Computer science option 0
Replenishment date: 18.12.2013
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Description
"Informatics" - ICh96 (3).
Task 1.
Theoretical question.
0. List the information input devices in the PC. Give their brief description. Give examples of their use on a home PC.
1. List the devices for outputting information from the PC. Give their brief description. Give examples of their application in the workplace.
2. List the computer (hardware and software) multimedia tools. Give their brief description.
3. Name any three application programs used on the PC. Describe the principles of their application.
4. List the types of information in the form of their presentation. Give a brief description of each species.
5. Name any three operating systems installed on the PC. Give their comparative characteristics.
6. Name any three Internet browsers intended for installation on a PC. Give their comparative characteristics.
7. Conduct a comparative analysis of two text editors installed in the Windows operating environment.
8. List the Microsoft Office tools and describe any two of your choice.
9. List the devices and technologies for storing information. Give their comparative characteristics.
Task 2.
The algorithm for calculating the variable y is presented in the form of a block diagram in Figure 1.
The values of the input variables for each option are shown in Table 1.
Perform all the operations of the algorithm manually, describing each of its actions. Present the beginning of the algorithm in the form of a statement: “Let a =…, b =…, c =…”. Present the end of the algorithm in the form of a statement: "Answer: y = ...".
Table 1.
change values
GOVERNMENTAL
options
a
b
c
0 7 1 3
1 8 2 2
2 1 5 5
3 4 –1 4
4 -1 7 1
5 2 10 –2
6 3 1 7
7 0 7 –1
8 9 4 2
9 6 –2 0
Fig. 1
Task 3.
Let A and B be binary numbers. Perform steps a) A + B; b) A - B; c) A ∙ B.
Check it by converting the numbers A and B to the decimal system.
The A and B values for each option are shown in Table 2.
Table 2.
options
Know
cheniya
numbers
0
1
2
3
4
5
6
7
8
9
А 11001 10011 11101 10111 11011 10101 10001 11110 10010 11111
В 101 111 100 110 110 100 111 101 110 101
Task 1.
Theoretical question.
0. List the information input devices in the PC. Give their brief description. Give examples of their use on a home PC.
1. List the devices for outputting information from the PC. Give their brief description. Give examples of their application in the workplace.
2. List the computer (hardware and software) multimedia tools. Give their brief description.
3. Name any three application programs used on the PC. Describe the principles of their application.
4. List the types of information in the form of their presentation. Give a brief description of each species.
5. Name any three operating systems installed on the PC. Give their comparative characteristics.
6. Name any three Internet browsers intended for installation on a PC. Give their comparative characteristics.
7. Conduct a comparative analysis of two text editors installed in the Windows operating environment.
8. List the Microsoft Office tools and describe any two of your choice.
9. List the devices and technologies for storing information. Give their comparative characteristics.
Task 2.
The algorithm for calculating the variable y is presented in the form of a block diagram in Figure 1.
The values of the input variables for each option are shown in Table 1.
Perform all the operations of the algorithm manually, describing each of its actions. Present the beginning of the algorithm in the form of a statement: “Let a =…, b =…, c =…”. Present the end of the algorithm in the form of a statement: "Answer: y = ...".
Table 1.
change values
GOVERNMENTAL
options
a
b
c
0 7 1 3
1 8 2 2
2 1 5 5
3 4 –1 4
4 -1 7 1
5 2 10 –2
6 3 1 7
7 0 7 –1
8 9 4 2
9 6 –2 0
Fig. 1
Task 3.
Let A and B be binary numbers. Perform steps a) A + B; b) A - B; c) A ∙ B.
Check it by converting the numbers A and B to the decimal system.
The A and B values for each option are shown in Table 2.
Table 2.
options
Know
cheniya
numbers
0
1
2
3
4
5
6
7
8
9
А 11001 10011 11101 10111 11011 10101 10001 11110 10010 11111
В 101 111 100 110 110 100 111 101 110 101