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03.04.2023 18:06

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решить тест. 1. Modern began in the early 20th century with the invention of electronic tubes.

a) miniaturization; b) electronics; c) microelectronics

2. John Fleming was the of the first two-electrode vacuum tube.

a) generator; b) receiver; c) inventor

3. A new branch of mathematics, , was invented in England and Germany independently.

a) mechanics; b) arithmetics; c) calculus

4. A young American clerk invented a means of coding __by punched cards.

a) letters; b) data; c) numbers

5. Soon punched cards were replaced by terminals.

a) printer; b) scanner; c) keyboard

6. J. von Neumann simplified his computer by storing in formation in a code.

a) analytical; b) numerical; c) binary

7. Vacuum tubes could control and electric signals.

a) calculate; b) amplify; c) generate

8. Computer data system frees humans from routine error-prone tasks.

a) counting; b) computing: c),processing

9. Computers can store vast amount of information to organize it and it.

a) to travel; b) to retrieve; c) to respond

10. The entered data can be transmitted by networks.

a) communications; b) conversions; c) procession

11. The possibility of is reduced if data were correctly put into the data processing system.

a) character; b) access; c) error

12. Computer data processing systems can at a fraction of a second.

a) receive; b) respond; c) retrieve

13. In modern electronic computers the is the device that acts as a switch.

a) integrated circuit; b) diode; c) transistor

14. A number of actions that convert data into useful information is defined as .

a) data; b) processing; c) data processing

15. Computers can store, organize and retrieve great amounts of information, far beyond theof humans.

a) capacities; b) capabilities; c) accuracy

16. Instructions and data are fed through the equipment to the .

a) output; b) memory; c) input; d) control

17. The main units of the computer communicate with each other___a machine language.

a) in spite of; b) because of; c) by means of

18. The input also the information into the pulse — no-pulse combinations understandable to the computer. a) converts; b) removes; c) accomplishes

19. The four are used to perform basic operations in a computer.

a) basics; b) circuits; c) equipment

20. A computer can solve very complex numerical .

a) communication; b) computations; c) instructions

21. The time required for the computer to locate and transfer data in the storage device is called the data time.

a) sequence; b) access; c) value

22. memories have no moving parts.

a) electronic; b) mechanical; c) electromechanical

23. Magnetic were the main elements used for pri mary memory in digital computers for many years.

a) cores; b) tapes; c) disks

24. is more commonly used for memory at present.

a) bipolar semiconductor; b) MOS; c) field-effect transistor

25. Magnetic disks constitute the storage media.

a) internal; b) primary; c)secondary

26. Data are stored in codes in primary as well as in secondary storage.

a) digital; b) binary; c) numerical

27. Data access time is in electronic memories than that in electromechanical memories.

a) longer; b) much longer; c) shorter

28. The control unit___ instructions from the program.

a) sends; b) changes; c) obtains

29. The results of arithmetic operations are returned to the ___for transferring to main storage.

a) decoder; b) counter; c) accumulator

30. The instruction to be in control unit is from primary storage into the storage register.

a) calculated b) executed; c) read out

31. The___performs logical comparisons of the contents of the storage register and the .

a) adder; b) accumulator; c) comparer

32. The read out command is passed from the___register to the ___register.

a) instruction; b) address; c) storage

33. CPU is designed toand to__basic instructions for the computer.

a) control; b) consist; c) carry out

34. Input-output devices allow the computer to with its external environment.

a) compute; b) command; c) communicate

35. An I/O interface is a specialthat converts input data to the internal codes.

a) register; b) processor; c) plotter

36. A remote banking terminal is an example of a input environment.

a) human-dependent; b) human-independent; c) human-related

37. One of the first and most popular personal computer was in 1977.

a) interpreted; b) introduced; c) integrated

38. Personal computers have a lot of , scientific, engineering, educational being among them.

multiplication; b) application; c) investigation

39. A computer can carry out arithmetic-logical operations

a) quickly; b) instantaneously; c) during some minutes

40. Computers have become __ in homes, offices, research

institutes.

a) commonwealth; b) commonplace; c) common room

41. Space ___ uses computers widely.

a) information; b) production; c) exploration