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Low-level programming languages are sometimes divided into two categories: ''first generation'', and ''second generation''.
==Machine code==▼
[[Machine code]] is the only language a microprocessor can process directly without a previous transformation. Currently, programmers almost never write programs directly in machine code, because it requires attention to numerous details which a high-level language would handle automatically, and also requires memorizing or looking up numerical codes for every instruction that is used. For this reason, [[second generation programming language]]s provide one abstraction level on top of the machine code.▼
Example: A function in 32-bit [[x86]] machine code to calculate the ''n''th [[Fibonacci number]]:
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{{DEFAULTSORT:Low-Level Programming Language}}
[[Category:Programming language classification]]#
▲==Machine code==
▲[[Machine code]] is the only language a microprocessor can process directly without a previous transformation. Currently, programmers almost never write programs directly in machine code, because it requires attention to numerous details which a high-level language would handle automatically, and also requires memorizing or looking up numerical codes for every instruction that is used. For this reason, [[second generation programming language]]s provide one abstraction level on top of the machine code.
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