Flashcards
The internet
Flashcards do conjunto (17)
- 1What is the internet?The internet is a network of networks that connects computers worldwide via a huge set of telecommunications links.
- 2What did the internet begin as?ARPAnet
- 3When did ARPAnet split into 2 parts?1983
- 4What were the 2 parts?MILnet
ARPAnet - 5What happened in 1986?Networking and computer technology was successful.
- 6When did the nature of the internet change?In 1992
- 7What changed in 1992?Internet access is available to the general public for the first time.
- 8Who owns the internet?The internet does not have a central authority but its consisted of independently maintained and administered networks with their own protocol
- 9NBThe internet backbone, through which internet traffic flows, is owned by private companies
- 10Advantages of the internetVast volumes of information are available on virtually any topic.
Information can be updated regularly.
Much of the information is free.
It allows people to telecommute.
It is convenient for many common chores
It is easily accessible. - 11Disadvantages of the internet.Lots of incorrect information is available.
It can ve difficult to find what you need because of the large volume of information available.
Computer viruses can be easily downloaded without the user realizing.
There are lots of undesireable websites on the internet such as pornography.
The security of computers and WAN/LAN systems connected to the internet may be at risk from hackers. - 12What do you need to connect to the internet?1.Computer hardware which is a personal computer and a modem.
2.Communication link which is a phone line or cable or satellite dish.
3.An internet service provider (ISP)
4.Computer software which is the facility to implement IP and an internet browser. - 13What is internet protocol (IP)?A set of rules governing the format of data sent over the internet or their network.
- 14What is a modem?A modem is a device used to convert the digital data emitted from the conputer into analogue data that can be transmitted over a telephobe line.
- 15What happens when the data gets to the other end of the line?A modem converts the analogue data back into digital data for the computer at that end of the line to process.
- 16NbThe data transmitted can be sound, pictures, video or text.
- 17What can modern modems also perform?Automatic dialing which is s a modem can dial a phone number.
Automatic answering of remote computers which is a modem can answer an incoming call.
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- FlashCards sobre The internet, criado por Kamarea Lloyd em 10-10-2019.
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- Kamarea Lloyd
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