to enhance — підвищувати, збільшувати

Digital computers

1.Remember the words:

storage — збереження

handling — обробка

to enhance — підвищувати, збільшувати

digital — цифровий

ability —здатність, можливість

to determine — визначати

voltage — напруга

discrete operation — дискретна дія

to perform — виконувати, здійснювати

defense — оборона, захист

to attain — досягати

amount of data — обсяг даних

except — за винятком, крім

processing unit — обчислювальний пристрій

2. Read and translate the text.

Everything that a digital computer does is based on one operation: the ability to determine; on or off. High voltage or low voltage or — in the case of numbers—0 or 1 or do-called binary code. The speed at which the computer performs this simple act is called computer speed. Computer speeds are measured in Hertz or cycles per second» A computer with a «clock speed» of 2000 MHz is a fairly representative microcomputer today. It is capable of executing 2000 million discrete operations per second. Nowadays microcomputers can perform from 800 to over 3000 million operations persecond and supercomputers used in research and defense applications attain speeds of many billions of cycles per second.

Digital computer speed and calculating power are further enhanced by the amount of data handled during each cycle.

Except two main types of computers, analog and digital there are eight generations of digital computers or processing units. The first generation was represented by processing unit Intel 8086. The second generation central processing unit was represented by processing unit Intel 80286, used in IBM PC AT 286. The third generation is Intel 80386. used in IBM PC AT 286. The third generation were used in computers IBM PC AT 486. There are also central processing units of the fifth generation, used in Intel Pentium 60 and Intel Pentium 66, central processing units of the sixth generation, used in computers Intel Pentium 75, 90, 100 and 133. Few years ago appeared central processing units of seventh and eighth generations. They are much more powerful and can perform from 2000 to over 3000 million operations per second.

3 Give English equivalents:

— здатність визначати

— висока напруга

— бінарний код

— виконувати дію

— швидкість комп'ютера

— вимірюється в герцах

— досягти швидкості

— обсяг даних

— обчислювальна потужність

— перше покоління цифрового комп'тера

4. Answer the questions:

1. What is the computer speed?

2. What speeds do modern computers have?

3. How many generations of digital computer are there?

4. What is the first generation processing unit?

5. Match the following computer terms with their definitions.

1. Browser	a) a software program for getting information from the World Wide Web.
2. Electronic Mail	b) the parts of your computer system disk, printer, modem, scanner, cards.
3. Hardware	c) sending and receiving of messages across a network
4. Internet	d) a file or files containing instructions
5. Server	e) is a super-network. It connects many smaller networks together.
6. Software	f) a computer program that provides information or services
7. Web Page	g) an interconnected set of hypertext documents in the Internet.
8. Web Site	h) a document on the World Wide Web
9. World Wide Web/WWW/	i) a collection of web pages having to do with a particular topic,
10. Database	j) a device that lets computers through telephone lines
11. Graphics	t) the pictures and symbols a computer program can produce
12. Modem	m) a program which allows you to store, look at or change a large amount of information

6. Look at the picture below and label the items using the words in the box.

Keyboard scanner printer socket central unit mouse mat screen monitor mouse cord floppy disk drive CD-ROM drive

7. Read and dramatize the dialogue. “Applying for a job”

- Good morning, sir.

+ good morning. Have a seat, please.

- My name is Denis Shchupko.

I have learned from the newspaper that you have a vacansy of a computer consultant.

+ Yes, our company is looking for candidates for the position of

computer consultant.

- I would like to have a part - time work as I am a student of Vinnytsya college of NUFT.

+ Do you have a recommendation letter from the college?

- Certainly, here you are.

+ "Denis Shchupko is a student at the Vinnytsya College of NUFT. He displays the following qualities: hard - working, disciplined, energetic, communicative."

All right, it is a good reference. I think we'll hire for the position.

- What will my obligations be? We use computers a lot.

+ You'll have to controll the work of some computers. The hours are

from 3 to seven every day. You'll start on 400 hrivnas a month.

Does it suit you?

- Oh, yes. I am grateful. Good-bye.

Дата добавления: 2015-09-29