byte code - meaning and definition. What is byte code
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What (who) is byte code - definition

FORM OF INSTRUCTION SET DESIGNED TO BE RUN BY A SOFTWARE INTERPRETER
Byte code; P-Code; P-Codes; Intermediate code; Byte-code; Bitcode; Byte Code; Bytecodes; Portable code; P-code; Byte-compile; Byte-compiler; Byte-code compiler

byte-code         
<file format, software> A binary file containing an executable program, consisting of a sequence of (op code, data) pairs. Byte-code op codes are most often fixed size binary patterns, but can be variable size. The data portion consists of zero or more bits whose format typically depends on the op code. A byte-code program is interpreted by a {byte-code interpreter}. The advantage of this technique compared with outputing machine code for some particular processor is that the same byte-code can be executed on any processor on which the byte-code interpreter runs. The byte-code may be compiled to machine code ("native code") for speed of execution but this usually requires significantly greater effort for each new taraget architecture than simply porting the interpreter. For example, Java is compiled to byte-code which runs on the Java Virtual Machine. (2006-05-29)
byte-code compiler         
<programming, tool> A compiler which outputs a program in some kind of byte-code. Compare: byte-code interpreter. (1995-11-04)
intermediate code         

Wikipedia

Bytecode

Bytecode (also called portable code or p-code) is a form of instruction set designed for efficient execution by a software interpreter. Unlike human-readable source code, bytecodes are compact numeric codes, constants, and references (normally numeric addresses) that encode the result of compiler parsing and performing semantic analysis of things like type, scope, and nesting depths of program objects.

The name bytecode stems from instruction sets that have one-byte opcodes followed by optional parameters. Intermediate representations such as bytecode may be output by programming language implementations to ease interpretation, or it may be used to reduce hardware and operating system dependence by allowing the same code to run cross-platform, on different devices. Bytecode may often be either directly executed on a virtual machine (a p-code machine, i.e., interpreter), or it may be further compiled into machine code for better performance.

Since bytecode instructions are processed by software, they may be arbitrarily complex, but are nonetheless often akin to traditional hardware instructions: virtual stack machines are the most common, but virtual register machines have been built also. Different parts may often be stored in separate files, similar to object modules, but dynamically loaded during execution.