Exercises. 4. Find the equivalents: 1

4. Find the equivalents:

5. Memorize the following definitions:

1. Memory unit is a part of a computer which stores information. 2. The memory access time is the time required to transmit one computer word out of the memory to where it will be used. 3. The capacity of a computer memory is the quantity of data that the memory unit can hold.

6. Answer the following questions:

1. What is the general purpose of the memory or storage unit? 2. What information is stored in the computer memory? 3. Where is information stored inside the computer? 4. What is the memory access time? 5. What ways of memorizing words in a computer do you know? 6. What has led to the creation of memories on LSI circuits? 7. What is the latest achievement of modern electronics? 8. What memories are used in microcomputers?

7. What do you call a unit which:

1) accepts information from outside a computer? 2) memorizes information to be operated on? 3) brings information out of the computer? 4) is able to take in information at the very high speed from a computer and then to release it at the proper speed for the peripheral equipment?

8. Translate the following sentences paying attention to the words in bold type:

a) 1. Every student must know that reasonable operations are logical and mathematical operations. 2. His experiment is simpler than that of yours. 3. The capabilities of a digital computer are greater than those of an analog computer. 4. It is clear that these diagrams are like those shown in Fig. 4.

b) 1. As science progresses the difference between man-made systems and natural systems may be reduced infinitely. 2. As you know information is a set of marks that have meaning. 3. As new operations can be composed of sub-operations, no new programming is needed. 4. The development of computers as machines for handling information has gone a long way. 5. As it is known, program is a set of instructions.

c) 1. One of these problems has been solved by a computer. 2. By means of a computer one can easily solve any problem. 3. There is only one solution, the one stated above, when n and m are equal. 4. One should remember all these rules, while solving a problem.

9. Translate the following sentences paying attention to the form and function of the Participle:

1. The input unit consists of some devices using different means. 2. Performing addition the computer must have two numbers to be added. 3. When pressing the keys the operator makes the adding machine operate. 4. The operator pressing the keys makes the adding machine operate. 5. Adevice invented by the German mathematician Leibnitz could control automatically the amount of additions to be performed by a given digit. 6. Logical operations performed by a computer are comparing, selecting, sorting, and determining. 7. Discussing the advantages of the new memory unit the professor gave the students all the necessary explanations. 8. Having punched holes in a card the operator put it into the computer. 9. When passed through the reading equipment the characters are read in a way similar to a way used for a magnetic tape. 10. The density of memorizing elements in MOS memory is very high.

10. Translate the following sentences paying attention to the Absolute Participle Construction:

1. The first automatic computers of the 1940's not being very reliable, scientists went on improving them. 2. Specialists use computers widely, the latter helping in performing computations at great speeds. 3. Personal computers being used for many purposes, scientists go on improving their characteristics. 4. The computer SM-100 is used in industrial processes and scientific researches, its main function being to carry out reasonable operations with numbers and to calculate complex problems. 5. With the current on, the computer automatically begins operating.

11. Find the sentences in which the Absolute Participle Construction is used:

1. Register R storing the code for number 3, the computer will perform the operation 3 times. 2. When storing the code for number 3 register R makes the computer perform the operation 3 times. 3. The computer performs the operation 3 times, the code for number 3 being stored in one of the registers. 4. The register storing the code for number 3 is arranged in the computer's memory. 5. The code for number 3 being stored in register R, the operation will be performed by the computer 3 times.

12. Read Text В and make up questions on the text for your group mates to answer:

TEXT B