One way data communication.
http://en.wikipedia.org/wiki/Simplex_communication
simplex half-duplex duplex
half-duplex communication of a data transmission method
Data in a Simplex transmission is always one way. Simplex transmission are not often used because it is not possible to send back error or control signals to the transmit end. Simplex Transmission: Transmission in one direction only. Also referred to as half-duplex transmission
the three types of data flow are: simplex,half duplex and full duplex
Data can be transferred in 3 different modes, these 3 modes are equally popular and used in common everyday situations. •Simplex If data can only be transferred in a single direction (one way) it is known as simplex. Television transmission is an example of Simplex transmission, here data can be transferred only to a television but no data can be transferred in the opposite direction. •Duplex When data maybe transferred in two directions simultaneously it is known as Duplex, a simple telephone conversation would be an example, while we usually don't talk simultaneously a telephone provides that 'duplex' functionality. •Half-Duplex In this mode of transmission as well, data maybe transmitted in both directions, however it cannot be done simultaneously. A Walkie Talkie would be an example of this mode of transmission. The different modes are implemented based on their requirements, for example in Simplex transmission, two way transmission is not required in television transmission thus Simplex is used.
The direction of the data flow can be described as: 1. Simplex 2. Half duplex 3. Full duplex 1. Simplex:- In Simplex data flows in only one direction on the data communication line (medium). Examples are radio and television broadcasts. They go from the TV station to your home television 2. Half duplex:-In Half-Duplex data flows in both directions but only one direction at a time on the data communication line. For example, a conversation on walkie-talkies is a half-duplex data flow 3. Full-Duplex: In full duplex data flows in both directions simultaneously. Modems are configured to flow data in both directions
Data transmission in one direction only (simplex)No errors take place on the physical channelThe sender/receiver can generate/consume an infinite amount of dataAlways ready for sending/receiving
what is difference between regular simplex method and dual simplex method
Simplex communication Unidirectional transmission.
Simplex method used for maximization, where dual simplex used for minimization.
1. Simplex 2. Half Duplex 3. Full Duplex
Hemistola simplex was created in 1899.