modifierSee "statement modifier", "regular expression modifier", and "lvalue modifier", not necessarily in that order.
ModulationModulation is the method by which a high-frequency digital signal is grafted onto a lower-frequency analog wave, so that digital packets are able to ride…
moduleThe smallest self-contained, environmentally protected structure housing interconnected photovoltaic cells and providing a single dc electrical output…
modulusAn integer divisor when you're interested in the remainder instead of the quotient.
monitor(MAH-nih-ter) In medicine, to regularly watch and check a person or condition to see if there is any change.
mortalA temporary value scheduled to die when the current statement finishes.
MSC (Mobile Switching Center)A Mobile Switching Center (MSC) is a unit within a cellular phone network that automatically coordinates and switches calls in a given cell.
multidimensional arrayAn array with multiple subscripts for finding a single element. Perl implements these using references--see perllol and perldsc.
multiple inheritanceThe ability of a class or interface to extend more than one class or interface.
multiple-boot optionsThe hardware configurations of some computers are able to run different operating system and window manager combinations.
multiprogramming systemAn operating system that is able to run multiple programs concurrently.
multithreadedDescribes a program that is designed to have parts of its code execute concurrently. See also thread.
mutator methodA method specifically designed to allow controlled modification of a private attribute of a class.
Mutual AuthenticationAn authentication mechanism employed by two parties for the purpose of proving each other's identity to one another.
mutual recursionRecursion that results from two methods calling each other recursively.
named pipeA "pipe" with a name embedded in the "filesystem" so that it can be accessed by two unrelated processes.
namespaceA prefix applied to URIs, URNs, and XML entities to prevent naming conflicts.
naming contextA set of associations between unique, atomic, people-friendly identifiers and objects.
naming environmentA mechanism that allows a component to be customized without the need to access or change the component's source code.
NativeA Java keyword that is used in method declarations to specify that the method is not implemented in the same Java source file, but rather in another…
native methodA method written in a language other than Java, but accessible to a Java program.
nested classA class defined inside an enclosing class. See inner class.
network addressThe most important attribute of a socket, like your telephone's telephone number. Typically an IP address. See also "port".
NFSNetwork File System, which allows you to mount a remote filesystem as if it were local.
no-arg constructorA constructor that takes no arguments. By default, all classes without an explicit constructor have a default no-arg constructor with public access.
non-modalA dialog is non-modal if its parent application is not blocked from further activity while the dialog is being shown. See modal.
normalizationA conceptual database design task that involves applying data dependency to a data model to avoid data inconsistencies by prohibiting redundancy.
notationA mechanism for defining a data format for a non-XML document referenced as an unparsed entity. This is a holdover from SGML.
nullThe null type has one value, the null reference, represented by the literal null, which is formed from ASCII characters.
null characterThe \u0000 character. Care should be taken not to confuse this with the null reference.
null listA "list value" with zero elements, represented in Perl by ().
null referenceA value used to mean, `no object'. Used when an object reference variable is not referring to an object.
null stringA "string" containing no characters, not to be confused with a string containing a "null character", which has a positive length and is "true".
number baseThe base used to interpret numerical characters. Decimal notation is base 10 and binary notation is base 2, for instance.
numeric contextThe situation in which an expression is expected by its surroundings (the code calling it) to return a number. See also "context" and "string context".
NVShort for Nevada, no part of which will ever be confused with civilization. NV also means an internal floating-point Numeric Value of the type a "scalar"…
nybbleHalf a "byte", equivalent to one "hexadecimal" digit, and worth four bits.
OASISAn isolated, fertile tract or green locality in a desert region, made so by the presence of water. See also Palm oasis
ObfuscationObfuscation is a technique used to complicate code. Obfuscation makes code harder to understand when it is de-compiled, but it typically has no affect on…
objectAn entity such as a file, folder, shared folder, printer, or Active Directory object, described by a distinct, named set of attributes.
object constructionThe creation of an object, usually via the new operator. When an object is created, an appropriate constructor from its class is invoked.
object referenceA reference to an object. Languages other than Java use term's such as address or pointer.
object serializationThe writing of an object's contents in such a way that its state can be restored, either at a later time, or within a different process.
object-oriented designA software design method that models the characteristics of abstract or real objects using classes and objects.
object-oriented languageProgramming languages such as C++ and Java that allow the solution to a problem to be expressed in terms of objects which belong to classes.
octalNumber representation in base 8. In base 8, only the digits 0 to 7 are used. Digit positions represent successive powers of 8.
octal character constantA character constant in the form \ddd, where each d is an octal digit. This may be used for characters with a Unicode value in the range 0-255.
offsetYou offset an options or futures position by taking a second position in a contract with identical terms, buying if you sold initially or selling if you…
one-linerAn entire computer program crammed into one line of text.
one-way messagingA method of transmitting messages without having to block until a response is received.
open source softwarePrograms for which the source code is freely available and freely redistributable, with no commercial strings attached.
operandAn operand is an argument of an operator. Expressions involve combinations of operators and operands.
operating systemSoftware which directs the overall activity of a computer (e.g. MS-DOS , Windows , Linux , etcetera).
operatorA prokaryotic regulatory element that interacts with a repressor to control the transcription of adjacent structural genes.
operator overloadingA kind of "overloading" that you can do on built-in operators to make them work on objects as if the objects were ordinary scalar values, but with the…
optional packageAn optional package is a set of Java ME APIs providing services in a specific area, such as database access or multimedia.
optional packagesThe set or sets of APIs in a Java platform edition which are available with and may be supported in a compatible implementation.
optionsContracts which give the holder the right to buy (call options) or sell (put option) a fixed amount of a certain stock at a specified price within a…
ORBAn often translucent, circular anomaly (or “ball of light”) seen in photography -- and sometimes with the naked eye -- that may be, depending on your…
OS principalA principal native to the operating system on which the J2EE platform is executing.
OTA (Over The Air)Over The Air (OTA) refers to any wireless networking technology.
out of scopeA variable is in scope as long as the program's flow of control is within the variable's defining block. Otherwise, it is out of scope.
out-of-bounds valueA redundant value used to indicate that a different action from the norm is required at some point.
overloadingUsing one identifier to refer to multiple items in the same scope. In the Java programming language, you can overload methods but not variables or…
overridingProviding a different implementation of a method in a subclass of the class that originally defined the method.
overriding for breadthA form of method overriding in which the sub class version of a method implements its own behavior within the context of the attributes and behavior of…
overriding for chainingA form of method overriding in which the sub class version of a method checks to see whether it can respond to the message on its own and only calls the…
overriding for restrictionA form of method overriding in which the sub class version of a method calls the super class version first of all and then uses or manipulates the result…
OwnerThe only security principal who has an inherent right to allow or deny permission to access an object.
packageA group of files that modify Windows features. Package types include service packs, security updates, language packs, and hotfixes.
package declarationA declaration used to name a package. This must be the first item in a source file, preceding any import statements. For instance, package java.lang;
parsed entityA general entity that contains XML and therefore is parsed when inserted into the XML document, as opposed to an unparsed entity.
parserA module that reads in XML data from an input source and breaks it into chunks so that your program knows when it is working with a tag, an attribute, or…
parsingUsually applied to the action of a compiler in analyzing a program source file for syntax errors.
PassivationA chemical reaction that eliminates the detrimental effect of electrically reactive atoms on a photovoltaic cell's surface.
patchA downloadable update that fixes bugs, improves stability and introduces new features to a program.
pathThe hierarchical description of where a directory, folder, or file is located on a computer or network.
pathnameThe path to a file or directory located on a disk. Pathnames are always specific to the computer operating system.
patternCan describe where active fish are holding, or what techniques are working to catch fish, especially larger fish.
Pattern MatchingA generic term that describes any process that compares one files content with another files content.
PCS (Personal Communications Service)Personal Communications Service (PCS) is a suite of second-generation, digitally modulated mobile-communications interfaces that includes TDMA, CDMA, and…
PDAP (Personal Digital Assistant Profile)The Personal Digital Assistant Profile (PDAP) is a Java ME profile specification designed for small platforms such as PalmOS devices.
PDCP (Parallel and Distributed Computing Practices)Parallel and Distributed Computing Practices (PDCP) are often used to describe computer systems that are spread over many devices on a network (wired or…