Clase 07/03

 

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Information Flow: The Heart of the System

 

Information flow is the path data takes from the moment it is captured from the outside world until it is transformed into useful results for the user. This process is divided into four fundamental stages:

 

1. Data Input

This is the initial phase where the system collects raw data. Without this stage, the computer would have no raw material to work with.

 

Importance: It allows interaction between humans and machines, converting physical actions or analog signals into binary code.

 

Examples: Keyboard, mouse, scanner, microphones, and biometric sensors.

 

2. Processing

This is where the "magic" happens. The Central Processing Unit (CPU) interprets the instructions and transforms the input data into meaningful information.

 

Importance: It is the brain of the system. It determines the speed and efficiency with which complex tasks or mathematical calculations are performed.

 

Examples: Microprocessors (Intel Core, AMD Ryzen), graphics cards (GPUs) performing rendering and logical operations in the ALU.

 

3. Storage

Data, whether processed or waiting, must be saved for later use. It is divided into temporary storage (RAM) and permanent storage (disks).

 

Importance: It guarantees the persistence of information. Without it, we would have to re-enter and reprocess everything every time we turned on the computer.

 

Examples: Solid State Drives (SSDs), USB flash drives, hard disk drives (HDDs), and cloud services.

 

4. Output

This is the final stage where the computer delivers the processing results to the user in a comprehensible format (visual, auditory, or printed).

 

Importance: It closes the communication loop, allowing the user to make decisions based on the processed data.

 

Examples: 4K monitors, 3D printers, speakers, and projectors.