Flashcards
Sem título
Flashcards do conjunto (14)
- 1Different types of data?Audio, Video, Images, Text, Monitoring signals.
- 2Define the term data?Any kind of information that has been formatted in a specific way. Different types of data include audio, video, images and monitoring signals, as well as text.
- 3Define the term "devices and componants"?Used as a generic term to mean computers, peripheral hardware, mobile telephones, manufacturing plant, environment monitors and many other things.
- 4define the term "peripheral"?Any device, such as a printer, attached to a computer to expand its functionality.
- 5what does VoIP mean?VoIP is a group of internet protocols which provide a means of sending voice and multimedia communication over the internet rather than by public telephone networks.
- 6what hardware is needed to set up a VOIP?Any computer system which has microphone input, speaker or headphone output and a broadband connection can be used to transmit and receive voice communication using this system.
- 7give 2 examples of where VOIP might be used?1. Communicating with family members in different countries.
2. Communicating with business links in and out of the country. - 8Define "Codec"?A device or program used to encode or decode data
- 9Define wireless network?Wireless networks are another means by which data can be exchanged between a computer and a network, including the internet. A wireless network is any network servicing computers or other devices (e.g. mobile phones), in which the connections do not use cables of any kind.
- 10define UTP/STP?Unshielded twisted pair (UTP) cables are basic pairs of cables twisted together. Shielded twisted pair (STP) cables are similar but have a foil shielding.
- 11define coaxial?Solid wire core separated from a copper-braided outer cable by a plastic insulation sheath. The inner cable transmits the data and the outer cable connects to earth.
- 12Define Infrared?Short range data transmissions using infrared light. This is the same technology as is used in TV handsets.
- 13Define Microwave?Short wavelength radio transmissions working at very high frequencies.
- 14Define Satellite?Data is transmitted from Earth to a satellite, which relays it to the relevant receiving station back on Earth.
Informações
- Descrição
- FlashCards sobre Sem título, criado por kenndyb14 em 05-12-2014.
- Criado por
- kenndyb14
- Visualizações
- 0
- Avaliação