Generations of Programming Languages:
The vocabulary and set of grammatical rules used for instructing a computer to perform specific tasks make up a programming language. With the help of a computer language, a program is developed. This program tells a computer what needs to be done.
All computer languages have a vocabulary of their own. Every symbol of the vocabulary has a definite unambiguous meaning, which can be looked up in a user manual for that language. Each symbol tells the computer to do a particular job. The symbols of a particular language must be used according to the set rules, which are known as the syntax of the language. If a programmer does not strictly follow the syntax of a programming language, the computer will not be able to understand the instructions.
Over the years, programming languages have changed considerably. They have progressed from machine-oriented languages that use strings of binary 0s and 1s to problem-oriented languages that use common mathematical and/or English terms.
Computer languages can be classified into two broad categories:
- Low-level languages
- High-level languages
Low-level languages are hardware friendly, i.e., these languages are closer to the hardware than to the human languages. The machine and assembly languages are low-level languages. First generation languages and second generation languages are considered as low level languages. Languages of higher generations are considered as high-level languages.
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