Technology Guide 4. Telecommunications. Hardware Communications media Communications networks Communications processors. Communications software Data communications providers Communication protocols Communications applications. Telecommunication System.
Data communications providers
Communications applicationsTelecommunication System
Atelecommunication system is a collection of compatible hardware and software arranged to communicate information from one location to another. The major components include;
Digital signals are discrete on-off pulses that convey information in terms of 1s and 0s, just like the central processing unit in computers.Electronic Signals
Telecommunications media can carry two basic types of signals;
Personal communication service (PCS) uses lower-power, higher frequency radio waves than cellular technology. As a result, PCS cells are smaller, more numerous and closer together.
Personal digital assistants (PDAs) are small, pen-based, hand-held computers capable of digital communications transmission.
Bluetoothis a relatively new technology that allows wireless communication between mobile phones, laptops, and other portable devices.Wireless Technologies
The major types of standards are;
Layer 1:Physical layerLayer 5: Session layer
Layer 2: Data link layerLayer 6: Presentation layer
Layer 3: Network layerLayer 7: Application layer
Layer 4: Transport layer
There are five models of client/server implementation;