Hardware Components Quiz

Hardware Components

Input Devices

• Keyboard: used for typing commands and data
• Mouse: used for pointing and selecting objects on the screen
• Scanner: used for scanning images and documents
• Webcam: used for capturing video and images
• Microphone: used for capturing audio

Processing Unit

• Central Processing Unit (CPU): executes instructions and performs calculations
• Arithmetic Logic Unit (ALU): performs mathematical operations
• Control Unit: retrieves and executes instructions
• Registers: small amount of memory built into the CPU

Memory

• Random Access Memory (RAM): volatile memory that stores data temporarily
• Read-Only Memory (ROM): non-volatile memory that stores data permanently
• Cache Memory: small, fast memory that stores frequently accessed data

Storage Devices

• Hard Disk Drive (HDD): non-volatile storage device that stores data on a physical disk
• Solid-State Drive (SSD): non-volatile storage device that stores data on interconnected flash memory chips
• Optical Drive: reads and writes data to optical discs (CDs, DVDs, Blu-rays)
• Flash Drive: portable storage device that stores data on a flash memory chip

Output Devices

• Monitor: displays video and images
• Printer: prints text and images on paper
• Speaker: produces audio output
• Plotter: prints large-format graphics and designs

Other Components

• Power Supply: provides power to the computer's components
• Motherboard: connects and supports the computer's components
• Graphics Card: controls the output display and performs graphical calculations
• Sound Card: controls the output audio and performs audio processing

Input Devices

• Keyboard is used for typing commands and data
• Mouse is used for pointing and selecting objects on the screen
• Scanner is used for scanning images and documents
• Webcam is used for capturing video and images
• Microphone is used for capturing audio

Processing Unit

Central Processing Unit (CPU)

• Executes instructions and performs calculations
• Consists of three main components: Arithmetic Logic Unit (ALU), Control Unit, and Registers
• ALU performs mathematical operations
• Control Unit retrieves and executes instructions
• Registers are small amount of memory built into the CPU

Memory

• Random Access Memory (RAM) is volatile memory that stores data temporarily
• Read-Only Memory (ROM) is non-volatile memory that stores data permanently
• Cache Memory is small, fast memory that stores frequently accessed data
• Cache Memory is used to speed up data access

Storage Devices

• Hard Disk Drive (HDD) is non-volatile storage device that stores data on a physical disk
• Solid-State Drive (SSD) is non-volatile storage device that stores data on interconnected flash memory chips
• Optical Drive reads and writes data to optical discs (CDs, DVDs, Blu-rays)
• Flash Drive is portable storage device that stores data on a flash memory chip

Output Devices

• Monitor displays video and images
• Printer prints text and images on paper
• Speaker produces audio output
• Plotter prints large-format graphics and designs

Other Components

• Power Supply provides power to the computer's components
• Motherboard connects and supports the computer's components
• Graphics Card controls the output display and performs graphical calculations
• Sound Card controls the output audio and performs audio processing