Copyright (c) 2025 MindMesh Academy. All rights reserved. This content is proprietary and may not be reproduced or distributed without permission.

Phase 5: Glossary

This section is based on the official acronym list from the CompTIA A+ Core 1 (220-1201) exam objectives document.

  • AAA: Authentication, Authorization, and Accounting
  • AC: Alternating Current
  • ADF: Automatic Document Feeder
  • AP: Access Point
  • APIPA: Automatic Private IP Addressing
  • ARM: Advanced RISC Machine
  • ATX: Advanced Technology Extended
  • BIOS: Basic Input/Output System
  • BYOD: Bring Your Own Device
  • CIFS: Common Internet File System
  • CPU: Central Processing Unit
  • DDR: Double Data Rate
  • DHCP: Dynamic Host Configuration Protocol
  • DIMM: Dual In-line Memory Module
  • DNS: Domain Name System
  • DSL: Digital Subscriber Line
  • DVI: Digital Visual Interface
  • ECC: Error-Correcting Code
  • eSIM: Embedded Subscriber Identity Module
  • GPS: Global Positioning System
  • HDD: Hard Disk Drive
  • HDMI: High-definition Multimedia Interface
  • IaaS: Infrastructure as a Service
  • IMAP: Internet Mail Access Protocol
  • IOPS: Input/Output Operations Per Second
  • IoT: Internet of Things
  • IP: Internet Protocol
  • IPS: In-plane Switching
  • ITX: Information Technology eXtended
  • LAN: Local Area Network
  • LCD: Liquid Crystal Display
  • LDAP: Lightweight Directory Access Protocol
  • MAC: Media Access Control
  • MDM: Mobile Device Management
  • NFC: Near-field Communication
  • NIC: Network Interface Card
  • NVMe: Non-volatile Memory Express
  • OLED: Organic Light-emitting Diode
  • PaaS: Platform as a Service
  • PAN: Personal Area Network
  • PCIe: Peripheral Component Interconnect Express
  • PIN: Personal Identification Number
  • PoE: Power over Ethernet
  • POP3: Post Office Protocol 3
  • POST: Power-on Self-test
  • PSU: Power Supply Unit
  • RAID: Redundant Array of Independent Disks
  • RAM: Random-access Memory
  • RDP: Remote Desktop Protocol
  • RFID: Radio-frequency Identification
  • RJ-11: Registered Jack 11
  • RJ-45: Registered Jack 45
  • SaaS: Software as a Service
  • SATA: Serial Advanced Technology Attachment
  • SIM: Subscriber Identity Module
  • S.M.A.R.T.: Self-monitoring Analysis and Reporting Technology
  • SMB: Server Message Block
  • SMTP: Simple Mail Transfer Protocol
  • SODIMM: Small Outline Dual In-line Memory Module
  • SOHO: Small Office/Home Office
  • SSD: Solid-state Drive
  • SSH: Secure Shell
  • SSID: Service Set Identifier
  • TCP: Transmission Control Protocol
  • TN: Twisted Nematic
  • TPM: Trusted Platform Module
  • UDP: User Datagram Protocol
  • UEFI: Unified Extensible Firmware Interface
  • UPS: Uninterruptible Power Supply
  • USB: Universal Serial Bus
  • UTM: Unified Threat Management
  • VDI: Virtual Desktop Infrastructure
  • VGA: Video Graphics Array
  • VLAN: Virtual LAN
  • VM: Virtual Machine
  • VoIP: Voice over Internet Protocol
  • VPN: Virtual Private Network
  • WAN: Wide Area Network
  • WLAN: Wireless LAN
  • WPA: Wi-Fi Protected Access
  • WPS: Wi-Fi Protected Setup