- •Рецензенты:
- •Рекомендует к печати
- •What is a computer?
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask general questions to the following sentences:
- •The use of computers
- •1. Read and remember the words from the text b:
- •2. Make up the pairs or groups of the words which are close in their meanings. Use the words given below.
- •3. Match the words with their definitions:
- •4. Put the sentences into Past Simple:
- •5. A) Give a title to the following fragment and translate it into Russian in writing:
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below: communication (1)
- •Computers in the different sphres of our life
- •1. Answer the following questions:
- •2. Put the necessary prepositions to the following sentences:
- •3. Put the missing words to the sentences:
- •4. Discuss with your partner what you have learned about computers in general.
- •5. Make a short report “The Use of Computers”.
- •Some facts from the history of computers
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask alternative questions to the following sentences:
- •The fastest computers of the world
- •1. Read and remember the words from the text b:
- •2. Form the new words from the verbs:
- •3. Translate the word-combinations with: a) Participle I and b) Participle II:
- •4. Revise Active and Passive Voice of the verb. Open the brackets and use the proper form of the verb:
- •5. A) Give a title to the following fragment and translate it into Russian in writing:
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below: communication (2)
- •From the history of computer development
- •1. Answer the following questions:
- •2. Put in the necessary words to the following sentences:
- •3. Make up the pairs of words that are close in their meaning:
- •4. Discuss with your partner some facts from the history of computers.
- •5. Make a short report “The History of Computers”.
- •Data processing and data processing systems
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask general questions to the following sentences:
- •Storage units
- •1. Read and remember the words from the text b:
- •2. Try to find in the text the words the meaning of which are close to the meaning of the following ones:
- •3. Divide the words into three groups – nouns, adjective, adverb – according to their suffixes. Translate the words, if necessary use the vocabulary:
- •4. Translate the sentences with Perfect Participle Active and Perfect Participle Passive:
- •5. A) Read the following fragment and translate it into Russian in writing:
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below: network development
- •Computer technology
- •1. Answer the following questions:
- •2. Put the necessary prepositions to the following sentences:
- •3. Put the missing words to the sentences:
- •4. Make a short report “Storage Units of the Computers”.
- •A computer system
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask special questions to the following sentences:
- •Input-output environment
- •1. Read and remember the words from the text b:
- •2. Form nouns from the following verbs using suffixes:
- •3. Open the brackets using the correct form of the verb:
- •4. Combine the words from the left part with their interpretations from the right part:
- •5. A) Give a title to the following fragment and translate it into Russian in writing:
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below:
- •The elements of computer system
- •1. Answer the following questions:
- •2. Give the Russian equivalents of the following words and make up the sentences using them:
- •3. Say if the statements are true or false:
- •4. Discuss with your partner what you have learned about the elements of computer system.
- •What is hardware?
- •Input hardware.
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask general questions to the following sentences:
- •Scanners
- •1. Read and remember the words from the text b:
- •2. Form comparative and superlative degrees of the following adjectives:
- •3. Translate the following sentences with infinitives:
- •4. Translate the following word-combinations:
- •5. A) Translate the following text into Russian in writing:
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below:
- •Input devices
- •1. Look through the following words and then answer the following questions:
- •2. Put the necessary prepositions to the following sentences:
- •3. Put the missing words to the sentences:
- •4. Discuss with your partner different types of hardware.
- •5. Make a short report “a Scanner”.
- •Computer operations
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask general questions to the following sentences:
- •Types of software
- •1. Read and remember the words from the text b:
- •2. Translate into English:
- •3. Translate the following sentences into Russian. Pay attention to the underlined words:
- •4. Match the words and their definitions:
- •5. A) Translate the following text into Russian in writing: memory
- •6. Read the following text with the dictionary if it is necessary. Perform the tasks given below:
- •Operating systems
- •1. Look through the following words and then put 10 questions to the text:
- •2. Put the necessary prepositions to the following sentences:
- •3. Put the missing words to the sentences:
- •4. Discuss with your partner what you have learned about the types of computer data.
- •Output devices. Printers
- •1. Read and learn the following words:
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Choose the ending to each question:
- •6. Ask general questions to the following sentences:
- •Keyboard devices
- •1. Look through the following words and then put 10 questions to the text “Keyboard devices”:
- •2. Translate the following sentences. Pay attention to the underlined words:
- •3. Translate the following sentences. Pay attention to their special formation:
- •4. A) Translate the following text into Russian in writing: magnetic media devices
- •5. Read the following text with the dictionary if it is necessary. Perform the tasks given below: higeness of the internet
- •6. Discuss with your partner what you have learned about output devices.
- •7. Make a short report “Keyboard Devices”.
- •A modem
- •1. Read and learn the following words;
- •2. Answer the following questions to the text a:
- •3. Insert the necessary prepositions to the following sentences:
- •4. Choose the words that are missed in the following sentences:
- •5. Put different types of questions to the following sentences:
- •Electronic mail
- •1. Learn the following words and make up as many sentences as you can using these words:
- •2. Translate the sentences into Russian:
- •Internet rules of safety.
- •Internet child safety.
- •1. Read and remember the words from the text c:
- •2. Read the following texts containing information about Internet and make a report “What the Internet is”.
- •3. Read and translate the text “What is Internet Explorer?” Say what else you know about other Web browsers.
- •4. Discuss with your partner what you have learned about Internet rules of safety.
- •5. Make a short report “Modems and Electronic Mail”.
- •Words and word combinations to be remembered.
- •History of the computer
- •Generations of computer
- •History of data processing
- •Digital and analog computers
- •History of programming languages
- •Words and word combinations to be remembered.
- •Computer components
- •Evolution in size
- •Microprocessor as a cpu
- •Bill gates
- •What is internet?
- •I. Translate the sentences into Russian.
- •II. Put the verbs in brackets into a correct form.
- •Translating machines
- •What is steganography?
- •Words and word combinations to be remembered.
- •Uses of the web
- •Computer-intagrated manufacturing
- •Computer graphics
- •Cryptography
- •Words and word combinations to be remembered.
- •Computer viruses
- •What is a trojan horse and what threat does it pose?
- •Increase your knowledge of computer viruses
- •You cannot get virus from
- •Antivirus software
- •Preventing a virus
- •Word and word combinations to be remembered.
- •Computers in science
- •The future of computers
- •No worms in these apples
- •Supplementary reading
- •1. Look through the words to the text “computer literacy”:
- •2. Read the text, translate it and give a brief summary. Computer literacy
- •1. Look through the words to the text “from the history of telephony”:
- •2. Read the text, translate it and give a brief summary. From the history of telephony
- •1. Look through the words to the text “the first calculating devices”:
- •2. Read the text, translate it and give a brief summary. The first calculating devices
- •1. Look through the words to the text “charles babbage”:
- •2. Read the text, translate it and give a brief summary. Charles babbage
- •1. Look through the words to the text “development of electronics”:
- •2. Read the text, translate it and give a brief summary. Development of electronics
- •1. Look through the words to the text “microelectronics and microminiaturization”:
- •2. Read the text, translate it and give a brief summary. Microelectronics and microminiaturization
- •1. Look through the words to the text “advantages of computer data processing”:
- •2. Read the text, translate it and give a brief summary. Advantages of computer data processing
- •1. Look through the words to the text “hardware, software, and firmware”:
- •2. Read the text, translate it and give a brief summary. Hardware, software, and firmware
- •1. Look through the words to the text “from the history of computer development in russia”:
- •2. Read the text, translate it and give a brief summary. From the history of computer development in russia
- •1. Look through the words to the text “functional units of digital computers”:
- •2. Read the text, translate it and give a brief summary. Functional units of digital computers
- •1. Look through the words to the text “storage devices”
- •2. Read the text, translate it and give a brief summary. Storage devices
- •1. Look through the words to the text “management information technology (it)”
- •2. Read the text, translate it and give a brief summary. Management information technology (it)
- •1. Look through the words to the text “storage devices”
- •2. Read the text, translate it and give a brief summary. One woman's experience as a global head of it a successful manager sees a wider role for women in the male-dominated world of it networks
- •English-russian dictionary
- •Contents
- •Учебное издание
- •Английский язык
- •010503.65 «Математическое обеспечение и администрирование информационных систем»; 080116.65 «Математические методы в экономике».
- •Подписано в печать Формат 60х84
- •410003, Саратов, ул. Радищева, 89. Сгсэу
Computer graphics
A) Computer graphics means the use of computers to produce pictorial images. The images produced can be printed documents or animated motion pictures, but the term computer graphics refers particularly to images displayed on a monitor. Monitor can display graphic as well as alphanumeric data. A computer-graphics system basically 104 consists of a computer to store and manipulate images, a monitor, various input and output devices, and a graphics software package – i.e., a program that enables a computer to process graphic images by means of mathematical language.
A computer displays images on the phosphor-coated surface of a graphics display screen by means of an electron beam that sweeps the screen many times each second. Those portions of the screen energized by the beam emit light, and changes in the intensity of the beam determine their brightness and hue. The brightness of the resulting image fades quickly, however, and must be continuously “refreshed” by the beam, typically 85 times per second.
B) Graphics programs enable a user to draw, color, shade, and manipulate an image on a display screen with the use of a mouse, a pressure-sensitive tablet, or a light pen. Preexisting images on paper can be scanned into the computer through the use of scanners, digitizers, pattern-recognition devices, or digital cameras. Frames of images on videotape also can be entered into a computer. Various output devices have been developed as well; special programs send digital data from the computer’s memory to an n imagesetter or film recorder, which records the image sequence on video film. The computer can also generate hard copy by means of plotters and laser or dotmatrix printers.
Pictures are stored and processed in a computer’s memory by either of two methods: raster graphics and vector graphics. Raster-type graphics maintain an image as a matrix of independently controlled dots, while vector graphics maintain it as a collection of points, lines, and arcs. Raster graphics are now the dominant computer graphics technology.
Raster graphics create uniform colored areas and distinct patterns and allow precise manipulation. Raster graphics emerged in the early 1970s and had largely displaced vector systems by the ‘90s.
Vector-graphics technology which was developed in the mid-1960s and had been widely used until it was supplanted by raster graphics. Its application is now largely restricted to highly linear work in computer-aided design and architectural drafting, and even this is performed on raster-type screen with the vector-type screens with the vectors converted into dots.
Computer graphics has found widespread use in printing, product design and manufacturing, scientific research, and entertainment since 1960s.
* Name the components of a computer-graphics system.
TEXT 4
Scan the text, pay attention to the words “however”, “suppose”, “generally” and their place in the sentence.
Cryptography
Cryptography is no longer a military thing that should not be messed with. It is time to demystify cryptography and make full use of the advantages it provides for the modern society. In the following text basic terminology and the main methods of cryptography are presented.
Suppose that someone wants to send a message to a receiver and wants to be sure that no-one can read the message. However, there is a possibility that someone else opens the letter or hears the electronic communication. In cryptographic terminology, the message is called plaintext or cleartext. Encoding the contents of the message in such a way that hides its contents from outsiders is called encryption. The encrypted message is called the ciphertext. The process of retrieving the plaintext from the ciphertext is called decryption. Encryption and decryption usually make use of a key, and the coding method is such that decryption can be performed only by knowing the proper key.
Cryptography is the art or science of keeping messages secret. Cryptanalysis is the art of breaking ciphers, i.e. retrieving the plaintext without knowing the proper key. People who do cryptography are cryptographers, and practitioners of cryptanalysis are cryptanalysts.
Generally, cryptography deals with all aspects of secure messaging: authentication, digital signatures, electronic money and other applications. Cryptology is the branch of mathematics that studies the mathematical foundations of cryptographic methods.
* Make up your own sentences with the words “however”, “suppose”, “generally”.
* Choose the words with the root “crypt” and translate them.
Unit 13