# Binary System Questions – Information and communication technologies

## The binary number system

The Binary Number System is the main system for representing information in computer memory. This number system uses two digits: 0 and 1. A binary digit is called a bit. Computers don’t understand words and numbers the way humans do. Modern software allows the end-user to ignore this, but at the lowest levels, your computer operates on a binary electrical signal that has only two states: current or no current. To “understand” complex data, your computer must encode it in binary format.

## Counting in binary

In binary, the first digit is decimal 1. The second digit is 2, the third is 4, the fourth is 8, and so on – it doubles each time. Adding all of these values ​​will give you a decimal number.

1111 (binary) = 8 + 4 + 2 + 1 = 15 (decimal)

Accounting for 0 gives us 16 possible values ​​for four binary bits. Move 8 bits and you get 256 possible values. This takes a lot more space to represent since four decimal digits give us 10,000 possible values. Of course, binary code takes up more space, but computers understand binaries much better than decimals. And for some things like logical processing, binary is better than decimal.
It should be said that there is another basic system that is used in programming: hexadecimal. Although computers do not work in a hexadecimal format, programmers use them to represent binary addresses in a human-readable format when they write code. This is because two digits of a hexadecimal number can represent a whole byte, that is, they replace eight digits in binary. The hexadecimal system uses the numbers 0-9 and the letters A through F to give an additional six digits.

Information and communication technologies ( ICT ) are a set of methods, production processes, and software and hardware that are integrated to collect, processing, store, distributing, displaying, and subsequent use information in the interests of its users.

In practice, all technologies that use special technical information means (computers, audio, cinema, video) are called information technologies of teaching.
When computers began to be widely used in education, the term “new information technology of education” appeared.
Computer technologies develop the ideas of programmed learning, open up completely new, not yet investigated technological options for teaching, associated with the unique capabilities of modern computers and telecommunications. Computer (new information) teaching technologies are the processes of preparing and transmitting information to the student, the means of which is a computer.
The use of information technology increases the effectiveness of the lesson, developing motivation for learning, which makes the learning process more successful.
Information technologies not only open up opportunities for the variability of educational activities, their individualization, and differentiation but also allow to organize the interaction of all subjects of learning in a new way, to build an educational system in which the student would be an active and equal participant in educational activities.
Information technologies significantly expand the possibilities of presenting educational information, involve students in the educational process, contributing to the broadest disclosure of their abilities, and enhancing mental activity.

The main stages of the development of information technology.
ICT applications: communications (cellular and Internet telephony, etc.), information services (Internet, media), modeling (weather forecast), design (CAD), management (production, transport, operations planning), data analysis (tomography), education (distance learning, educational sources, and tools, project activities), arts and entertainment (animation, games).
Personal information. Information security, selectivity, ethics, and law.

## Questions Related to Binary System in ICTs

1. One Mb is equal to:
A. The amount of RAM in every computer
B. 1 billion bytes
C. 1024 Kb
D. 1 thousand bytes
E. 1 million bits
2. One of the rules in a computer lab is:
B. Be nice to one another
C. Talk quietly
D. Do not disturb others
E. All of these
3. How many bits are in a byte?
A. 2
B. 4
C. 7
D.8
E. 10
4. What is Informatics?
A. The theory, representation, processing, and use of information
B. The science about the use of computers
C. Computerized scientific research
D. The use of computers
E. I have no clue what is Informatics
5. What is the other term for Informatics?
A. Computer Technology
B. Computer Literacy
C. Computer Science
D. Information Theory
E. Electronic Equipment
6. What is Medical Informatics?
A. The use of computers in medicine
B. The science of managing, processing, decision making, and scientific analysis of medical knowledge
C. The science of using computer technologies in the process of developing the modern methods of medical diagnostics
D. Analysis of medical information
E. Something that has to do with both Informatics and Medicine
7. The basic unit of measuring the information is
A. 1 byte
B. 1 bid
C. 1 bit
D. 1 bar
E. 1 dollar
8. What is a byte?
A. Combination of eight 1’s or 0’s
B. Basic unit of measuring the information
C. The method of changing ASCII-code of a character in RAM
D. Maximum unit of information
E. Totally unfamiliar concept to me
9. What is the maximum positive number, which can be encoded using 8 bits?
A. 512
B. 256
C. 255
D. 99999999
E. 666
10. One megabyte contains
A. 1,024 kilobytes
B. 1,000 kilobytes
C. 100,000 bytes
D. 1,000,000 bits
E. 2048 kilobytes
11. One gigabyte contains
A. 1,024 megabytes
B. 1,000 megabytes
C. 100,000 kilobytes
D. 1,000,000 bytes
E. 2048 kilobytes
12. What is the generally accepted abbreviation for megabyte?
A. MgB
B. Mb
C. Mb
D. M-byte
E. Mb
13. What is the generally accepted abbreviation for gigabyte?
A. GygB
B. Gb
C. GB
D. G-byte
E. GB
14. What is a computer?
A. General-purpose machine that processes data according to a specific set of instructions
B. Intellectual electronic device
C. Electronic device for playing games and listening to the music
D. Universal electronic device that processes, stores, transfers, and retrieves the information for future analysis and deduction of fully independent logical conclusions
E. That thing sitting on my desk I’ve no idea how to turn on
15. What is hardware?
A. the computer and the equipment attached to it
B. the instructions the computer receives
C. the built-in set of instructions used to start up the computer
D. cables, keyboard, mouse, and monitor
E. something hard
16. What is software?
A. the computer and the equipment attached to it
B. the instructions the computer receives
C. the built-in set of instructions used to start up the computer
D. cables, keyboard, mouse, and monitor
E. something soft
17. Informatics is:
A. A science about the laws, methods of measurement, storage, processing and transmission of information with the use of computer;
B. Reflection of the material world in the form of signals and signs understandable to a certain group of people;
C. The description of the software necessary to operate the computer;
D. The description of structure and functions of the computer at a level, sufficient for comprehension of principles of operation and command system of the computer;
E. The description of the software.
18. The object of study of informatics is:
A. information;
B. cybernetics;
C. programs;
D. files;
E. air.
19. The information is:
A. A science about creation and changing of various documents;
B. A science about the laws, methods of measurement, storage, processing, and transmission of information with the use of computer;
C. Reflection of the material world in the form of signals and signs understandable to a certain group of people;
D. The program for processing the files of graphics;
E. The chaotic and useless set of characters.
20. The information processed by the computer is encoded:
A. with the help of usual digits;
B. only with the help of zeroes and ones;
C. with the help of characters;
D. with the help of digits and characters;
21. The information cannot be represented as:
A. Ones and zeroes;
B. Various devices;
C. Drawings;
D. Sounds;
E. Characters.
22. What is 1 bit:
A. Corresponds to four binary units;
B. Eight sequential bytes;
C. The unit of information equal to 1024 bytes;
D. The binary unit which can be either 0 or 1;
E. The largest unit of information equal to
1024 Mb.
23. What is NOT the property of information:
A. Compulsion;
B. Reliability;
C. Value;
D. Availability;
E. Relevance.
24. The information is called visual:
A. if it is perceived by the person through organs of sight;
B. if it is perceived by the person through the organs of taction (skin);
C. if it is perceived by the person through olfactory organs;
D. if it is perceived by the person through organs of hearing;
E. if it is perceived by the person through organs of taste perception.
25. The information, which does not depend on personal opinion, is called:
A. Authentic;
B. Actual;
C. Objective;
D. Useful;
E. Clear.
26. 1 byte contains
A. 8 units
B. 16 bits
C. 4 bits
D. 8 bits
E. 6 bits
27. 1 kilobyte contains
A. 1000 bytes
B. 1024 bits
C. 1024 bytes
D. 100 bytes
E. 16 gigabytes
28. In computer the number 123 occupies
A. 1 byte
B. 7 bytes
C. 2 bytes
D. 16 bits
E. 3 bytes
29. In computer the number 256 occupies
A. 1 byte
B. 10 bits
C. 2 bytes
D. 3 bytes
E. 3 bits
30. In computer the number 2325 occupies
A. 1 byte
B. 4 bytes
C. 2 bytes
D. 3 bytes
E. 3 bits

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31. What number corresponds to hexadecimal number 0 in the binary system?
A. 0000
B. 0011
C. 0100
D. 1010
E. 0111
32. What number corresponds to hexadecimal number 1 in the binary system?
A. 1011
B. 1110
C. 1100
D. 0101
E. 0001
33. What number corresponds to hexadecimal number 2 in the binary system?
A. 1010
B. 0010
C. 0001
D. 1110
E. 1011
34. What number corresponds to hexadecimal number 3 in the binary system?
A. 0111
B. 1001
C. 0011
D. 1000
E. 1011
35. What number corresponds to hexadecimal number 4 in the binary system?
A. 0100
B. 0000
C. 0111
D. 1010
E. 0010
36. What number corresponds to hexadecimal number 5 in the binary system?
A. 1011
B. 0101
C. 0110
D. 1100
E. 1110
37. What number corresponds to hexadecimal number 6 in the binary system?
A. 0001
B. 1010
C. 0010
D. 0110
E. 1011
38. What number corresponds to hexadecimal number 7 in the binary system?
A. 1000
B. 0101
C. 1101
D. 0000
E. 0111
39. What number corresponds to hexadecimal number 8 in the binary system?
A. 1111
B. 0001
C. 0000
D. 0100
E. 1000
40. What number corresponds to hexadecimal number 9 in the binary system?
A. 0111
B. 0101
C. 1111
D. 1001
E. 0010
41. What number corresponds to hexadecimal number A in the binary system?
A. 0100
B. 1011
C. 1010
D. 1101
E. 0110
42. What number corresponds to hexadecimal number B in the binary system?
A. 1000
B. 0011
C. 1011
D. 1110
E. 1010
43. What number corresponds to hexadecimal number C in the binary system?
A. 0101
B. 1001
C. 1011
D. 1100
E. 1101
44. What number corresponds to hexadecimal number D in the binary system?
A. 1100
B. 1001
C. 0101
D. 1110
E. 1101
45. What number corresponds to hexadecimal number E in the binary system?
A. 1110
B. 1101
C. 0001
D. 0111
E. 1111
46. What number corresponds to hexadecimal number F in the binary system?
A. 1111
B. 1100
C. 1000
D. 1110
E. 0101
47. What number corresponds to binary number 0000 in the hexadecimal system?
A. 9
B. 2
C. 0
D. 3
E. 6
48. What number corresponds to binary number 0001 in the hexadecimal system?
A. 8
B. 1
C. 2
D. 4
E. 3
49. What number corresponds to binary number 0010 in the hexadecimal system?
A. F
B. 4
C. 2
D. 8
E. 5
50. What number corresponds to binary number 0011 in the hexadecimal system?
A. 2
B. 5
C. 7
D. 3
E. B
51. What number corresponds to binary number 0100 in the hexadecimal system?
A. A
B. 4
C. 3
D. D
E. 2
52. What number corresponds to binary number 0101 in the hexadecimal system?
A. B
B. 5
C. E
D. C
E. D
53. What number corresponds to binary number 0110 in the hexadecimal system?
A. 6
B. 8
C. A
D. 2
E. 5
54. What number corresponds to binary number 0111 in the hexadecimal system?
A. C
B. A
C. 7
D. 5
E. 4
55. What number corresponds to binary number 1000 in the hexadecimal system?
A. 8
B. 4
C. 9
D. 6
E. 5
56. What number corresponds to binary number 1001 in the hexadecimal system?
A. 2
B. 6
C. D
D. 9
E. 7
57. What number corresponds to binary number 1010 in the hexadecimal system?
A. B
B. 5
C. 7
D. A
E. 6
58. What number corresponds to binary number 1011 in the hexadecimal system?
A. B
B. 1
C. C
D. 7
E. F
59. What number corresponds to binary number 1100 in the hexadecimal system?
A. E
B. D
C. C
D. 9
E. 4
60. What number corresponds to binary number 1101 in the hexadecimal system?
A. 5
B. 2
C. B
D. D
E. 0

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61. What number corresponds to binary number 1110 in the hexadecimal system?
A. A
B. 2
C. 7
D. E
E. B
62. What number corresponds to binary number 1111 in the hexadecimal system?
A. C
B. 6
C. E
D. F
E. D
63. How many digits are in the hexadecimal system?
A. 32
B. 10
C. 2
D. 16
E. 8
64. How many digits are in the binary system?
A. 32
B. 10
C. 2
D. 16
E. 8
65. How many digits are in the decimal system?
A. 32
B. 10
C. 2
D. 16
E. 8
66. In what system the number 10 is the greatest?
A. binary
B. decimal
D. binary and decimal
E. it is the same in all the systems
67. In what system the number 10 is the smallest?
A. binary
B. decimal
D. binary and decimal
E. it is the same in all the systems
68. In what system the number 0 is the greatest?
A. binary
B. decimal
D. binary and decimal
E. it is the same in all the systems
69. In what system the number 0 is the smallest?
A. binary
B. decimal
D. binary and decimal
E. it is the same in all the systems
70. What digits are included in the hexadecimal system?
A. only 0-9
B. 0-9, A, B, C
C. first 16 characters of Latin alphabet
D. 0-9, A, B, C, D, E, F
E. 0-9, A, B, C, D, E
71. In what system the number 9 is the greatest?
A. binary
B. decimal
E. it is the same in all the systems
72. In what system the number 9 is the smallest?
A. binary
B. decimal
E. it is the same in all the systems
73. What decimal number corresponds to hexadecimal A?
A. 8
B. 11
C. 9
D. 10
E. 15
74. What decimal number corresponds to hexadecimal B?
A. 8
B. 11
C. 9
D. 10
E. 15
75. What decimal number corresponds to hexadecimal C?
A. 8
B. 11
C. 9
D. 10
E. 12
76. What decimal number corresponds to hexadecimal D?
A. 13
B. 11
C. 9
D. 10
E. 15
77. What decimal number corresponds to hexadecimal E?
A. 8
B. 11
C. 14
D. 10
E. 15
78. What decimal number corresponds to hexadecimal F?
A. 8
B. 11
C. 9
D. 10
E. 15
79. How many bytes are in hexadecimal FFFF?
A. 1
B. 2
C. 3
D. 4
E. 5
80. Convert to hexadecimal number the binary number 11111000:
A. F8
B. AC
C. 8F
D. 10
E. B6
81. How many bits are in binary number 101101001?
A. 6
B. 7
C. 8
D. 9
E. 16
82. How many bits are in binary number 11101001?
A. 6
B. 7
C. 8
D. 9
E. 16
83. How many bytes are in binary number 11101001?
A. 1
B. 2
C. 8
D. 4
E. 16
84. What is the maximum positive number, which can be encoded using 16 bits?
A. 255
B. 16383
C. 32767
D. 99999999
E. 1024
85. How many bytes are in 32 bits?
A. 1
B. 2
C. 3
D. 4
E. 5
86. How many bits are in 5 bytes?
A. 1
B. 8
C. 40
D. 32
E. 64
87. General-purpose machine that processes data according to a specific set of instructions is called
A. Computer
B. Information
C. Hardware
D. Software
E. Informatics
88. The computer and the equipment attached to it is called
A. Computer
B. Information
C. Hardware
D. Software
E. Informatics
89. The instructions the computer receives are called
A. Computer
B. Information
C. Hardware
D. Software
E. Informatics
90. A science about the laws, methods of measurement, storage, processing, and transmission of information with the use of a computer is called:
A. Computer
B. Information
C. Hardware
D. Software
E. Informatics
91. Reflection of the material world in the form of signals and signs understandable to a certain group of people is called:
A. Computer
B. Information
C. Hardware
D. Software
E. Informatics