After completing this course, the student should be able to:
 

	Describe the basic features and components of a teleprocessing network
	Identify the types and uses of hardware and software at sending and receiving ends of a teleprocessing network
	Describe the characteristics of the message transmitted from sender to receiver within a teleprocessing network
	Cite major historical events in the development of teleprocessing networks

Teleprocessing Overview
Presents an introduction to teleprocessing and communications systems.
 

	Definition of a teleprocessing system
	One example of a teleprocessing system
	The four components that must be present to have communications
	Three performance principles of communications systems
	Three fundamental functions of data communications
	Four uses of data communications systems

Hardware for Sending and Receiving
Discusses the types of terminals that can be used at sending or receiving ends of a data communications system.  Covers the use of various network components.
 

	Features of dumb and intelligent terminals
	Two types of general and special purpose terminals
	The purpose and use within a data communications network for concentrators, multi-drop lines, multiplexers, switching devices and front end processors

Software for Sending and Receiving
Discusses the three types of processing performed by the software at sending or receiving ends of a data communications system: control, conversion and editing.
 

	Explanation of this course's use of the categories communications interface and processing
	Definition and examples of three processing functions
	Nine steps required to effect a teleprocessing communication
	Three types of control processing software
	How control processing software fulfills Steps 1, 9, 6 and 7
	Three types of conversion processing software
	How conversion processing software fulfills Steps 2, 3 and 8
	Two types of editing processing software
	How edit processing software fulfills Steps 4 and 5

Transmission Channel
Discusses the four components of a transmission channel within a teleprocessing network: modems, lines, information flow and errors.
 

	The parts of the transmission channel
	The purpose and features of modems
	Five criteria to consider when selecting modems
	The purpose of lines
	Two components and three types of lines
	The use of two types of communications switches
	Four common combinations of lines and switches
	The features of the three characteristics of information flow: direction, mode and phase
	Attenuation, delay and phase types of distortion
	Impulse, static, crosstalk and echo types of noise

Message
Discusses the fourth and final component of a teleprocessing network.
 

	The data codes, data transmission structures and protocols that define the characteristics of the message component of a teleprocessing network
	The features, advantages and disadvantages to three data coding systems: Baudot, EBCDIC and ASCII
	Data error checking with parity bits, BCC and formulas
	The features, advantages and disadvantages to: 1) serial and parallel transmission and 2) asynchronous and synchronous protocol
	The purpose of protocols within a teleprocessing network
	Four protocol levels

Using the Information Network
Allows the student to practice using the services of typical informational network (INW).
 

	A practice session with a sample INW
	Six variables used by INW's to charge for their services
	Information on several time sharing services

Teleprocessing Networks
Presents a brief discussion of some of the more significant happenings in the development of teleprocessing networks as we know them today.
 

Milestones in the history of teleprocessing networks