computer programming languages allow us to give instructions to a computer understand . just as many human – based  languages exist there are an array of computer programming languages that programming can use to communicate with a computer. the portion of the languages that a computer  can understand is called a binary translating programming languages into binary is known as compiling each languages form C languages to PYTHON  has its own distinct features though many times there are commonalities between programming languages.

There are 700 plus different programming languages and from these languages, only 250 managed to stay afloat. The rest were dumped by the programming community. Each programming language is a formal language used in computer programming to implement algorithms. While the performance of the language has always been a major prerequisite for programmers, they always try to come up with new advancements in them.

If a programmer is creating language-oriented software, we must know that each language is implemented differently. Therefore, a program that would need to carry out heavy tasks will need a faster programming language. Enlisted below are four of the most popular programming languages that are slow.
1. Python
Python is the most popular programming language used in data science, web development, and cybersecurity .But Python, unfortunately, is slow because of the GIL and the fact of using an interpreter. However, Python uses some of the powerful libraries and functions like the Numpy module and Filter() built-in function
2. PHP
PHP is a web development language which is used to create a dynamic website
PHP complements HTML, CSS, and MySQL in website deployment
Though the PHP language is used by 79.0% of all the websites but it is incredibly slow because of the lack of just-in-time compilation. In November 2020, PHP 8 came out with a performance Optimisation feature which is a built-in JIT compiler that helped the language in terms of speed and performance.
3. Ruby
Ruby is mostly used for building web applications.
In Ruby, everything is interpreted as an object which makes it an easy tool to work with
In terms of performance, Ruby is a typically interpreted language as it runs the code statement by statement that makes it slower than languages
Ruby also suffers from high memory consumption and slow garbage collection

4. Perl
Perl is a general-purpose programming language originally developed for text manipulation
It is used for a wide range of tasks such as system administration, web development, network programming, GUI development, and more
Perl is pretty sensitive to new implementations
Perl still stumbles behind its high-level programming language counterparts
As Perl does a lot of things, this results in being extremely dynamic
Perl came to ease the tasks that were not possible in C and the other Unix languages. Hence, it was taxed speed-wise. Lastly, speed and performance are important two factors of a programming language when it comes to software implementation. But we cannot blame the programming languages alone. There must be other factors that can be fixed to improve the language is bad code design or any other implementations.
5. Java 
Java is a general- purpose object oriented high level programming languages with several features that make it ideal for web based development.
  • Softwere engineers , JAVA development 
  • used by employers education finance ,health sciences hospitality ,retail and utilites.
  • one of the best hard coding programming languages 

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