Information volume and units

Содержание и основные понятия

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Chapter 12
Information volume and units
Learn how to compute the information volume, translate between units, and calculate the transmission rate.
Chapter 12 contains five sections with theories, calculators, OGE/EGE banks and a polygon examination.
GEF
PIF 7-9
OGE No. 1.7
EEG No. 7.11
01
Key formulas
I=K×i
Inf volume
N=2
i
Capability of the alphabet
V=I/t
Transmission speed
02
Basic coding
ASCII
KOI-8
UTF-8
Win-1251
UTF-16
UTF-32
03
Two steps.
Degree
Meaning
Computer science
Physics
Variance
2
10
1 024
1 KB
1,000 (kilo)
+2.4%
2
20
1 048 576
1 MB
1 million (mega)
+4.9%
2
30
1 073 741 824
1 GB
1 billion (Giga)
+7.4%
2
40
1 099 511 627 776
1 TB
1 trillion (Tera)
+10.0%
Disk manufacturers
use decimal places (10
9
), therefore "1 TB" = ~931 GB in the dual system.
04
Chapter Pages
12.1
Infoquence
I=K×i, conveyor, calculator
12.2
Units
Beat Byte-BM-MB-GB-TB, converter
12.3
Speed
V=I/t, calculator, animation
12.4
Examination
Timer test, quest, task
📦
Data conveyor
Animation of 5 Phases