CompTIA A+ Acronym List

AAA

Authentication, Authorization, and Accounting

AC

Alternating Current

ACL

Access Control List

ADF

Automatic Document Feeder

AES

Advanced Encryption Standard

AP

Access Point

APFS

Apple File System

APIPA

Automatic Private Internet Protocol Addressing

APK

Android Package

ARM

Advanced RISC (Reduced Instruction Set Computer) Machine

ARP

Address Resolution Protocol

ATA

Advanced Technology Attachment

ATM

Asynchronous Transfer Mode

ATX

Advanced Technology Extended

AUP

Acceptable Use Policy

BIOS

Basic Input/Output System

BSOD

Blue Screen of Death

BYOD

Bring Your Own Device

CAPTCHA

Completely Automated Public Turing Test To Tell Computers and Humans Apart

CD

compact disc

CDFS

Compact Disc File System

CDMA

Code-Division Multiple Access

CERT

Computer Emergency Response Team

CIFS

Common Internet File System

CMD

Command Prompt

CMOS

complementary metal-oxide semiconductor

CPU

Central Processing Unit

CRL

Certificate Revocation List

DC

direct current

DDoS

Distributed Denial of Service

DDR

Double Data Rate

DHCP

Dynamic Host Configuration Protocol

DIMM

dual inline memory module

DKIM

DomainKeys Identified Mail

DMA

Direct Memory Access

DMARC

Domain-based Message Authentication, Reporting, and Conformance

DNS

Domain Name System

DoS

Denial of Service

DRAM

dynamic random access memory

DRM

Digital Rights Management

DSL

Digital Subscriber Line

DVI

Digital Visual Interface

DVI-D

Digital Visual Interface-Digital

ECC

error correcting code

EFS

Encrypting File System

EMI

Electromagnetic Interference

EOL

end of life

eSATA

External Serial Advanced Technology Attachment

ESD

Electrostatic Discharge

EULA

End User License Agreement

exFAT

Extensible File Allocation Table

ext

Extended File System

FAT

File Allocation Table

FAT12

12-bit file allocation table

FAT16

16-bit file allocation table

FAT32

32-bit file allocation table

FSB

Front Side Bus

FTP

File Transfer Protocol

GFS

Grandfather-father-son

GPS

Global Positioning System

GPT

GUID (Globally Unique Identifier) Partition Table

GPU

Graphics Processing Unit

GSM

Global System for Mobile Communications

GUI

Graphical User Interface

GUID

Globally Unique Identifier

HAL

hardware abstraction layer

HAV

Hardware Assisted Virtualization

HCL

Hardware Compatibility List

HDCP

High-Bandwidth Digital Content Protection

HDD

Hard Disk Drive

HDMI

High Definition Multimedia Interface

HSM

Hardware Security Module

HTML

Hypertext Markup Language

HTTP

Hypertext Transfer Protocol

I/O

input and output

IaaS

Infrastructure as a Service

ICR

intelligent character recognition

IDE

Integrated Drive Electronics

IDS

Intrusion Detection System

IEEE

Institute of Electrical and Electronics Engineers

IMAP

Internet Mail Access Protocol

IOPS

Input/Output Operations Per Second

IoT

Internet of Things

IP

Internet Protocol

IPS

Intrusion Prevention System

IPS (display tech)

in-plane switching

IPSec

Internet Protocol Security

IR

infrared

IrDA

Infrared Data Association

IRP

Incident Response Plan

ISO

International Organization for Standardization

ISP

Internet Service Provider

ITX

Information Technology Extended

KB

knowledge base

KVM

Keyboard Video Mouse

LAN

Local Area Network

LC

Lucent Connector

LCD

Liquid Crystal Display

LDAP

Lightweight Directory Access Protocol

LED

Light Emitting Diode