Computer Hardware Fundamentals 2nd Semester Mock Exam

Computer Hardware Fundamentals

Central Processing Unit (CPU)

• Considered the "brain" of the computer
• Responsible for performing calculations and conversions, and reading and writing data and instructions to and from storage devices

Random Access Memory (RAM)

• Stores data temporarily while the computer is running
• Used to store data that needs to be accessed quickly by the CPU
• Volatile memory, meaning it loses its data when the power is turned off

Hard Disk Drive (HDD) and Solid-State Drive (SSD)

• Store the computer's operating system, software programs, and user data even when the computer is turned off
• Non-volatile memory, meaning it retains its data even when the power is turned off
• HDD uses spinning disks to store data, while SSD uses memory chips
• SSD is faster and more expensive than HDD

Motherboard

• Connects and allows communication between different computer components
• Controls the memory cache, power management, external buses, and some peripheral devices

Power Supply Unit (PSU)

• Provides power to the other components in a computer
• Converts AC power to DC power to power the computer's components

Graphics Card (GPU)

• Processes and renders graphics for display
• Not responsible for storing the computer's operating system or providing power to the computer's components

BIOS (Basic Input/Output System)

• Provides the firmware for initializing hardware during the boot process
• Not responsible for controlling the computer's power supply or managing the computer's memory

Input/Output Devices

• Keyboard is used to input data into a computer
• Printer is not an input device, but an output device
• Mouse is an input device
• Scanner is an input device
• Microphone is an input device

Computer Ports

• USB is a type of computer port
• HDMI is a type of computer port
• Wi-Fi is not a type of computer port, but a type of network connectivity
• Ethernet is a type of computer port
• CRT, LCD, and LED are types of computer monitors, not ports
• LED monitors have lower power consumption and better brightness and contrast than LCD monitors

Storage Devices

• Hard Disk Drive (HDD) is a type of storage device
• Solid-State Drive (SSD) is a type of storage device
• Optical Disk Drive (ODD) is a type of storage device
• Random Access Memory (RAM) is not a type of storage device
• Cache memory is a type of memory, not a storage device
• Virtual memory is a type of memory, not a storage device

Network Components

• Network Interface Card (NIC) connects the computer to a network
• Modem is responsible for converting digital signals to analog signals over telephone lines
• Router is not responsible for converting digital signals to analog signals over telephone lines
• Switch is not responsible for converting digital signals to analog signals over telephone lines
• Hub is not responsible for converting digital signals to analog signals over telephone lines

Other Components

• Heat sink is used to cool the computer's components
• UPS (Uninterruptible Power Supply) is used to prevent damage to the computer during a power surge or outage
• KVM Switch is used to enable the sharing of the monitor, mouse, and keyboard between two computers
• Fiber Optic cable is used to transmit data at a very high speed over long distances

This quiz tests your knowledge of computer hardware fundamentals, covering topics such as CPU, RAM, and storage devices. Prepare for your 2nd semester mock examination with this practice quiz.