IT Glossary
Key Terms To Know In The IT Industry
Oscillation
In computing, often refers to the repetitive variation, typically in time, of some measure about a central value or between two or more different states. Used in various contexts, including signal processing and computing performance.
You will find this term commonly used in Hardware, Signal Processing
OSCP (Offensive Security Certified Professional)
Demonstrates technical skills and understanding of the penetration testing process and lifecycle.
You will find this term commonly used in Ethical Hacking, Cybersecurity
OSI Model
The Open Systems Interconnection model is a conceptual framework used to understand network communication protocols.
You will find this term commonly used in Networking, General IT, Security
Out-of-Band Management
The management and monitoring of IT infrastructure using a separate channel or network from the primary data path.
You will find this term commonly used in Network Management, Security, General IT
Out-of-Box Experience (OOBE)
The experience a consumer has when first using a new product, especially in terms of ease of setting up and starting the product. In IT, it often relates to the initial setup process of software or hardware.
You will find this term commonly used in User Experience, Hardware
Out-of-Home (OOH) Advertising
Advertising that reaches consumers while they are outside their homes, which increasingly incorporates digital and interactive technologies.
You will find this term commonly used in Marketing, Digital Signage
Out-of-the-Box
Refers to software or hardware products that are ready to use immediately without requiring additional configuration or customization.
You will find this term commonly used in Software Deployment, Hardware Installation, General IT
Outbound Firewall Rules
Firewall rules that control the traffic going out from a network or device to the internet or another network, typically to prevent unauthorized data exfiltration or to block unwanted outgoing traffic.
You will find this term commonly used in Security, Networking
Outlier Analysis
The process of identifying and analyzing data points that deviate significantly from the norm or expected pattern.
You will find this term commonly used in Data Analysis, Machine Learning, General IT
Outlier Detection
The process of identifying data points that deviate significantly from the rest of the dataset.
You will find this term commonly used in Data Analysis, Machine Learning, AI
Output Device
Hardware component that receives data from a computer and displays or otherwise conveys it to the user.
You will find this term commonly used in Hardware, General IT, User Interface
Output Management
The process of managing the generation, distribution, and archiving of documents and reports produced by an organization's IT systems.
You will find this term commonly used in Document Management, Workflow Automation, General IT
Output Stream
In computing, a stream that data is written to, typically moving data from a program to a device or file.
You will find this term commonly used in Programming, IO Operations
Outsourced IT Support
IT support services provided by external companies or individuals, often on a subscription or contract basis.
You will find this term commonly used in IT Support, Outsourcing, General IT
Outsourcing
The practice of hiring external vendors to perform tasks or provide services traditionally handled by in-house staff.
You will find this term commonly used in General IT
Over Provisioning
The practice of providing more resources or capacity than is necessary for a particular requirement to ensure performance can meet unexpected demand.
You will find this term commonly used in Cloud Computing, Storage
Over-The-Air (OTA) Broadcasting
Broadcasting of television or radio signals over the airwaves, received by antennas on consumer devices.
You will find this term commonly used in Broadcasting, Media, General IT
Over-the-Air (OTA) Updates
The process of remotely updating software or firmware on devices without requiring physical access.
You will find this term commonly used in IoT, Software Development, General IT
Over-the-Air Programming (OTAP)
The method of distributing new software, configuration settings, and even updating encryption keys to devices like mobile phones, set-top boxes, or secure voice communication equipment over a wireless network.
You will find this term commonly used in Telecommunications, Security
Over-the-Counter (OTC)
Securities traded directly between parties, often outside of formal exchanges, typically involving less regulation and oversight.
You will find this term commonly used in Finance, Trading, General IT
Over-The-Network (OTN)
Refers to processes or actions taken over a network, often involving the downloading or uploading of data or software updates without the need for physical media.
You will find this term commonly used in Networking, Software Maintenance
Over-the-Top (OTT)
Content delivery services that bypass traditional distribution channels, delivering content directly to users over the internet.
You will find this term commonly used in Media Streaming, Entertainment, General IT
Over-the-Top (OTT) Content
Digital content, such as streaming video, audio, or gaming services, delivered directly to users over the internet.
You will find this term commonly used in Media Streaming, Entertainment, General IT
Over-the-Top (OTT) Messaging
Messaging services that deliver messages over the internet, bypassing traditional SMS or MMS messaging services provided by mobile carriers.
You will find this term commonly used in Communication, Messaging, General IT
Over-the-Top Application (OTT)
An app or service that provides a product over the Internet and bypasses traditional distribution, examples include streaming services like Netflix and Hulu.
You will find this term commonly used in Networking, Digital Media
Over-The-Top Platform (OTT)
A term used to refer to content providers that distribute streaming media as a standalone product directly to viewers over the Internet, bypassing telecommunications, multichannel television, and broadcast television platforms.
You will find this term commonly used in Online Streaming, Media
Over-the-Wire (OTW)
Communications or data transfers that occur over physical wires or cables, as opposed to wireless transmissions.
You will find this term commonly used in Networking, Telecommunications, General IT
Overclocking
The practice of running a computer component at a higher clock rate than it was designed for, to achieve better performance.
You will find this term commonly used in Hardware, General IT, Gaming
Overfitting
A machine learning phenomenon where a model learns to fit the training data too closely, capturing noise or random fluctuations rather than the underlying pattern.
You will find this term commonly used in Machine Learning, Data Science, AI
Overflow Error
An error that occurs when a computer attempts to handle a number that is outside of the range of values it can represent with a given number of bits.
You will find this term commonly used in Software Development, Programming
Overhead
The additional resources (time, memory, etc.) consumed by a system beyond the minimum required to perform its function.
You will find this term commonly used in Performance Optimization, Systems Administration, General IT
Overhead Projector
A device that projects images or text onto a screen or wall for large group viewing, commonly used in presentations and classrooms.
You will find this term commonly used in Presentation, Education, General IT
Overlay
In computing, a method of adding additional information or visuals on top of a primary set of data or image. This can refer to graphical overlays on a video or informational overlays in a software application.
You will find this term commonly used in User Interface Design, Software Development
Overlay File System
A type of file system that allows the layering of files and directories on top of existing file systems, often used in containerized environments.
You will find this term commonly used in Storage, Virtualization
Overlay Network
A computer network that is built on top of another network. Nodes in the overlay network are connected by virtual or logical links, each of which corresponds to a path in the underlying network.
You will find this term commonly used in Networking
Overlay Networks
Networks that are built on top of one or more existing network layers to introduce new functionalities or enhance existing ones without altering the underlying network.
You will find this term commonly used in Networking, Internet Technology
Overlay Protocols
Protocols designed to operate on top of other network protocols to enhance functionalities, such as creating distributed networks over the internet without modifying underlying IP protocols.
You will find this term commonly used in Networking, Protocol Design
Oversampling
The process of sampling a signal with a sampling frequency significantly higher than the Nyquist rate to improve the quality of signal processing and data conversion.
You will find this term commonly used in Digital Signal Processing
Oversubscription
In networking and computing, the practice of selling or providing more capacity to multiple customers than exists physically, betting not all resources will be used at the same time.
You will find this term commonly used in Networking, Cloud Computing
OWASP Top Ten
A regularly updated report outlining the ten most critical web application security risks, helping developers, and IT professionals to ensure the security of their applications and services.
You will find this term commonly used in Cybersecurity, Web Application Security
OWIN (Open Web Interface for .NET)
An open specification for an interface between .NET web applications and web servers. It decouples the web application from the server, making .NET web applications more modular.
You will find this term commonly used in Web Development, .NET Framework
Ownership Controls
In IT, mechanisms or policies put in place to ensure that data or resources are controlled by a specified entity or individual, addressing access, modification, and distribution.
You will find this term commonly used in Security, Data Management
Ownership Management
In IT, it refers to the process and policies for managing and tracking the ownership of digital assets, resources, or services within an organization.
You will find this term commonly used in IT Management, Security
Ownership Verification
The process of verifying that a user or system has the rights and permissions to access, modify, or manage a digital resource or data, crucial for security and access control systems.
You will find this term commonly used in Security, Data Management
Career Path?
Leadership Mastery: The Executive Information Security Manager
$51.60
Entry Level Information Security Specialist Career Path
$51.60
Certified Ethical Hacker Career Path
$51.60
AWS Cloud Practitioner Career Path
$51.60
Network Administrator Career Path
$51.60
Comprehensive IT User Support Specialist Training: Accelerate Your Career
$51.60 – $169.00
Data Analyst Career Path
$51.60
Google DevOps Engineer Career Path
$51.60
Kubernetes Certification: The Ultimate Certification and Career Advancement Series
$51.60
Web Designer Career Path
$51.60
AZ-104 Learning Path : Become an Azure Administrator
$51.60 – $169.00
Network Security Analyst Career Path
$51.60
