how code does work?

Question

i want learn code

Answer 1

If you're asking how code actually gets executed in a computer, here's a shorter explanation:

Computers only understand binary language, i.e., 0's and 1's. When we write code in a high-level language (HLL) such as Python, Java, C++, or C#, it needs to be converted into machine (CPU) understandable instructions. This process typically involves the following steps:

1. Compilation:
Source Code: The developer writes code in a high-level language.

Compiler: A compiler is a special program that converts the source code into machine code. This process involves several stages:

a. Lexical Analysis: The compiler breaks down the source code into tokens, which are the basic syntax elements (e.g., keywords, operators, identifiers).

b. Syntax Analysis: The compiler checks the tokens against the language’s grammar rules to form a syntax tree, ensuring that the code is structurally correct.

c. Semantic Analysis: The compiler verifies that the code makes sense in terms of variable declarations, type checking, and other language-specific rules.

d. Optimization: The compiler may optimize the code for performance, reducing the number of instructions or improving memory usage.

e. Code Generation: The compiler translates the syntax tree into intermediate code (often in assembly language), which is then converted into machine code (binary instructions) specific to the target CPU.

2. Linking:
The linker resolves references between different pieces of code and combines them into a single executable file.

3. Loading:
The operating system loads the executable into memory, preparing it for execution.

At this point, the code has been converted into machine-understandable instructions.

4. Execution:
The CPU fetches these instructions, decodes them, and executes the machine instructions generated by the compiler.
This is how code written in a high-level language is executed by a CPU that only understands 0's and 1's.

Answer 2

Code works as a set of instructions written in a programming language to communicate with a computer. Computers understand binary (0s and 1s), so code is translated into machine-readable format using compilers (for languages like C++) or interpreters (for languages like Python).

When you run code, the computer follows your instructions step by step to perform tasks like calculations, web page rendering, or automation. To start coding, learn basic concepts like variables, conditions, loops, and functions in beginner-friendly languages such as Python or JavaScript. Practice by building small projects to enhance your skills.

Answer 3

"Code works by giving instructions to a computer to perform specific tasks. It’s the language that tells software how to function and respond." https://washingmachinerepairkuwait.com/ We repair and maintain any brands of Automatic washing machine In Kuwait, we have the most qualified washing machine technician and experts that are both Pakistani and Indian.