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Introduction
Introduction
When participants within the information system have a need to transmit and receive data or information, the type of system required is a communication system. Communication systems support people who are working together, by enabling the exchange of data and information electronically. In this topic, the information processes of transmitting and receiving are featured, with the other processes considered when relevant because all information processes play a role in communication systems.
text taken from IPT Syllabus, section 9.3: Communication Systems introduction.
Topics covered
Topics covered
People can transmit and receive data and information through a communication system. There are five essential components to all communication systems: Data source, transmitter, transmission medium, receiver and destination. When participants in an information system need to transfer and receive data and information, communication systems are utilised. A good communication system has an accurate, dependable, and secure transmission medium, as well as a short communication latency. Protocols, handshaking, transmission speed, and error checking are all dependent on the communication system's information system.
examples of communications systems can include the likes:
Telecommunication systems- Telecommunication is the transmission of information over a long distance using electrical impulses or electromagnetic waves. The telephone network, radio broadcasting systems, computer networks, and the Internet are all examples of telecommunications systems.
Internet.
Public Switched Telephone network.
Intranet and Extranet.
Television.
TV Cable.
Transmission systems - In addition, a transmission system is the medium by which data is sent from one location to another. The internet, mobile networks, cordless cords, and other ubiquitous transmission systems that people use on a daily basis are examples.
Optical Communication Systems - A transmitter encodes a message into an optical signal, a channel transports the signal to its destination, and a receiver reproduces the message from the received optical signal in an optical communication system.
Radio Communication Systems - Information is sent over space utilising radio waves in radio communication systems. The information to be conveyed is transformed to a time-varying electrical signal called the modulation signal at the sending end by some sort of transducer.
Duplex Communication Systems - A duplex communication system is a point-to-point communication system that consists of two or more linked parties or equipment that can communicate in both directions.
Transmitter- encodes the data into a single signal that may be sent via a network.
Transmission Medium- a signal transmission channel, such as a cable, through which the signal is sent to its destination. During transmission, the signal may be altered or distorted.
Reciever- the receiver decrypts the signal and converts it to the original data or a close approximation of it.
Fibre optic cables are a prevalent mode of communication. They're just light-carrying cables. They're used to transmit data across the internet, and there are vast networks of fibre optics on the ocean floor. The signal is digital via these lines.
other information processes in communication systems can consist of:
decision support system- A decision support system (DSS) is a computerised programme that helps an organisation or business make decisions, make judgements, and plan courses of action. A DSS sifts through and analyses vast volumes of data, producing detailed information that can be utilised to solve issues and make decisions.
social information systems- Social information systems are computer systems that rely on social technology and open collaboration. The paper defines social information systems through categories and gives a framework for current and future research in this field of study.
process control system- Process control systems (PCS), also known as industrial control systems (ICS), are pieces of equipment used along the manufacturing line that test the process in a variety of ways and return data for monitoring and troubleshooting.
management information system- A management information system (MIS) is a computer system comprised of hardware and software that acts as the foundation for an organization's operations. An MIS collects data from numerous internet systems, analyses it, and reports it to help management make decisions.
intelligent system- Intelligent systems are highly developed machines that perceive and respond to their surroundings. Intelligent systems can take various shapes, from Roombas to facial recognition programmes to Amazon's personalised shopping recommendations.
enterprise systems- Enterprise systems are large-scale software packages that can track and control all of a company's complicated operations. These systems serve as a central command hub, assisting in the automation of the business and making reporting and decision making easier.
data warehouses- A data warehouse is a sort of data management system that enables and supports business intelligence (BI) activities, particularly analytics. Data warehouses are purely intended for query and analysis purposes, and they frequently hold vast amounts of historical data.
enterprise resource planning- ERP refers to a type of software used by businesses to manage day-to-day company activities such as accounting, procurement, project management, risk management and compliance, and supply chain operations.
Communications management entails the systematic planning, implementation, monitoring, and revision of all communication channels within and between organisations, as well as the organisation and dissemination of new communication directives related to an organisation, network, or communications technology.
In this activity, students set up and configure their own wireless network using a fairly standard router. To make the activity intertesting, the netowrk needs to be non-broadcasting, MAC-filtered and WPA2 encrypted.
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