1. Describe the basic telecommunications system?
A telecommunications system makes use of hardware and software in order to transmit information from one location to another. Such a system can transmit text, data, graphics, voice, documents, or full-motion videos. A telecommunication system can use either analog or digital signals.
Analog signals are continuous waves which transmit information by altering their characteristics.
Digital signals are discrete pulses which makes use of the binary system. This is when bits are used to portray zeros and one, which represents a series of offs and ons. For example a fax machine uses these signals.
A telecommunications system makes use of hardware and software in order to transmit information from one location to another. Such a system can transmit text, data, graphics, voice, documents, or full-motion videos. A telecommunication system can use either analog or digital signals.
Analog signals are continuous waves which transmit information by altering their characteristics.
Digital signals are discrete pulses which makes use of the binary system. This is when bits are used to portray zeros and one, which represents a series of offs and ons. For example a fax machine uses these signals.
2. Compare and contrast the main wired communications channels ? (Ethernet & Fibre Optic)
Ethernet is a computer networking technology used for Local Area Networks. It uses a number of wiring and signaling standards to connect computers. In contrast a Fibre optic cable is made of glass fibres which is surrounded and supported by a cladding. The cable uses light pulses to carry information, which therefore travels at light speed. It has a very high bandwidth. Fibre optics can be used to transmit information from one LAN to another, using a Fibre optic to Ethernet converter, like the one shown below.
Compliments of Direct Industry, at http://www.directindustry.com/prod/korenix-technologies/industrial-ethernet-to-fiber-optic-converter-switch-29418-360459.html
3. What are the main business reasons for using networks?
– Networks enable instantaneous communication
– Networks enable the instantaneous transfer of data
o All with little ongoing costs
4. What is the difference between LANs and WANs?
The main difference between the two is the geographical region which they cover. A Local Area Network (LAN) connects two or more devices in a limited geographical region. For example in the same building. Conversely Wide Area Networks (WANs) cover large geographical areas, and usually connect multiple LANs.
5. What is a network protocol?
A network protocol is a system of computing devices, or “nodes” of the network that are connected to the same network access. They share this network to transmit and receive data.
6. Describe TCP/IP protocol
Transmission Control Protocol/Internet Protocol (TCP/IP) is a procedure which uses file-transfer, and packet switching to send large files on information with the assurance that the data will arrive in uncorrupted form. It is the communications protocol of the Internet, and is the reason why accurate information can be transferred on the Internet.
Transmission Control Protocol/Internet Protocol (TCP/IP) is a procedure which uses file-transfer, and packet switching to send large files on information with the assurance that the data will arrive in uncorrupted form. It is the communications protocol of the Internet, and is the reason why accurate information can be transferred on the Internet.
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