After completing A+ 2001 Hardware and 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

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

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 and Operating System Certification: Computer Introduction (APLU01)
	A+ 2001 Hardware and Operating System Certification: The System Board (APLU02)
	A+ 2001 Hardware and Operating System Certification: Connecting Peripherals (APLU03)
	A+ 2001 Hardware and Operating System Certification: Operating Systems (APLU04)
	A+ 2001 Hardware and Operating System Certification: MS-DOS (APLU05)
	A+ 2001 Hardware and Operating System Certification: Windows 9x and 2000 (APLU06)
	A+ 2001 Hardware and Operating System Certification: Disk Drives (APLU07)
	A+ 2001 Hardware and Operating System Certification: Monitors (APLU08)

	A+ 2001 Hardware and Operating System Certification: Printers (APLU10)
	A+ 2001 Hardware and Operating System Certification: Networks (APLU11)
	A+ 2001 Hardware and Operating System Certification: Troubleshooting (APLU12)
	A+ 2001 Hardware and Operating System Certification: Maintenance Tasks (APLU13)

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.