a router?
What is the primary function of a router?
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What is the primary function of a scanner?
What is the primary function of a scanner?
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What is an important consideration when using peripherals?
What is an important consideration when using peripherals?
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What is the primary purpose of system software?
What is the primary purpose of system software?
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Which stage of the software development life cycle involves writing the code?
Which stage of the software development life cycle involves writing the code?
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What is a characteristic of proprietary software?
What is a characteristic of proprietary software?
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Which of the following is an example of application software?
Which of the following is an example of application software?
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What is the primary purpose of programming software?
What is the primary purpose of programming software?
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What is the final stage of the software development life cycle?
What is the final stage of the software development life cycle?
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Which software characteristic refers to the ability to run on different hardware and software platforms?
Which software characteristic refers to the ability to run on different hardware and software platforms?
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What is the primary purpose of the analysis stage of the software development life cycle?
What is the primary purpose of the analysis stage of the software development life cycle?
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Which of the following is an example of open-source software?
Which of the following is an example of open-source software?
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What is the primary purpose of the testing stage of the software development life cycle?
What is the primary purpose of the testing stage of the software development life cycle?
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Study Notes
Peripherals
Input Devices
- Keyboard: allows users to input text and commands
- Mouse: allows users to interact with graphical user interfaces (GUIs)
- Scanner: captures images or documents and converts them into digital format
- Webcam: captures video and images
- Microphone: captures audio input
Output Devices
- Monitor: displays video and images
- Speakers: produce audio output
- Printer: prints physical copies of documents and images
- Plotter: prints large-format documents and images
Storage Devices
- External Hard Drive: provides additional storage for data
- USB Flash Drive: portable storage device for small amounts of data
- Memory Card: used in devices such as cameras and smartphones to store data
Other Peripherals
- Modem: connects a computer to the internet
- Router: connects multiple devices to a network
- Game Controller: specialized input device for gaming
- Graphics Tablet: input device for digital art and design
Characteristics of Peripherals
- Connectivity: peripherals can connect to a computer via USB, wireless, or other methods
- Compatibility: peripherals must be compatible with the computer's operating system and hardware
- Purpose: peripherals serve specific functions, such as input, output, or storage
Peripherals
Input Devices
- Keyboard allows users to input text and commands
- Mouse enables users to interact with graphical user interfaces (GUIs)
- Scanner captures images or documents and converts them into digital format
- Webcam captures video and images
- Microphone captures audio input
Output Devices
- Monitor displays video and images
- Speakers produce audio output
- Printer prints physical copies of documents and images
- Plotter prints large-format documents and images
Storage Devices
- External Hard Drive provides additional storage for data
- USB Flash Drive is a portable storage device for small amounts of data
- Memory Card is used in devices such as cameras and smartphones to store data
Other Peripherals
- Modem connects a computer to the internet
- Router connects multiple devices to a network
- Game Controller is a specialized input device for gaming
- Graphics Tablet is an input device for digital art and design
Characteristics of Peripherals
- Peripherals can connect to a computer via USB, wireless, or other methods
- Peripherals must be compatible with the computer's operating system and hardware
- Peripherals serve specific functions, such as input, output, or storage
Definition of Software
- Software is a set of instructions or programs that tell a computer what to do
- It is a collection of data, instructions, and algorithms used to operate computers and other devices
Types of Software
System Software
- Manages computer hardware and provides a platform for running applications
- Examples: operating systems (Windows, macOS, Linux), device drivers, firmware
Application Software
- Performs specific tasks or functions for users
- Examples: productivity software (Microsoft Office), graphics software (Adobe Photoshop), games
Programming Software
- Used to develop, compile, and debug software programs
- Examples: programming languages (Java, Python), integrated development environments (Eclipse, Visual Studio)
Software Development Life Cycle
- Analysis: Identify requirements and define project scope
- Design: Create a detailed design of the software
- Implementation: Write the code
- Testing: Verify the software meets requirements
- Deployment: Release the software to users
- Maintenance: Update and fix the software
Software Licenses
Proprietary Software
- Owned by an individual or organization
- Users are granted a license to use the software
- Examples: Microsoft Office, Adobe Photoshop
Open-Source Software
- Source code is available for modification and distribution
- Users have the freedom to use, modify, and distribute the software
- Examples: Linux, Apache, Firefox
Software Characteristics
- Portability: Ability to run on different hardware and software platforms
- Scalability: Ability to handle increased load or data
- Reliability: Ability to perform consistently and correctly
- Security: Ability to protect against unauthorized access or data breaches
- Usability: Ease of use for the intended user
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Description
Learn about the different input and output devices that connect to a computer, including keyboards, scanners, and printers.
