Information processes

Содержание и основные понятия

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Alterna · Chapter 9 · page 9.3
Information processes
Four basic information processes: collection, storage, processing and transmission, with interactive visualizations and mini-disputes.
There's an exchange of information around us: the thermometer measures the temperature, the computer processes the data, the brain memorizes the events, all of which are information processes.
Information technology
Information process
is any action with information: its collection, storage, processing or transmission.
GEF
PIF
OGE#4.6
01
Types of information processes
Collection ♪ Processing ♪ Output ♪ Storage: four key steps in data management.
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OGE#4.6
♪ Incoming
(Billing)
♪ Algorithm
(Chuckles)
♪ Out ♪
(Resulting)
♪ Storage
(Boiler)
📥
Collection
Get data from the surrounding world through sensors and senses.
⚙️
Processing
Algorithm conversion: sorting, computing, searching.
💾
Storage
Maintaining the results on the medium for subsequent use.
📡
Transfer
Sending data from source to recipient via channel.
02
Transmission of information
From source to recipient via various channels of communication: cable, Wi-Fi, fiber optics.
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OGE#5.7
📡
Animation: Data transmission
Select the type of channel and monitor the movement of the data sets.
Copper cable: electrical signals
Source
Communications
Coder.
coding
Channel of communication
Compulsive
⚡
Decoder
decoding
Reception
Communications
feedback (ACK / NACK )
Transceiver
Reception
Shannon model - Weaver (1948)
Classical diagram of the communication system:
Source
Generates message
Coder.
Transforms into signal
Channel
(with interference!)
Decoder
It's regenerating.
Reception
This is the model used for the entire coding theory (chapter 11) and error correction.
03
Visualization of sorting
Sorting is one of the key processing processes. Compare 5 algorithms visually.
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PIF
EEG#3.6
🔧
Visualization of array sorting
40 elements, 5 algorithms.
normal
·
Comparison
·
exchange
·
Classified
·
Support
04
Mini test
Five random questions from Bank 40.
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OGE
0 / 500 XP
0 / 5
Press "Start Quest" for starters.