4. Find in (b) the Russian equivalents to the English words and word combinations in (a):

a) hence, for example, according to, by means of, i.e., etc., always, just, on the other hand, since, any, in its turn, sometimes, the same, while, in this way, instead (of), usually

b) то есть, например, всегда, только что, с другой стороны, так как, в свою очередь, иногда, тот же самый, любой, следовательно, и так далее, в то время как, таким образом, вместо, согласно, обычно, посредством

5. Arrange synonyms in pairs:

semiconductor technology, to execute, to write, to control, memory, to sense, to choose, to form, to feel, storage, to store, to set up, to handle, solid-state technology, to perform, to keep, to select, research, to put in, investigation

6. Complete the following sentences:

1. The arithmetic/logic unit is capable of.... 2. The access time is the time required for transmitting one computer ... out of the ... to where it ... .3. The actual computations are executed in a central ... .4. The part of the control that interprets the instruction is called ... .5. The part of the control that generates the control signals is called ... .6. The control signals choose the proper numbers from ... and send them to ... at the proper time.

7. Memorize the following definitions:

1. The CPU is the nerve centre of any computer since it coordinates and controls the activities of all the other units. 2. The arithmetic/logic unit is that part of the CPU in which the actual computations take place. 3. The control unit is that part of the CPU which obtains instructions from the memory, interprets them and generates the control signals. 4. The instruction decoder is the part of the control unit which interprets or decodes the instruction. 5. The control generator is the part of the control unit which generates the control signals. 6. The instruction register is the part of the instruction decoder in which the address of the current instruction is stored. 7. The current-address register is the second special memory cell located in the instruction decoder. 8 The accumulator is the special memory cell in the arithmetic/logic unit in which the result is formed before it is transferred back to the memory unit.

8. Answer the following questions:

1. What is the general purpose and function of the CPU? 2. How many parts is the CPU composed of? 3. What is the general purpose of the control? 4. What is the arithmetic/ logic unit? 5. What is the instruction decoder? 6. What is the general function of the control generator? 7. What happens in the CPU while an instruction is being executed? 8. What is the accumulator? 9. Where is the accumulator located? 10. Where are the instruction register and the current-address register located?

9. What do you call a unit which:

1) interprets instructions? 2) senses the interpretation of instructions and produces control signals? 3) performs mathematical and logical operations? 4) chooses the proper numbers from the internal memory and sends them to the arithmetic/logic unit at the proper time? 5) obtains instructions from the main memory, interprets them and accomplishes the actual operations?