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  • 1. Personal Computers and Applications Networking for Home and Small Businesses – Chapter 1Version 4.0 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  • 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  • 3. Purpose and Uses of Personal Computers Multiple uses for computers © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  • 4. Purpose and Uses of Personal Computers Common local and network applications © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  • 5. Types of Computing Devices Different types of Computers © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  • 6. Types of Computing Devices Types and features of servers © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  • 7. Types of Computing Devices Features of a desktop personal computer (PC) © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  • 8. Types of Computing Devices Features of a workstation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  • 9. Types of Computing Devices Types and features of portable devices © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  • 10. Binary Representation of Data Digital (binary) representation of various common forms of data Using the proper units for measuring information © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  • 11. Binary Representation of Data Convert approximately between bits, bytes, Kilobytes, Megabytes, and Gigabytes © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  • 12. Binary Representation of Data Measuring speed, resolution and frequency © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  • 13. Determining Appropriate Components andPeripheral Devices Plan for computer purchase: preassembled or custom © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  • 14. Determining Appropriate Components andPeripheral Devices Motherboard © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  • 15. Determining Appropriate Components andPeripheral Devices Central Processing Unit (CPU) © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  • 16. Determining Appropriate Components andPeripheral Devices Random Access Memory (RAM) © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  • 17. Determining Appropriate Components andPeripheral Devices Adapter cards add functionality to a computer system © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  • 18. Determining Appropriate Components andPeripheral Devices Storage Devices and Requirements © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  • 19. Determining Appropriate Components andPeripheral Devices Peripheral device purposes and requirements © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  • 20. Determining Appropriate Components andPeripheral Devices Importance of UPS and Surge Protector © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  • 21. Install, Verify and Upgrade Components andPeripherals Computer Repair Best Practices © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  • 22. Install, Verify and Upgrade Components andPeripherals Connect Computer System components and verify operation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  • 23. Install, Verify and Upgrade Components andPeripherals Installing Peripherals and Verifying Operation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  • 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24
  • 25. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25