32_ppt_V2_Computer Science_10_Revision_Presentation of Data

Data presentation

10.2.1.1 converting integrals from decimal to binary, octal, hexadecimal and the other way round
10.2.2.1 use logical operations (OR operation, AND operation, inversion)
10.2.2.2 make truth tables for a given Boolean expression
10. 2. 2. 3 explain the purpose of the main logical elements: OR operator, AND operator, invertor
10.2.2.4 convert logical expressions into logic circuits and the other way round
10.1.1.1 describe the functions of the control device (CD), arithmetic logical unit (ALU) and memory registers as individual processor components
10.2.3.1 compare the Unicode and ASCII coding tables

Learning objectives:

Translation of numbers to decimal number system2 10

1)101001102=1*27+0*26+1*25+0*24+0*23+1*22+1*21+0*20=128+32+4+2=16610

11010

2

10 2

21 is written like this:

Instead of the power of 10, the power of 2 is used here.

1

2

4

8

16

32

64

128

Task 1
Fill in and translate from one number system to another table.

Task 2
According to this scheme, fill in the truth table

✓ What has been learned
✓ What remained unclear
✓ What needs more attention
Reflection Thermometer:
36,60С interesting, useful
380С is not interesting, hard
340С useless, priceless