Computer Hardware Components

• The presentation provides an overview of computer hardware components.
• It identifies and describes peripheral devices.
• It outlines internal and external components.
• It details hardware components attached to the CPU.

External Components

• These are the parts of a computer that are visible and accessible from the outside.

Mouse

• The mouse is a pointing device.
• It sends control signals to the computer.
• It moves the cursor (arrow icon) on the screen.
• It performs click actions.

Monitor

• The monitor displays data in a visual form that can be seen.
• Images displayed on the monitor provide information to the user.

Keyboard

• Contains a set of keys to input characters (letters, numbers).
• Inputs control signals into the computer.

System Unit

• This is a container that houses the computer's internal components.
• Internal parts include the motherboard and CPU.

Internal Components

• These reside inside the system unit and are essential for the computer's operation.

Power Supply Unit

• Converts main alternating current into a low-voltage direct current.
• The direct current is supplied to other parts of the computer.
• It has its own fan for cooling.

Hard Disk Drive

• This is the primary storage device.
• Stores most of the computer's files (like those found in the Desktop folder).

Optical Disc Drive

• Reads and writes data into optical discs.
• Examples of optical discs include CDs, DVDs, and Blu-ray Discs.

Random Access Memory (RAM) Module

• The RAM module is a temporary storage device.
• It holds data that the computer is actively working on.
• The black rectangles on the module are called RAM chips.

Central Processing Unit (CPU)

• Often referred to as the "brain" of the computer.
• The CPU is responsible for processing tasks and manipulating data.

CPU Fan and Heatsink

• These components work together.
• They prevent the CPU from overheating.
• The heatsink conducts heat away from the CPU.
• The CPU fan blows air onto the heatsink to dissipate the heat.

System Fan

• Found on the left side panel and the back panel of the system unit to direct the flow of air in the system unit.

Motherboard

• Also known as the system board, and is the main circuit board.
• It includes expansion slots for adding additional circuit boards.
• Additional boards for video, sound, and communications (modem)

Internal Cables

• Drives require both a power cable and a data cable.
• Data cables connect drives to the drive controller, located on an adapter card or the motherboard.
• Power cables connect components to the power supply.

External Connections

• These are components such as plugs, ports, jacks, and connectors for connecting external devices.