QUARTER 1 WEEK 3 - COMPUTER HARDWARE

INSTALLING AND CONFIGURING COMPUTER SYSTEMS

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BRIEF INTRODUCTION

Computer hardware is the physical components that a computer system requires to function.

It encompasses everything with a circuit board that operates within a computer, including motherboard, graphics card, CPU, fans, webcam, power supply and so on.​

Multiple Choice

Do not remove expansion cards from a computer when it is turned on.

• TRUE

• FALSE

Components of a System Unit

System Unit

The main part of a computer sometimes called the chassis. it includes the following parts: Processor, Memory chips, buses, expansion slots and cards.

Let's try to identify some of the basic component of computers

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Motherboard

It is the main circuit board of the computer. It is a thin plate that houses the processor, memory, hard drive and optical drive connectors, video and audio expansion cards, and connections to your computer's ports (such as USB ports). Any component of the machine is connected to the motherboard, either directly or indirectly.

CPU

The central processing unit (CPU), also known as a processor, is found on the motherboard inside the computer case. It is often referred to as the main "brain" or "heart" of a computer syste, and its role is to execute commands and performs all of the instructions.

RAM (Random Access Memory)- The primary memory of a computer system's main purpose is to temporarily store data. it is a volatile memory, meaning it holds data only when the power is On. when the power is OFF, RAM's contents will be lost.

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ROM (Read Only Memory)

-is a non-volatile memory meaning it holds data even when the power is ON or OFF. ​

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Hard Disk drive - Also known as hard drive, is a magnetic storage device that is installed inside the computer. the hard drive is used as permanent storage for data. In a Windows Computer, the hard drive is usually configured as the C: drive and contains the operating system and applications.

Power Supply Unit

A computer's power supply unit transforms power from a wall outlet to the form of power needed by the computer. It supplies power to the motherboard and other components through cables.

Expansion Bus - A bus is a data pathway between several hardware components inside or outside a computer. it does not only connect the parts of the CPU to each other, but also links the CPU with other important hardware.

Adapters (Printed Circuit Boards) - also called interface cards that enable the computer to use a peripheral device for which it does not have the necessary connections or circuit boards. they are often used to permit upgrading to a new different hardware.

Optical Drive- is a storage device that uses lasers to read data on the optical media. there are three types of optical dives:

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-Compact Disc (CD)

-Digital Versatile Disc (DVD)

-Blu-ray Disc (BD)​

Computer Fan - Another part within the computer system unit is a fan. The fan also circulates cool air through the heat sinks of different devices, including processors and chipsets.

Computer Data Cables - The data cable connects the hard drive to the motherboard and vice versa. SATA and IDE data cables are the two most common types of data cables. 

REMEMBER

Understanding the components of a system unit and its functions is vital in order to find out what the problem is if the computer stops working. You must also be familiar with electronic devices in order to understand basic machine troubleshooting.

CHECKING YOUR UNDERSTANDING!!

Directions: It is essential to recognize the different components of a system unit and its functions. Unjumble the set of words below, some of the letters has an equivalent number below it. Transfer the numbered letters in the box to unveil mystery word.

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POST TEST

Directions: Read the following questions carefully. Choose the correct answer from the given choices.

Multiple Choice

It is a thin plate that houses the processor, memory, hard drive and optical drive connectors, video and audio expansion cards, and connections to your computer's ports (such as USB ports).

• CPU

• Hard disk drive

• Motherboard

• Power Supply Unit

Multiple Choice

It is often referred to as the computer's brain, and its role is to execute commands.

• CPU

• Hard Disk Drive

• Motherboard

• Power Supply Unit

Multiple Choice

It supplies power to the motherboard and other components through cables.

• CPU

• Hard Disk Drive

• Motherboard

• Power Supply Unit

Multiple Choice

It is normally a rectangular container that houses other important hardware components

• CD-ROM

• Computer Fan

• Motherboard

• System Unit

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