Welcome to the computer world. Practice materials for 1st year students. Еранина Т.И - 9 стр.

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Task 10. Give the translation of the following words with negative prefixes.

          dis-: disadvantage; disconnect; disappear; disclose; discomfort;
         discontinue; discount; discredit; discriminate; disintegrate.
         in-: invisible; inaccurate; inactive; incapable; incompact;
         insignificant; inhuman; informal; ineffective; indifferent; indecisive;
         inconsumable; incorrect.
         un-: uncontrollable; unbelievable; unable; unchanged; uncomfortable;
         uncommunicative;           undisciplined;       unexpected;       unfavourable;
         unforgettable; unkind.
         non- :non-effective; non-aggressive; noncomparable; non-computable;
         nonconstant;         noncontrollable;        nondigital;      nondi-mensional;
         nonprogrammable; nonusable.
         ir-: irregular; irrelative; irresponsive; irrational; irreplaceable;
         irrecognizable.

Task 11. Read the text and translate them in written form. Decide on
         suitable titles for them.

                    1. It is well known that the quick development of electronics
         began with the invention of transistors. They replaced electronic tubes
         due to their numerous advantages. One of the main advantages of the
         transistors in comparison with the vacuum tube is absence of filament
         power loss. One of the principal causes of damages in electronic
         circuitry is high temperature. The heat causes breakdown of tubes and
         other circuit elements that are very sensitive to this influence. The
         transistor, on the other hand, does not heat its surroundings.
                     Another advantage of the transistor is its long life. The life
         of the average transistor is more than ten thousand operating hours.
         Because of its long lifetime and ruggedness, the transistor is very
         reliable and has much better efficiency in professional equipment.

                     2. As we know, transistors replaced electronic tubes due to
         their numerous advantages. One of the advantages of the transistor is
         its small dimensions. Because of their small size, the absence of heating
         and other properties, transistors make it possible to produce compact,
         small-dimensioned electronic devices which consume very little power.
                     In conclusion it is important to note that transistors revolu-
         tionized many fields of technology. They are successfully used for direct
         transformation of heat energy by means of thermal elements. They are
         also used to convert radiant energy into electricity with the help of
         photocells or solar batteries. Light sources and lasers are built on the