Data segmentIn computing, a data segment (often denoted .data) is a portion of an object file or the corresponding address space of a program that contains initialized static variables, that is, global variables and static local variables. The size of this segment is determined by the size of the values in the program's source code and does not change at run time. The data segment is read/write, since the values of variables can be altered at run time.
Code segmentIn computing, a code segment, also known as a text segment or simply as text, is a portion of an object file or the corresponding section of the program's virtual address space that contains executableinstructions. SegmentThe term "segment" comes from the memory segment, which is a historical approach to memory management that has been succeeded by paging.
Random-access memoryRandom-access memory (RAM; ) is a form of electronic computer memory that can be read and changed in any order, typically used to store working data and machine code.
Java virtual machineA Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages, referred to as JVM languages, that are also compiled to Java bytecode. The JVM is detailed by a specification that formally describes what is required in a JVM implementation.
Symbol tableIn computer science, a symbol table is a data structure where each identifier or symbol (referring to variables, constants, procedures, functions, etc.) in a program's code is associated with the necessary information for its functioning.
Memory managementMemory management (also dynamic memory management, dynamic storage allocation, or dynamic memory allocation) is a form of resource management applied to computer memory. The essential requirement of memory management is to provide ways to dynamically allocate portions of memory to programs at their request, and free it for reuse when no longer needed.
FootprintFootprints are the impressions or images left behind by a person walking or running. Hoofprints and pawprints are those left by animals with hooves or paws rather than feet, while "shoeprints" is the specific term for prints made by shoes. They may either be indentations in the ground or something placed onto the surface that was stuck to the bottom of the foot.Call stackIn computer science, a call stack is a stackdata structure that stores information about the active subroutines and inline blocks of a computer program. This type of stack is also known as an execution stack, program stack, control stack, run-time stack, or machine stack, and is often shortened to simply the "stack".Shared libraryA shared library is a library of executable code that is loaded in memory such that multiple executables (programs and other libraries) can use it at runtime. In contrast, a static library is copied into an executable. A static library can be re-used (a form of sharing) in multiple executables, but each executable contains a copy of the library code instead of sharing a copy in memory with other executables. Although not true today, historically, all libraries were static.Virtual method tableIn computer programming, a virtual method table (VMT), virtual function table, virtual call table, dispatch table, vtable, or vftable is a mechanism used in a programming language to support dynamic dispatch (or run-time method binding). Whenever a class defines a virtual function (or method), most compilers add a hidden member variable to the class that points to an array of pointers to (virtual) functions called the virtual method table.Debugging informationDebugging information is information that describes a correspondence of elements in the source code, such as the names of variables and routines, to entities in the object code, which is found in an object file, such as a shared library or an executable. This kind of information allows a symbolic debugger to provide a debugging experience that corresponds more closely to the source code.Run-time type informationIn computer programming, run-time type information or run-time type identification (RTTI) is a feature of some programming languages (such as C++, Object Pascal, and Ada) that exposes information about an object's data type at runtime. Run-time type information may be available for all types or only to types that explicitly have it (as is the case with Ada). Run-time type information is a specialization of a more general concept called type introspection.*As an Amazon Associate I earn from qualifying purchases.