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Personal Computers and Applications

Networking for Home and Small Businesses – Chapter 1

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Objectives Identify the purpose and uses of personal computers

and describe local and network applications.

Compare and contrast different types of computing devices.

Explain the binary representation of data.

Determine appropriate components and peripheral devices to meet requirements.

Install, verify, and upgrade computer components and peripherals.

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Purpose and Uses of Personal Computers Multiple uses for computers

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Purpose and Uses of Personal Computers Common local and network applications

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Types of Computing Devices Different types of Computers

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Types of Computing Devices Types and features of servers

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Types of Computing Devices Features of a desktop personal computer (PC)

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Types of Computing Devices Features of a workstation

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Types of Computing Devices Types and features of portable devices

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Binary Representation of Data Digital (binary) representation of various common forms

of data

Using the proper units for measuring information

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Binary Representation of Data Convert approximately between bits, bytes, Kilobytes,

Megabytes, and Gigabytes

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Binary Representation of Data Measuring speed, resolution and frequency

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Determining Appropriate Components and Peripheral Devices Plan for computer purchase: preassembled or custom

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Determining Appropriate Components and Peripheral Devices Motherboard

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Determining Appropriate Components and Peripheral Devices Central Processing Unit (CPU)

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Determining Appropriate Components and Peripheral Devices Random Access Memory (RAM)

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Determining Appropriate Components and Peripheral Devices Adapter cards add functionality to a computer system

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Determining Appropriate Components and Peripheral Devices Storage Devices and Requirements

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Determining Appropriate Components and Peripheral Devices Peripheral device purposes and requirements

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Determining Appropriate Components and Peripheral Devices Importance of UPS and Surge Protector

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Install, Verify and Upgrade Components and Peripherals Computer Repair Best Practices

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Install, Verify and Upgrade Components and Peripherals Connect Computer System components and verify

operation

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Install, Verify and Upgrade Components and Peripherals Installing Peripherals and Verifying Operation

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Summary Computers are used all over the world and in all types of

environments including: government, medical, education, manufacturing, legal and leisure.

There are many different types of computers available including: Mainframes, Servers, Desktop PCs, Workstations, Laptops and Hand-held portable devices.

Data is represented by binary digits (bits) organized into bytes (B), kilobytes (kB ), megabytes (MB), gigabytes (GB), and terabytes (TB). Data transfer rates are measured by bits per second. Computer screen resolution is measured in pixels. Analog frequencies, wireless transmissions and radio frequencies are measured in Hertz.

Things to consider when purchasing a computer: Motherboard, CPU, RAM, Adapter Cards, Storage, Peripherals, UPS, Surge Suppressors

Computers are a collection of very complex components and peripherals. Safety procedures must be followed when working inside a computer, both to protect the equipment and prevent harm to the technician.

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