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An introduction to communications - Answers

Q1. A standalone computer is one that isn't connected to other computers.
Q2. An advantage of a standalone computer is that they are relatively easy to manage, load software up on and deal with any problems.
Q3. Two disadvantages of standalone computers are that they can't communicate with other computers and can't share resources like printers, software and files.
Q4. A network is more than one computer connected together.
Q5. A network card gives a computer a unique address and allows you to connect the computer to a network.
Q6. Another name for a network card is a network adapter.
Q7. A switch provides sockets so you can connect computers together on a network and directs messages on the network  to the correct place.
Q8. A network operating system makes sure that only authorised users use the network y setting up user accounts with logins and passwords.
Q9. A modem router allows you to connect a computer system to the phone line so that you can get an Internet connection.
Q10. Networks are more complex to run than standalone computers, and you need to buy extra hardware and software for them.

Extension tasks
a) ISP stands for Internet service Provider.
b) It costs roughly £20 - £30 on average for a household to have an account each month to access the Internet, including a phone line rental.
c) The kind of criteria might you use to select an ISP are initial cost and special offers, total cost per year, freebies e.g. a free wireless modem router, quality of support e.g. email only or phone support, reviews online about the quality of the service, quality of help etc.

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