18 Questions
What is the primary function of a webcam?
To capture video and images
Which type of peripheral is used to connect a computer to the internet?
Modem
What is the primary function of a printer?
To print physical copies of documents and images
What is the primary function of a microphone?
To capture audio input
What is the primary function of an external hard drive?
To provide additional storage for data
What is the primary function of a router?
To connect multiple devices to a network
What is the primary function of a scanner?
To capture images or documents and convert them into digital format
What is an important consideration when using peripherals?
The compatibility of the peripheral with the computer's operating system and hardware
What is the primary purpose of system software?
To manage computer hardware and provide a platform for running applications
Which stage of the software development life cycle involves writing the code?
Implementation
What is a characteristic of proprietary software?
Owned by an individual or organization
Which of the following is an example of application software?
Productivity software (Microsoft Office)
What is the primary purpose of programming software?
To develop, compile, and debug software programs
What is the final stage of the software development life cycle?
Deployment
Which software characteristic refers to the ability to run on different hardware and software platforms?
Portability
What is the primary purpose of the analysis stage of the software development life cycle?
To identify requirements and define project scope
Which of the following is an example of open-source software?
Linux
What is the primary purpose of the testing stage of the software development life cycle?
To verify the software meets requirements
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
Learn about the different input and output devices that connect to a computer, including keyboards, scanners, and printers.
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