Input Output Devices I

Course Number: 762

This course introduces many of the input/output devices that make up a typical computer system. It explores communication—the successful transmission of information between computers-at length. It discusses both the user/machine interface and the machine/machine interface, as well as the various network configurations. The course concludes with two "real-world" examples of how microprocessors are connected to I/O devices.

Recommended Contact Hours - 8

Chapter 1: Introduction to I/O Devices

Topics: Digital and analog devices; Interfaces; Keyboards; Mice; Digitizers; Displays; Printers; Plotters; Storage devices; Limit switches; Shaft encoders

Learning Objectives:

• State the function of input/output (I/O) devices.
• Contrast digital and analog I/O devices.
• Describe three different types of input devices that are used by operators for entering data and commands into a computer.
• Describe three different types of output display devices.
• Compare floppy disk and hard disk mass storage.
• Explain the difference between binary and Gray code.

Chapter 2: Communication Systems

Topics: Serial/parallel communication; Frequency and phase modulation; Half- and full-duplex operation; Local data systems; LANs and configurations

Learning Objectives:

• Describe the differences between serial and parallel communication.
• Explain how microcomputer systems communicate.
• Discuss two different kinds of modulation used in data communication.
• Define the term network as it is applied to microcomputer systems.
• Describe the components that make up a network.
• Identify several different LAN configurations.

Chapter 3: User/Machine Interface

Topics: Data transmission standards; Monitors, keyboards, and encoders; USART; Character generator; CRT; Graphics; Monitor accessories

Learning Objectives:

• Discuss ASCII code and the related data transmission standards.
• Identify and describe the main components of a display monitor system.
• Explain how information is displayed on a computer screen.
• Identify several accessories that can be used with a display monitor system.

Chapter 4: Networks

Topics: Distributed processing; LAN accessing techniques and topologies; Data packets; Broadband and baseband systems; Ethernet

Learning Objectives:

• Discuss the evolution of computer networks.
• Explain the term distributed processing.
• Describe the local area network (LAN) concept.
• Explain the differences between the two LAN accessing techniques, and between the two LAN topologies, discussed in this Lesson.

Chapter 5: Specific System Applications

Topics: Application I/O; Small-scale dedicated controller example; General-purpose business system example; System requirements; Software

Learning Objectives:

• Describe two methods used by microprocessors to access I/O devices.
• Discuss the different functions of a small-scale, dedicated microcomputer.
• List some of the functions of a general-purpose business microcomputer.
• Explain how hardware is selected for a small-scale, dedicated system.
• Identify some of the tasks that the software used with a typical general-purpose business microcomputer must be able to accomplish.