© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Personal Computers and Applications Networking for Home and Small Businesses.

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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Personal Computers and Applications Networking for Home and Small Businesses – Chapter 1

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 2 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.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 3 Purpose and Uses of Personal Computers  Multiple uses for computers

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 4 Purpose and Uses of Personal Computers  Common local and network applications

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 5 Types of Computing Devices  Different types of Computers

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 6 Types of Computing Devices  Types and features of servers

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 7 Types of Computing Devices  Features of a desktop personal computer (PC)

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 8 Types of Computing Devices  Features of a workstation

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 9 Types of Computing Devices  Types and features of portable devices

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 10 Binary Representation of Data  Digital (binary) representation of various common forms of data  Using the proper units for measuring information

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 11 Binary Representation of Data  Convert approximately between bits, bytes, Kilobytes, Megabytes, and Gigabytes

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 12 Binary Representation of Data  Measuring speed, resolution and frequency

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 13 Determining Appropriate Components and Peripheral Devices  Plan for computer purchase: preassembled or custom

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 14 Determining Appropriate Components and Peripheral Devices  Motherboard

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 15 Determining Appropriate Components and Peripheral Devices  Central Processing Unit (CPU)

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 16 Determining Appropriate Components and Peripheral Devices  Random Access Memory (RAM)

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 17 Determining Appropriate Components and Peripheral Devices  Adapter cards add functionality to a computer system

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 18 Determining Appropriate Components and Peripheral Devices  Storage Devices and Requirements

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 19 Determining Appropriate Components and Peripheral Devices  Peripheral device purposes and requirements

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 20 Determining Appropriate Components and Peripheral Devices  Importance of UPS and Surge Protector

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 21 Install, Verify and Upgrade Components and Peripherals  Computer Repair Best Practices

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 22 Install, Verify and Upgrade Components and Peripherals  Connect Computer System components and verify operation

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 23 Install, Verify and Upgrade Components and Peripherals  Installing Peripherals and Verifying Operation

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 24 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.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 25

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