bytecode
RU: байт-код
A compact, platform-neutral intermediate binary representation produced by compiling source code (Java → .class bytecode, Python → .pyc bytecode, C# → CIL). Bytecode is not machine code: it targets a virtual machine (JVM, CPython VM, CLR) rather than a real CPU. The VM then either interprets the bytecode or JIT-compiles it to native machine code at run time.