Presentation is loading. Please wait.

Presentation is loading. Please wait.

A+ Certification Guide Chapter 1 Technician Essentials and PC Anatomy.

Similar presentations


Presentation on theme: "A+ Certification Guide Chapter 1 Technician Essentials and PC Anatomy."— Presentation transcript:

1 A+ Certification Guide Chapter 1 Technician Essentials and PC Anatomy

2 Chapter 1 Objectives  The Essential Parts of Any Computer: –The vital components of a PC—an overview  Hardware, Software, and Firmware: –Explain how hardware, software, and firmware interact, and define the major types of software and utility programs.  Points of Failure: –Learn about possible issues that could cause the computer to fail— for example, overheating, hard drive failure, or loose adapter cards.  The CompTIA Six-Step Troubleshooting Process  PC Tools: –Demonstrate how to assemble/disassemble the computer safely.  Resources to prepare for the exam: –Websites and exam resources.

3 Essential Parts of a Computer  Storage devices  Motherboards  Power supplies  Processors/CPUs  Memory  Display devices  Input, multimedia, and biometric devices  Adapter cards  Ports and cables  Cooling systems

4 Front Side of PC

5 What Are All Those Connections and Lights For?

6 Motherboard Components

7 Figure fig04 Illustration: Please add callouts as indicated and initial-cap Proprietary. Example: A Laptop PC Side View

8 Figure fig05 Illustration: Please add callouts as indicated remove hyphen and space for DVD multioptical drive. Example: A Laptop PC side view

9 Points of Failure  Overheating: –Failure of the fans in the power supply or those attached to the processor, northbridge chip, or video card can cause overheating.  Loose peripheral card: –A loose add-on card might not be detected by plug-and-play or might have intermittent failures after installation.  Inability to start the computer: –Loose processor/memory module can prevent the computer from starting.  Drive failures: –Improperly connected power or data cables, or improperly configured jumper blocks, will not work properly.  Front panel failures: –Cables connecting the case switch, reset switch, and status lights.  Battery failure  BIOS chip failure

10 Hardware, Software, and Firmware  Hardware: –Components that can generally be touched or seen. –Often a source of failure: Loose connections Physical damage Electrical damage (electrostatic, voltage spikes/surges) Incompatibility of devices with other devices  Software: –Drivers used to control the hardware –Applications used to generate user data –Protocols to transmit data over the network –Internal/external commands to control the system

11 The CompTIA Six-Step Troubleshooting Process StepDescription Step 1­Identify the problem. Step 2­ Establish a theory of probable cause. (Question the obvious.) Step 3­Test the theory to determine the cause. Step 4­ Establish a plan of action to resolve the problem and implement the solution. Step 5­ Verify full system functionality and, if applicable, implement preventative measures. Step 6­Document findings, actions, and outcomes.

12 Tools: Working Inside the PC Opening the Case:  Different manufacturers have different case access mechanisms.  Protect your system against electrostatic discharge (ESD). Common Tasks:  Connecting internal and external data cables. –Recheck periodically; can work loose over time.  Installing a PCI card (for example, video or sound card).  Replacing the power supply.  Replacing the hard drive.  Replacing the CD-ROM/DVD-ROM.  Upgrading memory.  Installing a USB support.

13 Illustration: This is a pick up of Figure 1-1 from "CompTIA A and Cert Guide“ 2e (ISBN: ). Figure fig07 Basic Tools for Assembly/Disassembly of Computers

14 Figure 1-8 Illustration: This is a pick up of Figure 2-6 from "CompTIA A and Cert Guide“ 2e (ISBN: ).

15 System and Testing Tools  Multimeter:  AC/DC voltage  Ohms  Amperage  Power Supply Tester:  Can save a motherboard from being ruined by a bad power supply  Loopback plugs:  Serial, network, and USB port testing

16 Network Testing Tools  Cable tester  Punch-down tool  Loopback plugs  Toner probes  Wire strippers  Crimper

17 What Have You Learned?  Name four common hardware failures.  How does the CPU receive data?  What device has the IRQ with the highest priority?  Why is it important to use ESD precaution?  What is a resource conflict?  How is software different from firmware?

18 Exercise  Activity 2.2: The motherboard and CPU.

19 Chapter 1 Summary  Essential Parts of a Computer: –Motherboards, CPUs, video cards, and how to identify them.  Hardware, Software, and Firmware  Points of Failure: –Issues that could cause the computer to fail—for example, overheating, hard drive failure, or loose adapter cards.  Six-Step CompTIA Troubleshooting Process  Working Inside Your PC: –How to assemble/disassemble the computer safely. Next Lesson: Chapter 2


Download ppt "A+ Certification Guide Chapter 1 Technician Essentials and PC Anatomy."

Similar presentations


Ads by Google