The third generation computer uses LSI, a small-scale integrated circuit (hundreds to thousands of logic gates are integrated on each chip), which is a logic circuit formed by concentrating multiple electronic components on a substrate of several square millimeters.

The basic electronic components of the third generation computer are small-scale integrated circuits with several to a dozen electronic components (logic gates) on each substrate and medium-scale integrated circuits with dozens of components on each chip.

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When the computer language developed to the third generation, it entered the language stage of "human-oriented". The third generation language is also called "advanced language". High-level language is a programming language close to people's habits.

It allows to write a calculation program for solving problems in English, and the operation symbols and expressions used in the program are similar to the mathematical expressions we use every day. High-level language is easy to learn and universal, and the written program is short and easy to popularize and communicate. It is an ideal programming language.

High-level languages developed from the mid-1950s to the 1970s, and some popular high-level languages have been adopted by most computer manufacturers and solidified in the memory of computers, such as BASIC language (at least 128 different BASIC languages have been popular, although their basic features are the same).

Besides BASIC, there are more than 250 advanced languages such as FORTRAN (Formula Translation), COBOL (General Business Language), C, DL/I, PASCAC and ADA.

References:

Baidu Encyclopedia-The Third Generation Computer