Post on 06-Apr-2018
transcript
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 1/24
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
ITE PC v4.0
Chapter 1 1
Personal Computers
and Applications
Networking for Home and Small Businesses –
Chapter 1
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 2/24
ITE PC v4.0
Chapter 1 2 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Objectives Identify the purpose and uses of personal computers
and describe local and network applications.
Compare and contrast different types of computingdevices.
Explain the binary representation of data.
Determine appropriate components and peripheraldevices to meet requirements.
Install, verify, and upgrade computer components andperipherals.
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 3/24
ITE PC v4.0
Chapter 1 3 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Purpose and Uses of Personal Computers Multiple uses for computers
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 4/24
ITE PC v4.0
Chapter 1 4 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Purpose and Uses of Personal Computers Common local and network applications
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 5/24
ITE PC v4.0
Chapter 1 5 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Types of Computing Devices Different types of Computers
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 6/24
ITE PC v4.0
Chapter 1 6 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Types of Computing Devices Types and features of servers
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 7/24ITE PC v4.0
Chapter 1 7 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Types of Computing Devices Features of a desktop personal computer (PC)
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 8/24ITE PC v4.0
Chapter 1 8 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Types of Computing Devices Features of a workstation
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 9/24ITE PC v4.0
Chapter 1 9 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Types of Computing Devices Types and features of portable devices
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 10/24ITE PC v4.0
Chapter 1 10 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Binary Representation of Data Digital (binary) representation of various common forms
of data
Using the proper units for measuring information
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 11/24ITE PC v4.0
Chapter 1 11 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Binary Representation of Data Convert approximately between bits, bytes, Kilobytes,
Megabytes, and Gigabytes
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 12/24ITE PC v4.0
Chapter 1 12 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Binary Representation of Data Measuring speed, resolution and frequency
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 13/24
ITE PC v4.0
Chapter 1 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Plan for computer purchase: preassembled or custom
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 14/24
ITE PC v4.0
Chapter 1 14 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Motherboard
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 15/24
ITE PC v4.0
Chapter 1 15 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Central Processing Unit (CPU)
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 16/24
ITE PC v4.0
Chapter 1 16 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Random Access Memory (RAM)
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 17/24
ITE PC v4.0
Chapter 1 17 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Adapter cards add functionality to a computer system
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 18/24
ITE PC v4.0
Chapter 1 18 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Storage Devices and Requirements
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 19/24
ITE PC v4.0
Chapter 1 19 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Peripheral device purposes and requirements
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 20/24
ITE PC v4.0
Chapter 1 20 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Determining Appropriate Components andPeripheral Devices
Importance of UPS and Surge Protector
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 21/24
ITE PC v4.0
Chapter 1 21 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Install, Verify and Upgrade Components andPeripherals
Computer Repair Best Practices
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 22/24
ITE PC v4.0
Chapter 1 22 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Install, Verify and Upgrade Components andPeripherals
Installing Peripherals and Verifying Operation
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 23/24
ITE PC v4.0
Chapter 1 23 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
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 andHand-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. Analogfrequencies, wireless transmissions and radio frequencies aremeasured in Hertz.
Things to consider when purchasing a computer: Motherboard,CPU, RAM, Adapter Cards, Storage, Peripherals, UPS, SurgeSuppressors
Computers are a collection of very complex components andperipherals. Safety procedures must be followed when workinginside a computer, both to protect the equipment and prevent harmto the technician.
8/3/2019 Discovery Home SB Chapter 1
http://slidepdf.com/reader/full/discovery-home-sb-chapter-1 24/24
ITE PC v4 0