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Some inportant definitions (Starting with “A” alphabet)
Abstraction: In computing, abstraction refers to the process of hiding complex details and presenting a simplified view of something, allowing for easier understanding and management.Accent: In user interface design and accessibility, accent refers to the visual or auditory emphasis placed on certain elements to highlight their importance or status.Accessibility: Accessibility refers to the design of products, devices, services, or environments that are usable by people with disabilities, ensuring equal access to information and functionality.Accessibility tree: An accessibility tree is a hierarchical representation of the accessible elements in a user interface, providing assistive technologies with information about the structure and properties of these elements.Accessible description: An accessible description provides additional textual information that describes an element in a way that is accessible to users who may not be able to perceive the element directly (e.g., through screen readers).Accessible name: An accessible name is a label or text associated with an element in a user interface, used by assistive technologies to identify and describe the element to users.Adobe Flash: Adobe Flash (formerly Macromedia Flash) was a multimedia platform used to create animations, games, and interactive applications. It has been largely phased out in favor of modern web technologies.Advance measure: In typography and typesetting, an advance measure refers to the width of a glyph including any space or kerning adjustments, essential for proper positioning of characters.Ajax: Ajax (Asynchronous JavaScript and XML) is a technique used in web development to create interactive and dynamic user interfaces by exchanging small amounts of data with the server asynchronously, without reloading the entire page.Algorithm: An algorithm is a set of well-defined instructions or rules designed to solve a specific problem or perform a particular task, often used in computer science and mathematics.Alignment container: In CSS (Cascading Style Sheets), an alignment container is an element that serves as a reference for the alignment of its children's elements, particularly in relation to layout properties like flexbox and grid.Alignment subject: In CSS, an alignment subject is an element whose alignment is influenced by its parent alignment container, typically used in the context of flexbox and grid layouts.Alpha (alpha channel): In digital imaging and computer graphics, alpha refers to the degree of transparency or opacity of a pixel. An alpha channel stores this information, allowing for precise control over transparency levels.ALPN: Application-Layer Protocol Negotiation (ALPN) is a TLS extension that allows the client and server to agree on which application-layer protocol (such as HTTP/2 or HTTP/3) to use during a TLS handshake.API: An Application Programming Interface (API) is a set of protocols, routines, and tools for building software applications. It defines how software components should interact, facilitating integration and communication between different software systems.Apple Safari: Safari is a web browser developed by Apple Inc., known for its integration with Apple’s ecosystem and its adherence to web standards.Application Context: In software development, the application context refers to the global environment in which an application runs, including configuration settings, resources, and services available to the application.Argument: In programming and computing, an argument refers to a value or variable passed to a function, procedure, or command, providing input or specifying conditions for execution.ARIA: Accessible Rich Internet Applications (ARIA) is a set of attributes that enhance the accessibility of web content and applications for people with disabilities, providing additional semantics and interaction cues to assistive technologies.ARPA: Advanced Research Projects Agency (ARPA) was an agency of the United States Department of Defense, responsible for the development of early computer networking technologies, including the precursor to the Internet.ARPANET: ARPANET was the first operational packet-switching network and the precursor to the modern Internet, developed by ARPA in the late 1960s and early 1970s.Array: In programming, an array is a data structure that stores a collection of elements, typically of the same type, identified by an index or key.ASCII: ASCII (American Standard Code for Information Interchange) is a character encoding standard for electronic communication, defining numeric codes for letters, numbers, punctuation marks, and control characters.Aspect ratio: In digital imaging and display technology, aspect ratio refers to the proportional relationship between the width and height of an image or screen.Asynchronous: Asynchronous refers to operations or processes that do not occur simultaneously or in real-time synchronization, allowing tasks to proceed independently and asynchronously.ATAG: Authoring Tool Accessibility Guidelines (ATAG) are guidelines developed by the W3C to ensure that web authoring tools are accessible to people with disabilities, promoting the creation of accessible web content.Attribute: In markup languages and programming, an attribute provides additional information about an element or modifies its behavior, specified within tags to define properties or characteristics.Authentication: Authentication is the process of verifying the identity of a user, device, or system entity to ensure that they are who they claim to be.
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