Computer Hardware and Maintenance

Input Devices

• Input devices allow users to enter data into a computer system.
• Examples include keyboards, mice, touchscreens, and scanners.

Output Devices

• Output devices display or present data processed by a computer system.
• Examples include monitors, printers, and speakers.

Processing

• Processing involves the manipulation of data according to instructions.
• Central Processing Unit (CPU) is the primary component responsible for processing.

Monitor Maintenance

• Avoid physical damage to the screen.
• Keep the monitor clean and free from dust and debris.
• Don't place objects on the monitor that could cause damage.
• Keep the environment cool and avoid extreme temperatures.

Mouse Maintenance

• Keep the mouse clean and free from dust.
• Replace the mouse if the scroll wheel is malfunctioning.
• Ensure the mouse is properly connected to the computer.

Software Maintenance

• Keep software updated to fix bugs and enhance functionality.
• Regularly back up data.
• Use antivirus software.
• Avoid installing suspicious software.

Primary Storage (RAM)

• Primary storage is volatile memory.
• It stores data that is currently being used.
• It looses data when the power is off.

Secondary Storage

• Secondary storage is non-volatile memory.
• It stores data for long-term use.
• Examples include hard drives, SSDs, and flash drives.

GPU (Graphics Processing Unit)

• The GPU is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display.

CPU (Central Processing Unit)

• The CPU is the primary component of the computer responsible for processing instructions.
• It controls all functions of the computer.

Roles of Storage Devices

• Storage devices store and retrieve data.
• They enable long-term data retention.
• They often provide a way to share data on a network.

NAS (Network Attached Storage)

• NAS is a specialized storage device that is networked to a computer system for storage and retrieval of data.
• Often used to store and share files.

Volatile vs. Non-Volatile

• Volatile storage loses data when the power is turned off. RAM is volatile.
• Non-volatile storage retains data even when the power is off. Hard drives and SSDs are non-volatile.

Components of a Computer System

• Input Devices
• Output Devices
• Processing Unit
• Storage Devices

Elements of a Computer System

• Hardware: Physical components
• Software: Instructions for the hardware
• Data: Processed information
• People: Users and operators

Evolution of Computers

• Computers have become smaller, faster, and more powerful over time.
• Early computers were large and expensive, but technology has enabled smaller, more affordable options.

Input

• Information entered into the computer

Output

• Data processed and presented to the user

Storage

• Data is stored for later use

Process

• Manipulation of data according to instructions.

Basic Parts of a Computer System

• Input, processing, output, storage

Types of Storage

• Primary Storage (RAM)
• Secondary Storage (Hard drives, SSDs, etc)

Test your knowledge on input and output devices, processing, and maintenance tips for monitors and mice. This quiz covers essential information about how these components work together within a computer system. Ideal for beginners and those looking to refresh their knowledge in computer hardware.