After completing A+ 2001 Hardware & Operating System Certification: Modems, the user should be able to:
 | Describe modem components and operation |
| Identify the Xmodem, Ymodem, and Zmodem communication protocols and their parameters |
| Describe serial interfaces and the development of the UART |
| Use basic AT commands to operate modems |
| Troubleshoot modem software and hardware problems, including COM port and IRQ conflicts |
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Introduction to Modems
| Modem components |
| Understanding how modems work |
Communication Protocols
| Understanding protocols |
| Control-code-oriented protocols |
| Character type and character framing |
The Serial Interface
| The UART |
| COM port settings |
Communicating with the Modem
| Using communication software |
| The AT Command Set |
| Modem settings |
Troubleshooting Modems
| Identifying COM port conflicts |
| Performing modem software checks |
| Checking modem settings in Windows |
| Performing modem hardware checks |
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This course has the following features:
| Exercises that allow users to practice course skills |
| A file containing the text of the exercises |
| Activities that allow users to apply concepts in an interactive questioning environment |
| A glossary |
| A Skill Assessment |
|
Experience working with computer hardware and software.
| A+ 2001 Hardware & Operating System Certification: Computer Introduction (APLU01) |
| A+ 2001 Hardware & Operating System Certification: The System Board (APLU02) |
| A+ 2001 Hardware & Operating System Certification: Connecting Peripherals (APLU03) |
| A+ 2001 Hardware & Operating System Certification: Operating Systems (APLU04) |
| A+ 2001 Hardware & Operating System Certification: MS-DOS (APLU05) |
| A+ 2001 Hardware & Operating System Certification: Windows 9x and 2000 (APLU06) |
| A+ 2001 Hardware & Operating System Certification: Disk Drives (APLU07) |
| A+ 2001 Hardware & Operating System Certification: Monitors (APLU08) |
|
| A+ 2001 Hardware & Operating System Certification: Printers (APLU10) |
| A+ 2001 Hardware & Operating System Certification: Networks (APLU11) |
| A+ 2001 Hardware & Operating System Certification: Troubleshooting (APLU12) |
| A+ 2001 Hardware & Operating System Certification: Maintenance Tasks (APLU13) |
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Intel®, Pentium®, Pentium II®, Pentium III® MMX®, Celeron® are registered trademarks of Intel Corporation.
Cyrix® is a registered trademark of Cyrix Corporation.
AMD®, Athlon®, Duron®, K5®, and K6® are registered trademarks of Advanced Micro Devices, Inc.
FireWire® is a registered trademark of Apple Computer, Inc.
Microsoft® is a registered trademark of Microsoft Corporation.
Windows 95®, Windows 98®, Windows 2000®, and Windows NT® are trademarks of Microsoft Corporation.
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Our online training material lets you:
TEST your skills
LIST the areas where you need additional training
Take lessons that TEACH SKILLS to improve these areas
Tests your skills again
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