#low-level language

• Assembled — Having been mounted, combined, or structurally joined from multiple separate parts, components, or subassemblies to form a functional whole, a complex mechanism, or a unitary piece of equipment. In computer science and programming, the term describes source code written in a low-level language (assembly) that has been translated, processed, and converted by a specialized program into instructions directly executable by the processor (machine code).
• Assembler — A computer utility program that translates instructions written in an assembly language (a low-level programming language using mnemonics) into binary machine code, directly executable by the central processing unit (CPU). In everyday IT jargon, the term is often used metonymically to denote the Assembly language itself, used for software optimization, operating system development, and microcontroller programming.