a. Computers
b. Digital Computers
c. Types of Computers
Exercise 4. Arrange computers according to their capacity.
a. Desktop computer
b. Server
c. Mainframe
d. Netbook
e. Notebook
f. Supercomputer
g. Embedded computer
Exercise 5. Match the words from the box with the pictures.
| Wearable computer Desktop computer Tablet Laptop Netbook Server Supercomputer PDA Wearable computer Embedded computer |
1. ________________ 2______________________
3 ____________________ 4 _________________________
5 _____________________ 6_______________________
7 _________________________ 8 _______________________
9 ________________________ 10 _________________________
Exercise 6. Fill in the table paying attention to the types of computer classification.
| Microcomputers, Digital, Wearable computer, Desktop computer, |
Operational principle
| Analogue |
| Hybrid |
Size and processing power
| Mainframe |
| Minicomputers |
Use
| Laptop |
| Netbook |
| PDA |
| Server |
| Supercomputer |
| Embedded computer |
| Tablet |
Exercise 7. Translate the following text in a written form. Use a dictionary if necessary.
A desktop computer is a small machine that has a screen (which is not part of the computer). Most people keep them on top of a desk that is why they are called desktop computers. Similar in operation to desktop computers, laptop computers are miniaturized and optimized for mobile use. Laptops run on a single battery or an external adapter that charges the computer batteries. They are enabled with an inbuilt keyboard, touch pad acting as a mouse and a liquid crystal display. Both laptops and desktops are called personal computers, because one person at a time uses them for things like playing music, surfing the web, or playing video games.
There are bigger computers that many people at a time can use. They are mainframes. Large organizations use mainframes for highly critical applications such as bulk data processing. Most of the mainframe computers have capacities to host multiple operating systems and operate as a number of virtual machines. They can substitute for several small servers.
There is another type of computer, called an embedded computer. An embedded computer is a computer that does one thing and one thing only, and usually does it very well. For example, an alarm clock is an embedded computer: it tells the time. Embedded computers cannot be programmed. Some mobile phones, automatic teller machines, microwave ovens, CD players and cars are examples of embedded computers.
Exercise 8. Discuss the following items in small groups.
1. What computer is the best? Your friend decided to buy a computer. What advice can you give him? Why?
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2. Interview between a market researcher and visitors to a computer exhibition.
Exercise 9. Which computer classification would you suggest? Why? Write down an essay of 120-150 words on this topic.
