10. Find the equivalents.

regardless хотя

so that так, чтобы

for instance пока…

though независимо

at a time например

until одновременно

11. Match the terms on the left with the explanations on the right.

1. Computer	a) a set of instructions for solving a specific problem by a computer
2. CPU	b) performs the actual arithmetic and logical operations asked for by a program
3. Hardware	c) manages and coordinates the entire computer system
4. Software	d) transmits coordinating signals and commands to the computer
5. CU	e) holds the instruction from he memory while it is being executed
6. ALU	f) the physical units that make up a computer system
7. Register	g) keeps track of the next instruction to be performed in the main memory
8. Program counter	h) programs and instructions executed by the computer
9. Decoder	i) a machine for manipulating data according to a list of instructions
10. Program	j) a tiny piece of silicon containing complex electronic circuits used inside all computers
11. Chip	k) takes the coded instruction and breaks it down into individual commands necessary to carry it out

12. Provide synonyms from the text for the following words and word-combinations.

To perform, method, to include, at a time, whole number, to look for, effective, sequence, to convert, stage, to use.

13. Form nouns from the following verbs.

To operate, to perform, to represent, to execute, to consider, to add, to subtract, to divide, to multiply, to improve, to compare, to instruct, to develop, to achieve.

14. Provide the translation of the sentences marked*. Define the functions of the infinitives.

15. Translate the following sentences into Russian.

1. Manufacturers design the CPU to carry out basic instructions for the particular computer.

2. The CPU of a computer to be arranged on a single or very small number of integrated circuits is called a microprocessor.

3. Microcomputers were the first computers to use a single microprocessor chip as a processor.

4. There are four steps to be involved in CPU operation.

5. The program counter keeps track of the next instruction to be performed in the main memory.

6. Often the instruction to be fetched must be retrieved from relatively slow memory, causing the CPU to stall while waiting for the instruction to be returned.

7. The control unit interprets the instruction and tells the ALU which operation to perform.

8. To be interpreted, an instruction is transmitted to the instruction decoder.

9. The ALU contains the circuitry to perform simple arithmetic and logical operations.

10. Superscalar computers contain multiple ALUs to process several instructions at a time.

Speaking