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2. Answer the following questions to the text a:

1. In what two major parts could be computer operations divided? 2. What are arithmetic operations? 3. What are logical operations? 4. Can computer compare two graphical objects? 5. What makes computer so different from other tools? 6. What must instructions be given to the computer for? 7. What is embedded computer? 8. What modern devices have embedded computers? 9. How many are types of data? 10. What is numeric data? 11. What is textual data? 12. What is audio-visual data? 13. What is physical data?

3. Insert the necessary prepositions to the following sentences:

as, for, in, of, off, on, to, with.

  1. Arithmetic operations are computations … numbers such … addition, subtraction, and other mathematical procedures.

  2. … equal importance is the computers ability to compare two values to determine if one is larger than, smaller than, or equal … the other.

  3. The processing … the computer is based … the computer’s ability to perform logical and arithmetic operations.

  4. Instructions must be given …. the computer to tell it how to process the data it receives and the format needed … output and storage.

  5. … embedded computer can accept data to use several options … its program, but the program itself cannot be changed.

  6. … the advent … new computer applications and hardware, the definition … data has expanded to include many types.

  7. Numeric data consists … numbers and decimal points, as well as the plus (+) and minus (-) signs.

  8. This means that numbers can be used … calculations as well as sorted and compared … each other.

  9. … many large buildings, computer systems process several kinds … physical data to regulate operations.

  10. Computers can set … security alarms, control temperature and humidity, or turn lights … and …, all … response … physical data.

4. Choose the words that are missed in the following sentences:

Alphanumeric, arithmetic, between, computer, data, information, logical, physical, processing, program, safety, video.

  1. This is called a … operation. 2. The comparison may take place … numbers, letters, sounds, or even drawings. 3. Much of the … computers can be divided into two general types of operation. 4. The ability to follow the … sets computers apart from most tools. 5. Both … operations and logical operations are performed on numeric data. 6. Sometimes textual data is known as … data. 7. The … can produce sounds, music and even human voice. 8. It can also accept audio … as an input. 9. These applications increase people’s … and save the time and money. 10. For example, light, temperature and pressure are all types of … data. 11. Data can also take form of drawings and … sequences. 12. Physical … is captured from the environment.

5. Choose the ending to each question:

  1. Computers can set off security alarms, control temperature and humidity, or turn lights on and off, all in response to physical data.

A) can it? B) don’t it? C) cannot they? D) doesn’t it?

  1. Numeric data consists of numbers and decimal points, as well as the plus (+) and minus (-) signs.

A) doesn’t it? B) don’t it? C) cannot they? D) can it?

  1. The processing of the computer is based on the computer’s ability to perform logical and arithmetic operations.

A) don’t they? B) are it? C) isn’t it? D) do they?

  1. Arithmetic operations are computations with numbers such as addition, subtraction, and other mathematical procedures.

A) isn’t they? B) are they? C) do they? D) aren’t they?

  1. These applications increase people’s safety and save the time and money.

A) do they? B) doesn’t they? C) aren’t they? D) don’t they?

  1. The computer can produce sounds, music and even human voice.

A) doesn’t it? B) can it? C) cannot it? D) don’t it?

  1. The ability to follow the program sets computers apart from most tools.

A) cannot they? B) don’t it? C) doesn’t it? D) can it?

  1. These applications increase people’s safety and save the time and money.

A) aren’t they? B) doesn’t they? C) do they? D) don’t they?

  1. With the advent of new computer applications and hardware, the definition of data has expanded to include many types.

A) hasn’t they? B) haven’t they? C) had they? D) don’t they?