CompTIA A+ 220-701 and 220-702 Cert guide
Learn, prepare, and practice for exam success Master every topic on both new 2009 A+ exams. Assess your knowledge and focus your learning. Get the practical workplace knowledge you need! DVD Features 2 Complete Sample Exams Start-to-finish A+ preparation from the world’s #1 PC hardware expert, Scott...
Otros Autores: | , , |
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Formato: | Libro electrónico |
Idioma: | Inglés |
Publicado: |
[Place of publication not identified]
Pearson
2010
|
Edición: | 1st edition |
Materias: | |
Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009629104006719 |
Tabla de Contenidos:
- Cover
- Table of Contents
- Introduction
- Chapter 1 PC Technician Essentials
- PC Tools
- Preventing Electrostatic Discharge
- The CompTIA Six-Step Troubleshooting Process
- Numbering Systems Used in Computers
- Decimal Numbering System
- Binary Numbering System
- Hexadecimal Numbering System
- Measuring Data Transfer and Frequency
- Bandwidth
- Hertz (Hz)
- Important Websites
- Chapter 2 PC Anatomy 101
- Do I Know This Already?" Quiz
- The Essential Parts of Any Computer
- Front and Rear Views of a Desktop PC
- All Around a Notebook (Laptop) Computer
- Quick Reference to PC Components
- Points of Failure
- Points of Failure on a Desktop Computer
- Points of Failure on a Notebook Computer
- Hardware, Software, and Firmware
- Hardware
- Software
- Firmware
- Why Hardware, Software, and Firmware Are Important to Understand
- Working Inside Your PC
- Opening the Case of a Desktop PC
- Taking ESD Precautions
- Connecting Internal and External Data Cables
- Installing a PCI Card
- Hardware Resources
- IRQs
- I/O Port Addresses
- DMA (Direct Memory Access) Channels
- Memory Addresses
- Viewing Hardware Resources in Use
- Chapter 3 Motherboards, Processors, and Adapter Cards
- Do I Know This Already?" Quiz
- Motherboards and Their Components
- The System Bus and I/O Bus
- Form Factors
- Integrated I/O Ports
- Memory Slots
- Expansion Slots
- Mass Storage Interfaces
- Choosing the Best Motherboard for the Job
- Installing Motherboards
- Troubleshooting Motherboards
- Processors and CPUs
- Overview of Processor Differences
- Intel Processors
- AMD Processors
- Processor Sockets and Packaging
- CPU Technologies
- Choosing the Best Processor for the Job
- Installing Processors
- Troubleshooting Processors
- Installing Adapter Cards
- General Installation
- Display Adapters
- Sound Cards.
- Video Capture Cards
- Troubleshooting Adapter Cards
- Chapter 4 BIOS
- Do I Know This Already?" Quiz
- Understanding BIOS, CMOS, and Firmware
- Configuring the System BIOS
- Accessing the BIOS Setup Program
- BIOS Settings Overview
- Main Menu
- Standard Features/Settings
- Advanced BIOS Settings/Features
- Integrated Peripherals
- Power Management
- PnP/PCI Configurations
- Hardware Monitor
- Processor and Memory Configuration
- Security Features
- Exiting the BIOS and Saving/Discarding Changes
- Power-On Self-Test and Error Reporting
- Beep Codes
- POST Error Messages
- POST Hex Codes
- BIOS Updates
- Flash BIOS Update
- BIOS Chip Replacement
- Chapter 5 Power Supplies and System Cooling
- Do I Know This Already?" Quiz
- Power Supplies
- Power Supply Ratings
- Multivoltage Power Supplies
- Causes and Cures of Power Supply Overheating
- Replacing Power Supply Form Factors and Connectors
- Removing and Replacing the Power Supply
- Testing Power Supplies with a Multimeter
- Determining Power Supply DC Voltage Levels
- Avoiding Power Supply Hazards
- Power Protection Types
- Surge Suppressors
- Battery Backup Units (UPS and SPS)
- Buying the Correct-Sized Battery Backup System
- Power Conditioning Devices
- Troubleshooting Power Problems
- System Cooling
- Passive and Active Heat Sinks
- North/Southbridge Cooling
- Chapter 6 RAM
- Do I Know This Already?" Quiz
- RAM Basics
- RAM Types
- DRAM
- SRAM
- SDRAM
- DDR SDRAM
- DDR2 SDRAM
- Rambus
- Operational Characteristics
- Comparison of Memory Modules
- Memory Module Width
- Parity and Non-Parity Memory
- ECC and Non-ECC Memory
- Registered and Unbuffered Memory
- Single-Sided and Double-Sided Memory
- Installing Memory Modules
- Installing DIMMs and Rambus RDRAM Modules
- Troubleshooting Memory
- Verifying RAM Compatibility.
- Overclocking Can Lead to System Instability
- Avoid Mixing Metals in RAM and Sockets
- Use Caution When Mismatching RAM Speeds
- EDO Compatibility with Other RAM Types
- Parity Error - System Halted" Message
- RAM-Sizing Errors at Bootup
- Determining Whether Cache RAM Is the Source of a Memory Problem
- Other Methods for RAM Testing
- Preventative Maintenance for Memory
- Chapter 7 I/O and Multimedia Ports and Devices
- Do I Know This Already?" Quiz
- Understanding I/O Ports
- USB
- SCSI
- Serial (COM)
- Parallel (LPT)
- IEEE 1394 (FireWire)
- PS/2 (Mini-DIN)
- Centronics
- 1/8-inch Audio Mini-Jack
- SPDIF Digital Audio
- MIDI Port
- RG-6 Coaxial
- Understanding Input Devices
- Keyboard
- Mouse and Pointing Devices
- Bar Code Reader
- Biometric Devices
- Touch Screens
- Understanding Multimedia Devices
- Webcam
- Digital Camera
- MIDI Music and MIDI Ports
- Sound Card
- Microphone
- Video Capture Card
- Installing Input and Multimedia Devices
- Installing a Keyboard
- Installing a Mouse or Other Pointing Device
- Installing a Bar Code Reader
- Installing a Webcam
- Installing a Digital Camera
- Installing a MIDI Port
- Installing a Microphone
- Installing a Biometric Device
- Installing a Touch Screen
- Installing a Sound Card
- Installing a Video Capture Card
- Troubleshooting Input and Multimedia Devices
- Troubleshooting Keyboards
- Troubleshooting Mice and Pointing Devices
- Troubleshooting Touch Screen
- Troubleshooting Sound Card
- Troubleshooting SCSI Devices
- Troubleshooting I/O Ports
- Troubleshooting USB Ports and Devices
- Troubleshooting IEEE 1394 Ports and Devices
- Troubleshooting Parallel (LPT) Ports and Devices
- Troubleshooting Serial Ports and Devices
- Maintaining Input Devices
- Maintaining Mice and Pointing Devices
- Maintaining Keyboards.
- Chapter 8 Video Displays and Graphics Cards
- Do I Know This Already?" Quiz
- Video (Graphics) Card Types
- Video Card Cooling
- Installing a Video Card
- BIOS Configuration
- Video Card Physical and Driver Installation
- Display Types
- CRT Monitor
- LCD Monitor
- Data Projector
- Video Connector Types
- VGA
- DVI
- HDMI
- Component/RGB
- S-Video
- Composite
- Display Settings
- Resolution
- Color Quality (Color Depth)
- Refresh Rates
- Installing a Monitor
- Troubleshooting Displays and Video Cards
- Troubleshooting Picture Quality Problems with OSD
- Using Advanced Display Properties for Troubleshooting
- Troubleshooting Video Hardware
- Preventative Maintenance for Displays
- Chapter 9 Laptops and Portable Devices
- Do I Know This Already?" Quiz
- Fundamental Features of Laptops and Portable Devices
- Memory
- Storage Devices
- Peripherals
- Expansion Slots
- Communications Connections
- LCD Screen Technologies
- Input Devices
- Power Management Issues
- Power Sources
- Configuring Power Management
- ACPI
- Suspend, Standby, and Hibernate Modes
- Applications for Portable and Laptop Hardware
- Using Communications Connections
- Working with Power Sources
- Working with Display Subsystem Components
- Safe Removal of PC Cards
- Safe Removal of ExpressCards
- Safe Removal of Laptop-Specific Hardware
- Safe Removal of Batteries
- Safe Removal and Installation of Mini-PCI Cards
- Safe Removal and Installation of Hard Disk Drives
- Safe Removal of Optical Drives
- Safe Removal and Installation of Memory
- Safe Removal of LCD Panels
- Safe Removal and Replacement of Pointing Devices
- Portable and Laptop Diagnostics
- Power Troubleshooting
- Display Troubleshooting
- Other Components
- Preventative Maintenance for Laptops and Portable Devices
- Cooling Devices
- Display Screens.
- Suitable Operating Environments
- Storage Methods
- Transportation and Shipping
- Chapter 10 Security
- Do I Know This Already?" Quiz
- Security Fundamentals
- Secure and Insecure File Systems
- Authentication Technologies
- Protection Against Viruses and Malware
- Software Firewalls
- Hardware Recycling and Deconstruction
- Securing Wireless Networks
- WEP and WPA Encryption
- Access Point Configuration for Maximum Security
- Data and Physical Security
- Data Access Local Security Policy
- Encryption Technologies
- Backups
- Data Migration
- Data and Data Remnant Removal
- Password Management
- Locking a Workstation
- Incident Reporting
- Social Engineering
- Access Control Purposes and Principles
- Operating System Access Control
- Components
- Restricted Spaces
- Auditing and Event Logging
- Installing, Configuring, and Troubleshooting Security Features
- BIOS Security Features
- Software Firewalls
- Wireless Client Configuration
- Unused Wireless Connections
- File Systems (Converting From FAT32 To NTFS)
- Malicious Software Protection
- Chapter 11 Printers
- Do I Know This Already?" Quiz
- Printing Fundamentals
- Laser and LED Printers
- Inkjet Printers
- Thermal Printers
- Impact Printers
- Printer and Scanner Control
- Drivers
- Firmware
- Print Processes
- Laser Print Process
- Inkjet Print Process
- Thermal Print Processes
- Impact Print Process
- Interface Types
- Adding Bluetooth Support
- Adding Ethernet Support
- Adding 802.11Wireless Ethernet (WLAN) Support
- Adding Infrared Support
- Printer Installation
- Connecting the Device
- Verifying Device Compatibility with Operating System and Applications
- Installing Device Drivers
- Calibrating the Device
- Configuring Options and Device Settings
- Educating the User About Basic Functionality
- Optimizing Printer Performance.
- Tray Switching.