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The table gives some prefixes commonly used in computer science. Study them and explain the expressions below.
· the decimal system
· the hexadecimal system
· multi-user configuration
· bidimensional chessboard
· a monochrome computer
· a CPU with 64 MB of RAM
· a document of 3 kilobytes
33 Read the descriptions of the four people and the four computers below. With a partner, choose the most suitable computer for each person. Give reasons for your choices.
1 Daniel is a history student. He needs a computer to write essays, assignments and letters.
2 Sarah is the manager of an advertising company. She needs a powerful system which will work with optical disks and multimedia applications, integrating text and pictures with animation and voice annotations. Digitized images and sound occupy a lot of disk space.
3 Andy is a CAD engineer. His job involves computer-aided design, simulations and three-dimensional modelling. These applications require a lot of memory and a large drive.
4 Tanya is a sales representative. She needs a lightweight machine with which she can process orders and communicate with head office while she is on the road.
34 Write about the ideal computer system you would like to have. Consider the features and the options. Think what you are going to use them for. Write about 150-200 words.
35 Read the poem by a computer addict. The author calls himself “a computer snail, an internet parasite, an IT monster”. Match them with the three verses of the poem.
What am I?
I call myself _____________________
Sitting for hours, totally engaged
In the world of the plastic box, filled with silicon chips
Separated from reality
By a screen
Sometimes visible, touchable, breakable,
Sometimes fusible, volatile, illusive.
I am ___________________________
Devouring the information juice
Jumping from one page to another
Tracking the latest news, gears and even gossip.
I am safe inside my anonymous coat
Or sometimes seek shelter in nickname loads
My existence, untraceable, undeniable.
I become _____________________________
Convicted of addiction and cyber malevolence
Of health deterioration and privacy violation
A list of concerns, denials, criticism and old folks' grievances.
How malignant a benign cancer!
How threatening a vulnerable creature!
My future, glorious or gloomy? What am I?
Check that you know these words
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