Computer Programming Software Terms, Glossary and Dictionary
1GL: First Generation Programming Language
First-generation programming language(1GL) is a machine-level programming language, which was written in 1s and 0s. There is no compiler or translator required and it can be understood and used by a CPU directly. The code using 1GL can run very fast and efficiently since it is directly executed by the CPU. However, machine language is somewhat more difficult to learn than higher generational programming languages, and it is far more difficult to edit if errors occur. Furthermore code portability is significantly reduced in the 1GL based code. First-generation programming language is mainly used now on very ancient computers. Machine level programming still finds a use in several areas of modern programming with the help of native-code compilers which creates machine language, usually from a higher-level language.