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Work in groups. One person chooses a type of computer, the other ask

Possible uses. | B. Look at the text again and discuss these questions. | Compare your answers with other students. | Look at the statements (1-7) and correct the ones which are wrong. | Quality costs level | Technical details | Optical disks and drives | Read the text again and summarize in the table the most relevant information. | Read the text and find definitions of these items. | About your daily routine. |


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Questions trying to find out what type it is. Finally describe each sort of

Computer.

 

Language work: Comparison

Study this comparison of three types of computer.

Mainframes Minicomputers Microcomputers

 

Size +++ ++ +

Power +++ ++ +

Cost +++ ++ +

 

We compare things using adjectives in two ways.

1 We can compare one type of computer with another.

Minicomputers are bigger than microcomputers.

Mainframes are more expensive than microcomputers.

For negative comparisons, we can say:

Microcomputers are not as big as minicomputers.

Microcomputers are not as powerful as mainframes.

 

2 We can compare mainframes to all other types of computer.

Mainframes are the biggest computers.

Mainframes are the most powerful computers.

Mainframes are the most expensive computers.

 

With short adjectives (big, small, fast), we add -er and -est (fast er, fast est).

With longer adjectives (powerful, expensive), we use more/less and

the most/the least before the adjective (more powerful, the most powerful).

Remember these two exceptions:

good – better – the best bad – worse – the worst


 

Choose the correct adjective. Then fill in the gaps with the correct form of the

Adjective.

1. light/heavy Laptops are (1) ______ than desktop computers, but (2) ______ than

notebooks.

2. large/small The mainframe is the (3) ______ type of computer. A minicomputer is

(4) ______ than a microcomputer.

3. common/good Personal computers are (5) ______ than mainframes but

mainframes are (6) ______ than personal computers at processing very large

amounts of data.

4. powerful/expensive Minicomputers are (7) ______ than mainframes but they are

also (8) ______.

5. fast/cheap New computers are (9) ______ and sometimes (10) ______ than older

machines.

6. powerful/expensive Laptops are often (11) ______ than PCs but they are not as

(12) ______.

 

Put the words in brackets into the correct form to make an accurate description

Of sizes of computers.

There are different types of computer. The (large) 1 ______ and (powerful)

2 ______ are mainframe computers. Minicomputers are (small) 3______ than

mainframes but are still very powerful. Microcomputers are small enough to sit on a

desk. They are the (common) 4 ______ type of computer. They are usually (powerful)

5 ______ than minicomputers.

Portable computers are (small) 6 ______ than desktops. The (large) 7 ______

portable is a laptop. (Small) 8 ______ portables, about the size of a piece of writing

paper, are called notebook computers. Subnotebooks are (small) 9 ______ than

notebooks. You can hold the (small) 10 ______ computers in one hand. They are

called handheld computers or palmtop computers.

 

 

Unit III. Basic hardware

 


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