Use Present Perfect Tense converting the verb from the giving forms.
Практичне заняття № 3
Тема: «Computer and its parts»
Read the text. Translate.
What is a computer?
Computers are electronic machines which can accept data in a certain form, process the data and give the results of the processing in a specified format as information.
Three basic steps are involved in the process: First, data is fed into the computer’s memory. Then, the program is run, the computer performs set of instructions and processes the data. Finally, you can see the results (the output) on the screen or in printed form. Information in the form of data and programs is known as software, and the electronic and mechanical parts that make up a computer system are called hardware. A standard computer system consists of three main sections: the Central Processing Unit (CPU), the main memory and the peripherals.
Perhaps the most influential component is the Central Processing Unit. Its function is to execute program instructions and coordinate the activities of all the other units. In a way, it is the ‘brain’ of the computer. The main memory holds the instructions and data which are currently being processed by the CPU. The peripherals are the physical units attached to the computer. They include storage devices and input/output devices.
Storage devices (floppy or hard disks) provide a permanent storage of both data and programs. Disk drives are used to handle one ormore floppy disks. Input devices enable data to go into the computer’s memory. The most common input devices are the mouse and the keyboard. Output devices enable us to extract the finished product from the system. For example, the computer shows the output on the monitor or prints the results onto paper by means of a printer.
On the rear panel of the computer there are several ports into which we can plug a wide range of peripherals – modems, fax machines, optical drives and scanners.
These are the main physical units of a computer system, generally known as the configuration.
2. Match the terms in the box with the appropriate explanation or definition below.
| Software peripheral devices MONITOR floppy disk
HARDWARE INPUT port OUTPUT Central Processing Unit |
1 The brain of the computer.
2 Physical parts that make up a computer system.
3 Programs which can be used on a particular computer system.
4 The information which is presented to the computer.
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5 Results produced by a computer.
6 Hardware equipment attached to the CPU.
7 Visual display unit.
8 Small device used to store information. Same as ‘diskette’.
9 Any socket or channel in a computer system into which an input/output device v may be connected.
Read these slogans or quotations, and say what computer element they refer to.
1a) point and click here for power.’
b) ‘Obeys every impulse as if it were an extension of your hand.’ __________________
2a) ‘Displays your ideas with perfect brilliance.’
b) ‘See the difference - sharp images and a fantastic range of colours.’. _______________
3a) ‘I love this drive. It’s quiet and fast.’
b) ‘With this it’s easy to back up your data before it’s too late.’ _________________
4a) ‘Power and speed on the inside.’
b) ‘Let your computer’s brain do the work.’ __________________
5a) ‘. a big impact on the production of text and graphics.’
b) ‘Your choice: a laser powerhouse.’ ___________________
6a) ‘Your fingers will hardly know they’re working.’
b)Choose a full 105-key layout, and type with efficiency.’_________________________
4. Answer the questions:
- What are the main computer parts?
- What is the function of CPU?
- What does software consist of?
- What is the difference between input and output devices?
- How does main memory work?
- Where is disk drive situated?
- What input/output devices do you know?
- What types of ports can be used and with what purposes?
- Which of the parts are essential?
- Which parts are optional?
What do you think: what will be the next future invention in the computer system equipment?
GRAMMAR
Present Perfect Tense
Put the verbs into the correct form (present perfect simple).
1. I __________ (not / work) today.
2. We __________ (buy) a new lamp.
3. We ____________ (not / plan) our holiday yet.
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4. Where ___________ (be / you) ?
5. He ______________ (write) five letters.
6. She ____________ (not / see) him for a long time.
7. ___________ (be / you) at school?
8. School ____________ (not / start) yet.
9. _____________ (speak / he) to his boss?
10. No, he __________ (have / not) the time yet.
Use Present Perfect Tense converting the verb from the giving forms.
1. The pupils are writing a dictation. _The pupils have written a dictation
2. My friend is helping me to solve a difficult problem ____________________________
3. I am learning a poem. ____________________________
4. She is telling them an interesting story. ____________________________
5. Kate is sweeping the floor. ____________________________
6. The waiter is putting a bottle of lemonade in front of him. ____________________________
7. I am eating my breakfast. ____________________________
8. We are drinking water. ____________________________
9. He is bringing them some meat and vegetables. ____________________________
10. You are putting the dishes on the table. ____________________________
11. They are having tea. ____________________________
12. She is taking the dirty plates from the table. ____________________________
13. The children are putting on their coats. ____________________________
14. Susan is making a new dress for her birthday party. ____________________________
15. She is opening a box of chocolates. ____________________________
16. I am buying milk for milk shakes. ____________________________
17. James is ordering a bottle of apple juice. ____________________________
18. We are looking for more CDs with good music. ____________________________
19. You are recording your favourite film on his video recorder. ________________________
20. I am translatinga difficult article from German into Russian________________________
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