AAA - Authentication, Authorization, and Accounting - A security framework used in computer systems to control access to resources, authenticate users, and track system activities., AC - Alternating Current - An electric current that periodically reverses direction, typically used in household electricity supply., ACL - Access Control List - A list of permissions attached to an object, such as a file, folder, or network resource, that specifies which users or system processes are granted access to that object and what operations they are allowed to perform., ADF - Automatic Document Feeder - A feature of a scanner or copier that allows multiple pages to be scanned or copied automatically without the need for manual intervention., AES - Advanced Encryption Standard - A widely used encryption algorithm designed to secure sensitive data by encrypting it with a symmetric key cipher., BYOD - Bring Your Own Device - A policy that allows employees to use their personal devices, such as smartphones, tablets, and laptops, for work-related tasks and accessing company resources., CAD - Computer-Aided Design - The use of computer software to assist in the creation, modification, analysis, or optimization of a design., CAPTCHA - Completely Automated Public Turing test to tell Computers and Humans Apart - A type of challenge-response test used in computing to determine whether the user is human or a bot., CD - Compact Disc - A digital optical disc storage format used for storing and playing back audio, video, and other data., CDFS - Compact Disc File System - The file system used by compact discs (CDs) to organize and store data. CDFS is a read-only file system designed specifically for CDs and other optical discs., ARP - Address Resolution Protocol - A communication protocol used to map IP addresses to MAC addresses on a local network., ATM - Asynchronous Transfer Mode - A high-speed networking technology that uses fixed-size cells to transmit data over asynchronous networks., ATX - Advanced Technology eXtended - A motherboard form factor specification developed by Intel, commonly used in desktop computers., DMA - Direct Memory Access - A feature of computer systems that allows hardware devices to transfer data to and from the computer's memory without involving the CPU., DRM - Digital Rights Management - A technology used to protect digital content from unauthorized copying and distribution., EMI - Electromagnetic Interference - Interference caused by electromagnetic radiation emitted by electronic devices, which can disrupt the operation of nearby equipment., ESD - Electrostatic Discharge - The sudden flow of electricity between two electrically charged objects caused by contact, electrical short, or dielectric breakdown. ESD can damage electronic components and devices if not properly controlled., GSM - Global System for Mobile Communications - A standard for digital cellular networks used for mobile phones and data communication., GUI - Graphical User Interface - A type of user interface that allows users to interact with electronic devices using graphical icons and visual indicators rather than text-based commands., GUID - Globally Unique Identifier - A unique reference number used in computer systems to identify resources, such as files, documents, or objects., I/O - Input/Output - Refers to the communication between an information processing system, such as a computer, and the outside world, such as users or other systems., NAC - Network Access Control - A security approach that regulates access to network resources based on predefined policies and the security posture of devices attempting to connect to the network., NetBIOS - Network Basic Input/Output System - A networking protocol suite used for communication between devices on a local area network (LAN), particularly in older Windows-based networks., NetBT - NetBIOS over TCP/IP - A protocol that enables NetBIOS communication over TCP/IP networks, allowing NetBIOS-based applications to function in modern TCP/IP-based networks., OCR - Optical Character Recognition - A technology converting scanned text images into editable, machine-readable text., OLED - Organic Light-Emitting Diode - A display technology using organic compounds to produce light in response to electric current, offering vivid colors and high contrast ratios., SCP - Secure Copy Protocol - A network protocol for securely transferring files between a local and remote host or between two remote hosts., SIM - Subscriber Identity Module - A small card used in mobile devices to authenticate the user on a cellular network and store personal data such as contacts and messages., SIMM - Single In-line Memory Module - A type of memory module used in older computer systems to store data and program instructions temporarily while the computer is powered on., TN - Twisted Nematic - A type of liquid crystal display (LCD) technology commonly used in computer monitors, televisions, and mobile device screens., UAC - User Account Control - A security feature in Windows operating systems that helps prevent unauthorized changes to the system by notifying users when a program attempts to make changes that require administrative privileges., UTM - Unified Threat Management - A comprehensive security solution that integrates multiple security features, such as firewall, antivirus, intrusion detection, and content filtering, into a single device or software package., VA - Vertical Alignment - A type of liquid crystal display (LCD) technology used in computer monitors and televisions to improve color reproduction, contrast ratio, and viewing angles compared to other LCD technologies., VM - Virtual Machine - An emulation of a computer system that runs as software on a physical computer and allows multiple operating systems to run simultaneously on the same hardware., WISP - Wireless Internet Service Provider - A company that provides wireless broadband internet access to customers, typically using radio waves to transmit data between a customer's location and the provider's network., WLAN - Wireless Local Area Network - A type of local area network (LAN) that uses wireless communication technology, such as Wi-Fi, to connect devices within a limited area, such as a home, office, or campus., SMS - Short Message Service - Allows users to send and receive text messages on mobile devices., SNTP - Simple Network Time Protocol - Synchronizes clocks of computer systems over a network., SRAM - Static Random Access Memory - Stores data without refreshing and is faster than DRAM., SSID - Service Set Identifier - Unique name for identifying Wi-Fi networks., TCP/IP - Transmission Control Protocol/Internet Protocol - Standard for internet communication., WMN - Wireless Mesh Network - Self-configuring network formed by interconnected nodes., WWAN - Wireless Wide Area Network - Provides internet connectivity over a large area using cellular technology., LED - Light-Emitting Diode - Semiconductor device that emits light when current flows through it., LCD - Liquid Crystal Display - Flat-panel display technology using liquid crystals to produce images., ISP - Internet Service Provider - Company that provides access to the internet., ITX - Information Technology eXtended - Form factor for computer motherboards., PAN - Personal Area Network - Network for connecting devices within a small area, typically centered around an individual., PC - Personal Computer - General term for a computer designed for individual use., PCL - Printer Control Language - Page description language used for printing documents., RMM - Remote Monitoring and Management - Software for monitoring and managing IT systems remotely., PRL - Preferred Roaming List - Database in a mobile device that prioritizes preferred networks for roaming, RF - Radio Frequency - Electromagnetic frequency used for wireless communication., GPS - Global Positioning System - Satellite-based navigation system providing location and time information., HAV - Hardware-Assisted Virtualization - Technology that improves performance and security of virtualized environments.,

CompTIA A+ Core 1 (220-1101) Acronym List (Part 2)

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