Lesson№15
date24.11.2015
Class 10
Informatics and ICT Lesson Outline
Lesson topic: Test work number 1
Target: checking the knowledge, skills and abilities of students on the topic.
Lesson type: lesson in control of knowledge, skills and abilities.
During the classes
1. Organizational moment
Greetings, checking those present.
2. Test work on the topic: “Information. Information Processes "
Option 1
1. What does computer science study?
a) the design of the computer;
b) ways of presenting, accumulating information processing using technical means;
c) computer programs;
d) general school disciplines.
2. On what property of information will its deliberate distortion be reflected?
a) comprehensibility;
b) relevance
c) reliability;
d) completeness.
3. Select events that can be attributed to information processes:
a) exercise on a sports equipment;
b) roll call of those present at the lesson;
c) waterfall;
d) riding a carousel.
4. Which of the following has the ability to transmit information?
a) stone;
b) water;
c) papyrus;
d) light beam.
5. Which of the following is involved in the information process?
a) sand;
b) house;
c) stone;
d) a person.
6. What property do objects have: bell, speech, fire, radio, e-mail?
a) store information;
b) process information;
c) transmit information;
d) create information.
7. What is an information explosion?
a) daily news from hot spots;
b) an increased number of newspapers and magazines;
c) the rapid growth of flows and volumes of information;
d) communication via the Internet.
8. Cybernetics is:
a) the science of artificial intelligence;
b) the science of the laws governing the processes of control and transmission of information in machines, living organisms and society;
c) computer science;
d) the science of the forms and laws of human thinking.
9. What object cannot serve as a carrier of information during its storage?
a) fabric;
b) paper;
c) magnetic materials;
d) a ray of light.
10. A person receives information:
a) magnetic field;
b) the sense organ;
c) internal organs;
d) instrumental means.
11. The information culture of a society presupposes:
a) knowledge of modern software products;
b) knowledge of foreign languages and their application;
c) the ability to work with information using technical means;
d) the ability to remember a large amount of information.
12. Data is:
a) individual facts characterizing objects, processes, phenomena;
b) identified patterns in a specific subject area;
c) a set of information necessary to organize the activities of the enterprise;
d) registered signals.
13. What is a graphical form of presentation of mathematical information:
a) mathematical equation;
b) function graph;
c) a table of function values;
d) mathematical expression.
Ic= K * IsorIc= K * i
15. A group of schoolchildren came to the pool, which has 4 swimming lanes. The coach said that the group will be swimming on lane 3. How much information did the students get from this message?
2 bits
16. The message that your friend lives on the 10th floor carries 4 bits of information. How many floors are there in the house?
16 etazhey
17. Convert to bits: 57 KB, 57 MB, 57 Gigabytes.
57*2 13 bit466944
57*2 23 bit478150656
57*2 33 bit489626271744
18. The alphabet of some sign system consists of 128 characters ( N ). How much information will a sentence of 56 characters contain ( Ic )? Write the answer in bytes.
i= 7 bits
Ic= 392 bits = 49 bytes
Option 2
1. What is the object of studying computer science?
a) computer;
b) information processes;
c) computer programs;
d) general school disciplines.
2. What should be any signal carrying information?
a) changing;
b) continuous;
c) light;
d) electric.
3. How does a person convey information?
a) magnetic field;
b) speech, gestures;
c) light signals;
d) X-ray radiation.
4. Which of the listed processes cannot be called an information process?
a) weighing information;
b) information coding;
c) information storage;
d) information processing.
5. Which of the following does not have the ability to store information?
a) paper;
b) electronic current;
c) magnetic diskette;
d) papyrus.
6. What property do objects have: a door lock, a computer, a person?
a) objective;
b) relevant;
c) available;
d) reliable.
7. What is the name of the information reflecting the true state of affairs?
a) a diskette with games;
b) a book;
c) geographical map;
d) sound card.
8. Informatization of society is:
a) the process of ubiquitous distribution of PCs;
b) socio - economic and scientific - technical process of creating optimal conditions to meet the information needs of citizens;
c) the process of introducing new information technologies;
d) the process of forming a person's information culture.
9. On the information services market, the following are subject to exchange and sale:
a) licenses, information technology;
b) equipment, premises;
c) forms of primary documents, computers;
d) books, magazines, literature.
10. What is science?
a) acquiring knowledge at school?
b) the use of knowledge of working with a computer in practice;
c) the acquisition of knowledge about the surrounding world, previously unknown to mankind;
d) the acquisition of knowledge about the methods of presentation, processing, accumulation of information using a computer.
11. What concept unites stone, papyrus, birch bark, book and floppy disk?
a) natural origin;
b) historical value;
c) information storage;
d) weight.
12. The word "information" in translation from Latin means:
a) informativeness;
b) information;
c) latest news;
d) reducing uncertainty.
13. What is a symbolic form of representation of mathematical information?
a) mathematical equation;
b) function graph;
c) diagram;
d) oral formulation of the problem.
14. How to determine the number of information messages (uncertainty of knowledge - N )?
N = 2i
15. A telegram was received: "Meet, car number 7". It is known that the train has 16 carriages. How much information was received?
4 bits
16. The message that Petya lives in the second entrance carries 3 bits of information. How many entrances are there in the house?
8 entrances
17. Convert to bits: 51 KB, 51 MB, 51 Gigabytes.
51*2 13 bit417792
51*2 23 bit427819008
51*2 33 bit438086664192
18. The alphabet of some sign system consists of 256 characters ( N ). How much information will a sentence of 40 characters contain ( Ic )? Write the answer in bytes.
i= 8 bits
Ic= 320 bits = 40 bytes
3. Lesson summary
__________________________________________________________________________________________________________________________________________________________
Option number 1 1. What does computer science study? A) computer design; B) ways of presenting, accumulating, processing information using technical means; B) computer programs; D) general school disciplines.
2. On what property of information will its deliberate distortion be reflected? A) comprehensibility; B) relevance; C) reliability; D) completeness.
3. Select events that can be attributed to information processes: A) exercise on a sports equipment; B) roll call of those present at the lesson; C) waterfall; D) riding on a carousel.
4. Which of the following has the ability to transmit information? A) stone; B) water; C) papyrus; D) light beam.
5. Which of the following is involved in the information process? A) sand; B) house; B) stone; D) man.
6. What property do objects have: bell, speech, fire, radio, e-mail? A) store information; B) process information; C) transmit information; D) create information.
7. What is an information explosion? A) daily news from hot spots; B) an increased number of newspapers and magazines; C) the rapid growth of flows and volumes of information; D) communication via the Internet.
8. Cybernetics is: A) the science of artificial intelligence; B) the science of the laws governing the processes of control and transmission of information in machines, living organisms and society; B) computer science; D) the science of the forms and laws of human thinking.
9. What object cannot serve as a carrier of information during its storage? A) fabric; B) paper; B) magnetic materials; D) a ray of light.
10. A person receives information: A) by a magnetic field; B) sense organs; B) internal organs; D) instrumental means.
11. Information culture of a society presupposes: A) knowledge of modern software products; B) knowledge of foreign languages and their application; C) the ability to work with information using technical means; D) the ability to remember a large amount of information.
12. Data are: A) individual facts characterizing objects, processes, phenomena; B) the identified patterns in a specific subject area; B) a set of information necessary to organize the activities of the enterprise; D) registered signals.
13. What is a graphical form of presentation of mathematical information: A) mathematical equation; B) function graph; C) a table of function values; D) mathematical expression.
Option number 2 1. What is the object of study of computer science? A) computer; C) computer programs; B) information processes; D) general school disciplines.
2. What should be any signal carrying information? A) changing; B) continuous; B) light; D) electric.
3. How does a person convey information? A) magnetic field; B) speech, gestures; B) light signals; D) X-ray radiation.
4. Which of the following processes cannot be called an information process? A) weighing information; B) information coding; C) information storage; D) information processing.
5. Which of the following does not have the ability to store information? A) paper; B) electric current; B) magnetic diskette; D) papyrus.
6. What property do objects have: a door lock, a computer, a person? A) objective; B) relevant; B) available; D) reliable.
7. What is the name of the information reflecting the true state of affairs? A) a floppy disk with games; B) a book; B) geographical map; D) sound card.
8. Informatization of society is: A) the process of widespread distribution of PCs; B) the socio-economic and scientific-technical process of creating optimal conditions for meeting the information needs of citizens; B) the process of introducing new information technologies; D) the process of forming a person's information culture.
9. On the market of information services, the following are subject to exchange and sale: A) licenses, information technologies; B) equipment, premises; C) forms of primary documents, computers. D) books, magazines, literature.
10. What is science? A) acquiring knowledge at school; B) using knowledge of working with a computer in practice; B) the acquisition of knowledge about the surrounding world, previously unknown to mankind; D) the acquisition of knowledge about the methods of presentation, processing, accumulation of information using a computer.
11. What concept unites stone, papyrus, birch bark, book and floppy disk? A) natural origin; B) historical value; C) information storage; D) weight.
12. The word "information" in translation from Latin means: A) informativeness; B) information; C) the latest news; D) reducing uncertainty.
13. What is a symbolic form of representation of mathematical information? A) mathematical equation; B) function graph; B) diagram; D) oral formulation of the problem.
Like any object, information has properties. A characteristic distinguishing feature of information from other objects of nature and society is dualism : the properties of information are influenced by both the properties of the initial data that make up its content, and the properties of the methods that fix this information. From the point of view of informatics, the following general qualitative properties seem to be the most important: objectivity, reliability, completeness, accuracy, relevance, usefulness, value, timeliness, comprehensibility, accessibility, brevity, etc.
Objectivity of information ... Objective - existing outside and independently of human consciousness. Information is a reflection of the external objective world. Information is objective if it does not depend on the methods of fixing it, someone's opinion, judgment.
Example... Let's compare two such concepts as information and energy, let's say heat. Let's ask two different people to estimate the room temperature. One may say that he is hot, while the other person is quite happy with this temperature regime. People's opinions about room temperature are subjective. If we measure the temperature with a device, in this case a thermometer, then we will receive an objective assessment that does not depend on someone's opinion. The information is the same.
Objective information can be obtained, for example, using serviceable sensors, measuring instruments. Reflecting in the consciousness of a particular person, information ceases to be objective, since it is transformed (to a greater or lesser extent) depending on the opinion, judgment, experience, knowledge of a particular subject.
Reliability of information ... Information is reliable if it reflects the true state of affairs. Objective information is always reliable, but reliable information can be both objective and subjective. Reliable information helps us make the right decision. Inaccurate information may be due to the following reasons:
deliberate distortion (misinformation) or unintentional distortion of a subjective property;
distortion as a result of interference ("damaged phone") and insufficiently accurate means of fixing it.
Availability of information: A measure of the ability to obtain this or that information. The degree of accessibility of information is influenced simultaneously by both the availability of data and the availability of adequate methods.
Completeness of information ... Information can be called complete if it is sufficient for understanding and making decisions. Incomplete information may lead to an erroneous conclusion or decision.
Accuracy (adequacy) of information is determined by the degree of its proximity to the real state of an object, process, phenomenon, etc. It characterizes the degree of compliance with the real objective state. Inadequate information can be generated when new information is created based on incomplete or inaccurate data.
Good data + inadequate methods = inadequate information
Relevance of information - importance for the present time, topicality, urgency. Only timely information can be useful. Reliable and adequate outdated information is irrelevant.
Usefulness (value) of information ... Usefulness can be assessed in relation to the needs of its specific consumers and is assessed according to the tasks that can be solved with its help.
The most valuable information is objective, reliable, complete, and up-to-date. It should be borne in mind that biased, unreliable information (for example, fiction) is of great importance for a person. Social (public) information also has additional properties:
has a semantic (semantic) character, that is, conceptual, since it is in the concepts that the most essential features of objects, processes and phenomena of the surrounding world are generalized.
has a linguistic nature (except for some types of aesthetic information, such as fine arts). The same content can be expressed in different natural (spoken) languages, written in the form of mathematical formulas, etc.
Over time, the amount of information grows, information accumulates, it is systematized, evaluated and generalized. This property was called growth and accumulation information.
Aging of information is about decreasing its value over time. It is not time itself that ages, but the emergence of new information, which clarifies, supplements or rejects in whole or in part the earlier one. Scientific and technical information ages faster, aesthetic (works of art) - slower.
Consistency, compactness, convenient form of presentation facilitates understanding and assimilation of information.
"Amount of information" -? The entire school library can fit on a computer hard drive. How long does a page take from a scanner? Payment. Research hypothesis. An objective way to measure textual information is the alphabetical approach. You can put a school library on your hard drive, but only in text format.
"Digital Signal Processing" - Areas of DSP development. cos. Information sources. Definition. Lecture plan. sin. Course subject. Typical block diagram of a DSP device. Historical reference. The main sections of the DSP. MIND. Sibert. Digital signal processing. Introductory information on complex arithmetic. Lecture notes. Hardware and software implementation.
"Properties of information" - Properties of information. Information (lat. Vitality, ie the ability of information to maintain its quality over time. Security is a property that characterizes the impossibility of unauthorized access, use or change. Information processes. Completeness is the property of information to exhaustively characterize the displayed object.
"Units of information measurement" - 1 byte = 8 bits. Operations. The simplest alphabet, sufficient to encode any alphabet. Measuring information. Binary alphabet. Information is conveyed using languages. Coding. Information volume. Measuring information. The binary alphabet consists of two characters 0 and 1. Information units.
"The concept of information" - Information about the object. Complete. 3. Properties of information. 2. Perception of information. Relevant. What is information? Reliable. 1. What is information. The concept of information. Useful. Understandable. Perception of information Properties of information.
"The concept of information" - Units of information measurement. Information and information technology. The concept of information is a key concept in computer science. Information is conveyed using languages. There are two forms of information presentation - continuous and discrete. All the variety of information around us can be grouped according to various criteria.
BOU of the Chuvash Republic SPO "ASHT" of the Ministry of Education of Chuvashia
INSPECTION AND INSPECTION WORKS
for studentsIcourse
Compiled by: Elena Semenova
Valentinovna
Alatyr - 2013
Test on the topic: “Information. Information Processes "
Option 1
1. What does computer science study?
a) the design of the computer;
b) ways of presenting, accumulating information processing using technical means;
c) computer programs;
d) general school disciplines.
2. On what property of information will its deliberate distortion be reflected?
a) comprehensibility;
b) relevance
c) reliability;
d) completeness.
3. Select events that can be attributed to information processes:
a) exercise on a sports equipment;
b) roll call of those present at the lesson;
d) riding a carousel.
4. Which of the following has the ability to transmit information?
a) stone;
c) papyrus;
d) light beam.
5. Which of the following is involved in the information process?
c) stone;
d) a person.
6. What property do objects have: bell, speech, fire, radio, e-mail?
a) store information;
b) process information;
c) transmit information;
d) create information.
7. What is an information explosion?
d) the process of forming a person's information culture.
9. On the information services market, the following are subject to exchange and sale:
a) licenses, information technology;
b) equipment, premises;
c) forms of primary documents, computers;
d) books, magazines, literature.
10. What is science?
a) acquiring knowledge at school?
b) the use of knowledge of working with a computer in practice;
c) the acquisition of knowledge about the surrounding world, previously unknown to mankind;
d) the acquisition of knowledge about the methods of presentation, processing, accumulation of information using a computer.
11. What concept unites stone, papyrus, birch bark, book and floppy disk?
a) natural origin;
b) historical value;
c) information storage;
12. The word "information" in translation from Latin means:
a) informativeness;
b) information;
c) latest news;
d) reducing uncertainty.
13. What is a symbolic form of representation of mathematical information?
a) mathematical equation;
b) function graph;
c) diagram;
d) oral formulation of the problem.
Test on the topic: “Coding of information. Number systems "
Option 1
1. Depending on the way the numbers are displayed, the number systems are divided into:
a) Arabic and Roman;
b) positional and non-positional;
c) presentation in the form of a row and in the form of a bit grid.
2. The binary number system has a base:
3. To represent numbers in hexadecimal notation, use:
a) numbers 0 - 9 and letters A -F;
b) the letters A - Q;
c) numbers 0 - 15.
4. In what number system can the number 402 be written?
a) in binary;
b) in ternary;
c) in the fivefold.
5. What is the numberDXXVIIin decimal notation?
a) 527;
6. The disadvantage of a non-positional number system is:
a) it is difficult to perform arithmetic operations;
b) a limited number of characters required to write a number;
7. Given number systems: 2nd, 8th, 10th and 16th. Record 352:
a) is absent in the binary number system;
b) absent in octal;
8. What numbers are used in hexadecimal notation?
c) 0, 3, 2, 1.
9. What is the minimum base that the number system should have if numbers can be written in it: 341, 123, 222, 111.
10. When is 2 * 2 = 11?
a) in the binary number system;
b) in the ternary number system;
c) in the quaternary number system.
11. How is the maximum 4 - digit positive number written in ternary notation?
a) 2222;
12. The numbers are:
a) the symbols involved in recording the number;
b) the letters participating in the recording of the number.
Option 2
1. The number system is:
a) representation of numbers in exponential form;
b) representation of numbers with a constant comma position;
c) a way of representing numbers using symbols that have a certain quantitative meaning.
2. The fivefold number system has the basis:
3. Digits are used to represent numbers in octal:
c) 0 - 7.
4. In what number system can the number 750 be written?
a) in octal;
b) in the septenary;
c) in six.
5. What is the numberCDXIVin decimal notation:
c) 414.
6. The advantage of the positional number system is:
a) it is difficult to perform arithmetic operations;
b) a limited number of characters required to write a number;
c) different spelling of numbers for different nations.
7. Given number systems: 2nd, 8th, 10th and 16th. Record type 692:
a) is absent in the decimal number system;
b) absent in octal;
c) exists in all the named number systems.
8. What numbers are used in the septenary number system?
a) 0, 1, 6;
9. What is the minimum base should the number system have if it is possible to write numbers in it: 432, 768,568,243?
10. When is 2 * 3 = 11?
a) in the five-fold number system;
b) in the ternary number system;
c) in the quaternary number system.
11. How is the maximum 3-digit positive number written in the quaternary number system?
a) 333;
12. The number is:
a) a series of symbols;
b) designation of a certain quantity;
c) a set of characters.
