first generation language - meaning and definition. What is first generation language
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What (who) is first generation language - definition

BINARY MACHINE LANGUAGE FOR PROGRAMMING FIRST GENERATION COMPUTERS
First generation language; First-generation language; 1GL; First generation programming language

First-generation programming language         
A first-generation programming language (1GL) is a machine-level programming language."Computer Hope, Generation languages"
first generation language         
Raw machine code. When computers were first "programmed" from an input device, rather than by being rewired, they were fed input in the form of numbers, which they then interpreted as commands. This was really low level, and a program fragment might look like "010307 010307". Almost no one programs in machine language anymore, because translators are nearly trivial to write. (1994-12-01)
Fourth-generation programming language         
4GL-MORE USER FRIENDLY AND NON-PROCEDURAL IN NATURE I.E, USERS NEED TO THINK WHAT NOT HOW
Fourth generation programming language; 4GL; Fourth Generation Language; 4th Generation Language; 4th generation language; Fourth generation language; Fourth-generation language; Commercial business software; 4th-generation programming language; 4gl
A fourth-generation programming language (4GL) is any computer programming language that belongs to a class of languages envisioned as an advancement upon third-generation programming languages (3GL). Each of the programming language generations aims to provide a higher level of abstraction of the internal computer hardware details, making the language more programmer-friendly, powerful, and versatile.

Wikipedia

First-generation programming language

A first-generation programming language (1GL) is a machine-level programming language.

A first generation (programming) language (1GL) is a grouping of programming languages that are machine level languages used to program first-generation computers. Originally, no translator was used to compile or assemble the first-generation language. The first-generation programming instructions were entered through the front panel switches of the computer system.

The instructions in 1GL are made of binary numbers, represented by 1s and 0s. This makes the language suitable for the understanding of the machine but far more difficult to interpret and learn by the human programmer.

The main advantage of programming in 1GL is that the code can run very fast and very efficiently, precisely because the instructions are executed directly by the central processing unit (CPU). One of the main disadvantages of programming in a low level language is that when an error occurs, the code is not as easy to fix.

First generation languages are very much adapted to a specific computer and CPU, and code portability is therefore significantly reduced in comparison to higher level languages.

Modern day programmers still occasionally use machine level code, especially when programming lower level functions of the system, such as drivers, interfaces with firmware and hardware devices. Modern tools such as native-code compilers are used to produce machine level from a higher-level language.