IT Glossary
Key Terms To Know In The IT Industry
Lexical Analyzer
A program or part of a program that performs lexical analysis. It processes an input sequence of characters and produces a sequence of symbols called lexical tokens. It's a fundamental part of compilers and interpreters.
You will find this term commonly used in Programming, Compiler Design
Lexical Closure
A function that retains access to variables from its enclosing scope even after the outer function has completed execution. Closures are powerful features of functional programming languages and enable techniques like data encapsulation.
You will find this term commonly used in Programming
Lexical Scope
A type of scope that defines how variable names are resolved in nested functions: outer variables can be accessed by inner functions.
You will find this term commonly used in Programming
Lexical Scoping
A convention determining how variable names are resolved in nested functions: inner functions contain the scope of their enclosing (outer) functions. It's crucial for understanding the visibility and lifetime of variables in programming languages.
You will find this term commonly used in Programming
Lexical Variable
A variable defined in a lexical scope, which is a region of a program where the variable is defined and beyond which the variable cannot be accessed. Lexical variables help manage variable visibility and lifetimes in block-structured programming languages.
You will find this term commonly used in Programming
Lexicon
In natural language processing, a lexicon is a dictionary's language data that includes its vocabulary and information regarding how those words are used.
You will find this term commonly used in Natural Language Processing
Library
A library is a collection of precompiled routines, functions, and classes that can be used to develop software applications.
You will find this term commonly used in Programming
Library (Computing)
A collection of non-volatile resources used by computer programs, often for software development.
You will find this term commonly used in General IT, Software Development
Library Management System (LMS)
Software used to manage the operations of a library, including cataloging, search, circulation, and inventory management.
You will find this term commonly used in Information Systems
Library Science
The study of how information resources are organized, categorized, stored, retrieved, and disseminated. It includes the management of digital information and the development of information systems and services.
You will find this term commonly used in Information Science, Data Management
Library Versioning
The practice of assigning unique versions to software libraries to indicate changes or updates. This helps in dependency management, ensuring compatibility between different software components and facilitating effective maintenance and updates.
You will find this term commonly used in Software Development
License
A license is a legal agreement that grants permission to use a software product under specified terms and conditions.
You will find this term commonly used in General IT
License Auditing
The process of conducting a systematic review of software licenses within an organization to ensure compliance with software licenses agreements. This includes verifying that the number of installations does not exceed the number of licenses purchased.
You will find this term commonly used in IT Management, Compliance
License Compliance
The adherence to the terms and conditions laid out in software licenses. This includes proper use, distribution, and modification of software, often reviewed during audits to avoid legal and security issues.
You will find this term commonly used in Software Development, Legal
License Key
A data string that verifies authorized software product access. This type of software security helps prevent software piracy and gives organizations the ability to control their software.
You will find this term commonly used in Software Development, Security
License Management
License management involves tracking, controlling, and optimizing the usage of software licenses within an organization.
You will find this term commonly used in General IT
Lidar (Light Detection and Ranging)
A surveying method that measures distance to a target by illuminating the target with laser light and measuring the reflected light with a sensor.
You will find this term commonly used in Hardware/Automation
Life Cycle Assessment (LCA)
A technique to assess environmental impacts associated with all the stages of a product's life from raw material extraction through materials processing, manufacture, distribution, use, repair and maintenance, and disposal or recycling.
You will find this term commonly used in Sustainability, IT Management
Lifecycle Hook
In software development, a feature that allows the execution of custom code at certain points within the lifecycle of a component or application, often used in frameworks like Angular or React.
You will find this term commonly used in Software Development
LIFO (Last In, First Out)
LIFO is a method of data storage and retrieval where the last item to be stored is the first one to be retrieved.
You will find this term commonly used in Data Structures
LIFO Buffer (Last In, First Out)
A type of data storage scheme that stores and retrieves data using a last-in, first-out approach.
You will find this term commonly used in Data Structures
Light Field Camera
A camera that captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the direction that the light rays are traveling in space. This technology enables advanced imaging features like refocusing.
You will find this term commonly used in Hardware, Imaging Technology
Light Pen
An input device that allows users to point to displayed objects or draw on a screen by detecting the light. It's historically significant in computer graphics and user interface design, though less common in modern computing environments.
You will find this term commonly used in Human-Computer Interaction
Lightweight
Lightweight refers to software or protocols that consume minimal system resources or bandwidth.
You will find this term commonly used in General IT
Lightweight Cryptography
Cryptographic algorithms and protocols that are designed to be efficient enough to run on resource-constrained devices like RFID tags, sensors, and small IoT devices. It aims to ensure security without overwhelming limited processing capabilities.
You will find this term commonly used in Security, Cryptography
Lightweight Directory Access Protocol (LDAP) Integration
The process of connecting and synchronizing a system or application with an LDAP directory for user and group management. This allows for centralized authentication, authorization, and user management in enterprise environments.
You will find this term commonly used in Security, Systems Administration
Lightweight Process
A thread or execution context that requires fewer resources to create and terminate compared to a traditional heavyweight process. Often used to improve the performance of applications by minimizing system resource usage.
You will find this term commonly used in Operating Systems, Software Development
Lightweight Protocol
A lightweight protocol is a network protocol designed to minimize overhead and resource usage, often used in IoT devices or constrained environments.
You will find this term commonly used in Networking
Line Coding
A method of converting digital data to digital signals. Line coding involves the representation of a digital signal on a transmission line. This process is fundamental in data communication as it affects signal integrity and efficiency.
You will find this term commonly used in Telecommunications, Networking
Line Conditioning
A process used in telecommunications to improve the quality of the line or signal, including noise reduction and error correction techniques.
You will find this term commonly used in Networking
Line of Code (LOC)
Line of code (LOC) is a metric used to measure the size or complexity of a software program by counting the number of lines of code.
You will find this term commonly used in Software Development
Linear Programming
A mathematical method for determining a way to achieve the best outcome in a given mathematical model for some list of requirements represented as linear relationships.
You will find this term commonly used in Operations Research/Computer Science
Linear Regression
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to the observed data.
You will find this term commonly used in Data Analysis
Linear Search
A method for finding a target value within a list that sequentially checks each element of the list until a match is found or the whole list has been searched.
You will find this term commonly used in Algorithms, Programming
Linearizability
A consistency condition for distributed systems that ensures global operations appear to occur instantaneously at some point between their start and end times. It's key for understanding the correctness of concurrent algorithms and systems.
You will find this term commonly used in Distributed Systems
Linguistic Variable
A variable whose values are words or sentences in natural or artificial language.
You will find this term commonly used in AI/Fuzzy Logic
Link
A link is a communication pathway that connects two or more devices in a network.
You will find this term commonly used in Networking
Link Aggregation
A method of combining multiple network connections in parallel to increase throughput and provide redundancy in case one link fails.
You will find this term commonly used in Networking
Link Encryption
Link encryption is the process of encrypting data as it travels over a network link to prevent unauthorized access.
You will find this term commonly used in Security
Link Failure
Link failure occurs when a network connection or communication link becomes unavailable or non-functional.
You will find this term commonly used in Networking
Link Farm
A group of websites that all hyperlink to every other site in the group to increase search engine rankings. Considered a form of spamdexing.
You will find this term commonly used in Cybersecurity/SEO
Link Farming
The practice of creating a network of websites that link to each other, often with the sole purpose of increasing the number of inbound links to a particular site to manipulate search engine rankings. It's considered a black hat SEO technique.
You will find this term commonly used in Web Development, SEO
Link Layer
The link layer is the lowest layer in the OSI model responsible for the physical transmission of data between nodes on a network.
You will find this term commonly used in Networking
Link Popularity
A measure used by search engines to determine the relevance and importance of websites, based on the number of inbound links.
You will find this term commonly used in SEO
Link Prediction
A problem in network theory where the goal is to predict the formation of new links or the disappearance of existing links in networks. It's used in social network analysis, bioinformatics, and recommendation systems.
You will find this term commonly used in Data Analysis, Machine Learning
Link Quality Monitoring
Link quality monitoring is the process of assessing the performance and reliability of network links based on factors such as packet loss, latency, and jitter.
You will find this term commonly used in Networking
Link Rot
The process by which hyperlinks on the internet point to web pages, servers, or other resources that have become permanently unavailable over time. Link rot is a significant issue for maintaining the reliability and integrity of digital documents and references.
You will find this term commonly used in Web Development, Digital Archiving
Link Speed
Link speed refers to the maximum data transfer rate supported by a network connection or interface.
You will find this term commonly used in Networking
Link State Advertisement (LSA)
A type of network protocol message in OSPF used to inform other routers about the network topology.
You will find this term commonly used in Networking
Link-local Address
A link-local address is an IP address assigned to a network interface for communication within a local network segment.
You will find this term commonly used in Networking
Career Path?
Network Security Analyst Career Path
$51.60
AWS Cloud Practitioner Career Path
$51.60
Kubernetes Certification: The Ultimate Certification and Career Advancement Series
$51.60
Information Security Analyst Career Path
$51.60
ICD 9, ICD 10, ICD 11 : Medical Coding Specialist Career Path
$39.00
Google DevOps Engineer Career Path
$51.60
Data Analyst Career Path
$51.60
IT Project Manager Career Path
$51.60
Leadership Mastery: The Executive Information Security Manager
$51.60
Video Editor Career Path
$51.60
Web Designer Career Path
$51.60
Certified Ethical Hacker Career Path
$51.60
