Flashcards
IT - The Online World
Flashcards do conjunto (13)
- 1What is a server?Is a computer dedicated to providing some specific service for other computers on the network. Example: file, video or print servers.
- 2What is a router?A piece of hardware that connects two or more networks in relation to the internet, data from the ISP is sent into the network and the router then directs the data packets to the correct destinations.
- 3What is Online Advertising?a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers. It includes email marketing, search engine marketing and social media marketing
- 4What is E-Commerce?E-Commerce is a term for any type of business, or commercial transaction, that involves the transfer of information across the Internet
- 5What is Netiquette?It means respecting other users’ views and displaying common courtesy when posting your views to online discussion groups.
- 6What is Online Data Storage?Data storage is another type of online service. Many organisations are providing facilities for you to store and back up your data on their computers and to make files available to share with others
- 7What are compressed files?Files may be extremely large, which can cause problems with transmission (delivery) in terms of speed and network usages. To reduce this problem files have to be compressed before transmission and then expanded after transmission. A common method of doing this is to convert them to zip files
- 8Bus NetworkIn a bus network all the workstations, servers and printers are joined to one cable (the bus). At each end of the cable a terminator is fitted to stop signals reflecting back down the bus.
- 9Ring NetworkIn a ring network each device (workstation, server, printer) is connected to two other devices, this forms a ring for the signals to travel around. Each packet of data on the network travels in one direction and each device receives each packet in turn until the destination device receives it
- 10Star NetworkIn a star network each device on the network has its own cable that connects to a switch or hub. A hub sends every packet of data to every device, whereas a switch only sends a packet of data to the destination device
- 11What is Bandwidth?Bandwidth is the measure of capacity of a communications channel. It measures the amount of data which can be uploaded or downloaded in a specific measure of time. It’s measured in ‘hertz’ or cycles per second
- 12VLEA virtual learning environment or VLE is an online education platform
- 13WAN & LANWAN: Wide Area Network
LAN: Local Area Network