2. Complete the sentences using the information from the text.
a. Computers are multi-purpose …
b. Computers are found …
c. Advanced systems enable …
d. Medical expert systems can …
e. Computer systems are becoming …
f. Tiny computing devices control complex …
g. 'Computers on a chip' are used in …
h. Workers use handheld computing devices …
i. Today computers in …
3. Answer the questions.
a. Do computers have a fixed purpose?
b. What systems enable computers to be great people’s helpers?
c. Where can 'computers on a chip’ be used?
d. What do workers use handheld computing devices for?
e. What other fields are computers used?
4. Retell the text ‘Purposes of Computer’.
Task VI
1. Read and translate the text.
network – компьютерная сеть
local-area network (LAN) - локальная (вычислительная) сеть, ЛВС
wide-area network (WAN) = wide network - глобальная (вычислительная) сеть
campus-area network (CAN) – вычислительный центр кампуса
metropolitan-area network (MAN) - общегородская сеть (связи или ЭВМ)
home-area network (HAN) - домашняя сеть
radio waves – радиоволны
data network - сеть передачи данных (цифровая сеть, предназначенная для пересылки данных, в отличие от сети, предназначенной для пересылки речевых аналоговых сигналов)
Network
A network is a set of computers or computer systems connected to each other and can be used to send information or messages.
There are many types of computer networks. They are a local-area network (when computers are geographically close together, in the same building), a wide-area network (when computers are far from each other and they are connected with telephone lines or radio waves), a campus-area network (when computers are within a limited geographic area, such as a campus or military base), a metropolitan-area network (a data network designed for a town or city), and a home-area network (a network that connects a person’s digital devices).
A network enables computers and software to communicate and to share resources. Networks connected together form an internet. The connection of networks throughout the world is known as the Internet (note that a capital letter I is used) or, more simply, the Net.
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