Understanding Computers and the Internet

What are the main components of a desktop computer?

• printer, scanner, speakers

• CPU, motherboard, RAM, storage, power supply, graphics card, input/output devices

• operating system, software, network

• monitor, keyboard, mouse

Describe the function of input devices.

• Input devices function to allow users to enter data and commands into a computer system.

• Input devices are primarily for storing data permanently.

• Input devices function to connect computers to the internet.

• Input devices are used to display information from a computer.

What is the purpose of output devices?

• To protect the computer from viruses.

• The purpose of output devices is to present data from a computer to the user.

• To store data for future use.

• To process data before it is sent to the user.

Explain the difference between memory and storage devices.

• Memory is used for long-term data retention, while storage is for short-term access.

• Memory is permanent and slower, while storage is temporary and fast.

• Memory is temporary and fast (e.g., RAM), while storage is permanent and slower (e.g., hard drives).

• Memory and storage are the same and serve identical functions.

List three types of ports and their uses.

• 1. USB - connecting peripherals; 2. HDMI - transmitting video/audio; 3. Ethernet - wired network connections.

• Thunderbolt - charging devices

• DisplayPort - powering speakers

• VGA - connecting printers

What are the different types of printers?

• Monitor, Keyboard, Mouse

• Scanner, Copier, Projector

• Inkjet, Laser, Dot Matrix, Thermal, 3D

• Photo, Fax, Plotter

What is an operating system (OS)?

• An operating system (OS) is software that manages computer hardware and software resources.

• A device that connects computers to the internet.

• A type of computer hardware that enhances performance.

• A programming language used for software development.

What are the key features of Windows OS?

• Command line interface only

• Single-tasking environment

• Key features of Windows OS include a graphical user interface, multitasking, hardware compatibility, security features, and software support.

• Limited software compatibility

Define application software and give examples.

• Microsoft Paint, PowerPoint, and Notepad

• Hardware components such as CPUs and GPUs

• Operating systems like Windows and macOS

• Examples of application software include Microsoft Word, Excel, Adobe Photoshop, and Google Chrome.

What is the difference between LAN and WAN?

• LAN covers large geographical areas; WAN is limited to small regions.

• LAN is used for mobile devices; WAN is for desktop computers.

• LAN is a type of internet connection; WAN is a wireless network.

• LAN is for local connections; WAN is for long-distance connections.