As mentioned in the CompTia A+ Objectives: "The following is a list of acronyms which appear on the CompTIA A+ exams. Candidates are encouraged
to review the complete list and attain a working knowledge of all listed acronyms as a part of a
comprehensive exam preparation program."
Terms : Hide Images
| 858175666 | AC | alternating current | 0 | |
| 858175667 | ACL | access control list | 1 | |
| 858175668 | ACPI | advanced configuration power interface | 2 | |
| 858175669 | ACT | activity | 3 | |
| 858175670 | ADSL | asymmetrical digital subscriber line | 4 | |
| 858175671 | AGP | accelerated graphics port | 5 | |
| 858175672 | AHCI | Advanced host controller interface | 6 | |
| 858175673 | AMD | advanced micro devices | 7 | |
| 858175674 | APIPA | automatic private internet protocol addressing | 8 | |
| 858175675 | APM | advanced power management | 9 | |
| 858175676 | ARP | address resolution protocol | 10 | |
| 858175677 | ASR | automated system recovery | 11 | |
| 858175678 | ATA | advanced technology attachment | 12 | |
| 858175679 | ATAPI | advanced technology attachment packet interface | 13 | |
| 858175680 | ATM | asynchronous transfer mode | 14 | |
| 858175681 | ATX | advanced technology extended | 15 | |
| 858175682 | A/V | Audio Video | 16 | |
| 858175683 | BIOS | basic input/output system | 17 | |
| 858175684 | BNC | Bayonet-Neill-Concelman or British Naval Connector | 18 | |
| 858175685 | BTX | balanced technology extended | 19 | |
| 858175686 | CAPTCHA | Completely Automated Public Turing Test To Tell Computers and Humans Apart | 20 | |
| 858175687 | CCFL | Cold Cathode Fluorescent Lamp | 21 | |
| 858175688 | CD | compact disc | 22 | |
| 858175689 | CD-ROM | compact disc-read-only memory | 23 | |
| 858175690 | CD-RW | compact disc-rewritable | 24 | |
| 858175691 | CDFS | compact disc file system | 25 | |
| 858175692 | CFS | Central File System, Common File System, Command File System | 26 | |
| 858175693 | CMOS | complementary metal-oxide semiconductor | 27 | |
| 858175694 | CNR | Communications and Networking Riser | 28 | |
| 858175695 | COMx | communication port (x=port number) | 29 | |
| 858175696 | CPU | central processing unit | 30 | |
| 858175697 | CRIMM | Continuity Rambus Inline Memory Mode | 31 | |
| 858175698 | CRT | cathode-ray tube | 32 | |
| 858175699 | DAC | discretionary access control | 33 | |
| 858175700 | DB-25 | serial communications D-shell connector, 25 pins | 34 | |
| 858175701 | DB-9 | 9 pin D shell connector | 35 | |
| 858175702 | DC | direct current | 36 | |
| 858175703 | DDOS | distributed denial of service | 37 | |
| 858175704 | DDR | double data-rate | 38 | |
| 858175705 | DDR RAM | double data-rate random access memory | 39 | |
| 858175706 | DDR SDRAM | double data-rate synchronous dynamic random access memory | 40 | |
| 858175707 | DFS | distributed file system | 41 | |
| 858175708 | DHCP | dynamic host configuration protocol | 42 | |
| 858175709 | DIMM | dual inline memory module | 43 | |
| 858175710 | DIN | Deutsche Industrie Norm | 44 | |
| 858175711 | DIP | dual inline package | 45 | |
| 858175712 | DLT | digital linear tape | 46 | |
| 858175713 | DLP | digital light processing | 47 | |
| 858175714 | DMA | direct memory access | 48 | |
| 858175715 | DMZ | demilitarized zone | 49 | |
| 858175716 | DNS | domain name service or domain name server | 50 | |
| 858175717 | DOS | denial of service | 51 | |
| 858175718 | DRAM | dynamic random access memory | 52 | |
| 858175719 | DSL | digital subscriber line | 53 | |
| 858175720 | DVD | digital video disc or digital versatile disc | 54 | |
| 858175721 | DVD-RAM | digital video disc-random access memory | 55 | |
| 858175722 | DVD-ROM | digital video disc-read only memory | 56 | |
| 858175723 | DVD-R | digital video disc-recordable | 57 | |
| 858175724 | DVD-RW | digital video disc-rewritable | 58 | |
| 858175725 | DVI | digital visual interface | 59 | |
| 858175726 | ECC | error correction code | 60 | |
| 858175727 | ECP | extended capabilities port | 61 | |
| 858175728 | EEPROM | electrically erasable programmable read-only memory | 62 | |
| 858175729 | EFS | encrypting file system | 63 | |
| 858175730 | EIDE | enhanced integrated drive electronics | 64 | |
| 858175731 | EMI | electromagnetic interference | 65 | |
| 858175732 | EMP | electromagnetic pulse | 66 | |
| 858175733 | EPROM | erasable programmable read-only memory | 67 | |
| 858175734 | EPP | enhanced parallel port | 68 | |
| 858175735 | ERD | emergency repair disk | 69 | |
| 858175736 | ESD | electrostatic discharge | 70 | |
| 858175737 | EVGA | extended video graphics adapter/array | 71 | |
| 858175738 | EVDO | evolution data optimized or evolution data only | 72 | |
| 858175739 | FAT | file allocation table | 73 | |
| 858175740 | FAT12 | 12-bit file allocation table | 74 | |
| 858175741 | FAT16 | 16-bit file allocation table | 75 | |
| 858175742 | FAT32 | 32-bit file allocation table | 76 | |
| 858175743 | FDD | floppy disk drive | 77 | |
| 858175744 | Fn | Function (referring to the function key on a laptop) | 78 | |
| 858175745 | FPM | fast page-mode | 79 | |
| 858175746 | FRU | field replaceable unit | 80 | |
| 858175747 | FSB | Front Side Bus | 81 | |
| 858175748 | FTP | file transfer protocol | 82 | |
| 858175749 | FQDN | fully qualified domain name | 83 | |
| 858175750 | Gb | gigabit | 84 | |
| 858175751 | GB | gigabyte | 85 | |
| 858175752 | GDI | graphics device interface | 86 | |
| 858175753 | GHz | gigahertz | 87 | |
| 858175754 | GUI | graphical user interface | 88 | |
| 858175755 | GPS | global positioning system | 89 | |
| 858175756 | GSM | global system for mobile communications | 90 | |
| 858175757 | HAL | hardware abstraction layer | 91 | |
| 858175758 | HAV | Hardware Assisted Virtualization | 92 | |
| 858175759 | HCL | hardware compatibility list | 93 | |
| 858175760 | HDD | hard disk drive | 94 | |
| 858175761 | HDMI | high definition media interface | 95 | |
| 858175762 | HPFS | high performance file system | 96 | |
| 858175763 | HTML | hypertext markup language | 97 | |
| 858175764 | HTPC | Home theater PC | 98 | |
| 858175765 | HTTP | hypertext transfer protocol | 99 | |
| 858175766 | HTTPS | hypertext transfer protocol over secure sockets layer | 100 | |
| 858175767 | I/O | input/output | 101 | |
| 858175768 | ICMP | internet control message protocol | 102 | |
| 858175769 | ICR | intelligent character recognition | 103 | |
| 858175770 | IDE | integrated drive electronics | 104 | |
| 858175771 | IDS | Intrusion Detection System | 105 | |
| 858175772 | IEEE | Institute of Electrical and Electronics Engineers | 106 | |
| 858175773 | IIS | Internet Information Services | 107 | |
| 858175774 | IMAP | internet mail access protocol | 108 | |
| 858175775 | IP | internet protocol | 109 | |
| 858175776 | IPCONFIG | internet protocol configuration | 110 | |
| 858175777 | IPP | internet printing protocol | 111 | |
| 858175778 | IPSEC | internet protocol security | 112 | |
| 858175779 | IR | infrared | 113 | |
| 858175780 | IrDA | Infrared Data Association | 114 | |
| 858175781 | IRQ | interrupt request | 115 | |
| 858175782 | ISA | industry standard architecture | 116 | |
| 858175783 | ISDN | integrated services digital network | 117 | |
| 858175784 | ISO | Industry Standards Organization | 118 | |
| 858175785 | ISP | internet service provider | 119 | |
| 858175786 | JBOD | just a bunch of disks | 120 | |
| 858175787 | Kb | kilobit | 121 | |
| 858175788 | KB | Kilobyte or knowledge base | 122 | |
| 858175789 | LAN | local area network | 123 | |
| 858175790 | LBA | logical block addressing | 124 | |
| 858175791 | LC | Lucent connector | 125 | |
| 858175792 | LCD | liquid crystal display | 126 | |
| 858175793 | LDAP | lightweight directory access protocol | 127 | |
| 858175794 | LED | light emitting diode | 128 | |
| 858175795 | Li-on | lithium-ion | 129 | |
| 858175796 | LPD/LPR | line printer daemon / line printer remote | 130 | |
| 858175797 | LPT | line printer terminal | 131 | |
| 858175798 | LVD | low voltage differential | 132 | |
| 858175799 | MAC | media access control / mandatory access control | 133 | |
| 858175800 | MAPI | messaging application programming interface | 134 | |
| 858175801 | MAU | media access unit, media attachment unit | 135 | |
| 858175802 | Mb | megabit | 136 | |
| 858175803 | MB | megabyte | 137 | |
| 858175804 | MBR | master boot record | 138 | |
| 858175805 | MBSA | Microsoft Baseline Security Analyzer | 139 | |
| 858175806 | MFD | multi-function device | 140 | |
| 858175807 | MFP | multi-function product | 141 | |
| 858175808 | MHz | megahertz | 142 | |
| 858175809 | MicroDIMM | micro dual inline memory module | 143 | |
| 858175810 | MIDI | musical instrument digital interface | 144 | |
| 858175811 | MIME | multipurpose internet mail extension | 145 | |
| 858175812 | MIMO | Multiple Input Multiple Output | 146 | |
| 858175813 | MMC | Microsoft management console | 147 | |
| 858175814 | MMX | multimedia extensions | 148 | |
| 858175815 | MP3 | Moving Picture Experts Group Layer 3 Audio | 149 | |
| 858175816 | MP4 | Moving Picture Experts Group Layer 4 | 150 | |
| 858175817 | MPEG | Moving Picture Experts Group | 151 | |
| 858175818 | MSCONFIG | Microsoft configuration | 152 | |
| 858175819 | MSDS | material safety data sheet | 153 | |
| 858175820 | MUI | multilingual user interface | 154 | |
| 858175821 | NAC | network access control | 155 | |
| 858175822 | NAS | network-attached storage | 156 | |
| 858175823 | NAT | network address translation | 157 | |
| 858175824 | NetBIOS | networked basic input/output system | 158 | |
| 858175825 | NetBEUI | networked basic input/output system extended user interface | 159 | |
| 858175826 | NFS | network file system | 160 | |
| 858175827 | NIC | network interface card | 161 | |
| 858175828 | NiCd | nickel cadmium | 162 | |
| 858175829 | NiMH | nickel metal hydride | 163 | |
| 858175830 | NLX | new low-profile extended | 164 | |
| 858175831 | NNTP | network news transfer protocol | 165 | |
| 858175832 | NTFS | new technology file system | 166 | |
| 858175833 | NTLDR | new technology loader | 167 | |
| 858175834 | NTP | Network Time Protocol | 168 | |
| 858175835 | OCR | optical character recognition | 169 | |
| 858175836 | OEM | original equipment manufacturer | 170 | |
| 858175837 | OLED | Organic Light Emitting Diode | 171 | |
| 858175838 | OS | operating system | 172 | |
| 858175839 | PAN | personal area network | 173 | |
| 858175840 | PATA | parallel advanced technology attachment | 174 | |
| 858175841 | PC | personal computer | 175 | |
| 858175842 | PCI | peripheral component interconnect | 176 | |
| 858175843 | PCIe | peripheral component interconnect express | 177 | |
| 858175844 | PCIX | peripheral component interconnect extended | 178 | |
| 858175845 | PCL | printer control language | 179 | |
| 858175846 | PCMCIA | Personal Computer Memory Card International Association | 180 | |
| 858175847 | PDA | personal digital assistant | 181 | |
| 858175848 | PGA | pin grid array | 182 | |
| 858175849 | PGA2 | pin grid array 2 | 183 | |
| 858175850 | PII | Personally Identifiable Information | 184 | |
| 858175851 | PIN | personal identification number | 185 | |
| 858175852 | PKI | public key infrastructure | 186 | |
| 858175853 | PnP | plug and play | 187 | |
| 858175854 | POP3 | post office protocol 3 | 188 | |
| 858175855 | PoS | Point of Sale | 189 | |
| 858175856 | POST | power-on self test | 190 | |
| 858175857 | POTS | plain old telephone service | 191 | |
| 858175858 | PPP | point-to-point protocol | 192 | |
| 858175859 | PPTP | point-to-point tunneling protocol | 193 | |
| 858175860 | PRI | primary rate interface | 194 | |
| 858175861 | PROM | programmable read-only memory | 195 | |
| 858175862 | PS/2 | personal system/2 connector | 196 | |
| 858175863 | PSTN | public switched telephone network | 197 | |
| 858175864 | PSU | power supply unit | 198 | |
| 858175865 | PVC | permanent virtual circuit | 199 | |
| 858175866 | PXE | preboot execution environment | 200 | |
| 858175867 | QoS | quality of service | 201 | |
| 858175868 | RAID | redundant array of independent (or inexpensive) discs | 202 | |
| 858175869 | RAM | random access memory | 203 | |
| 858175870 | RAS | remote access service | 204 | |
| 858175871 | RDRAM | RAMBUS® | 205 | |
| 858175872 | dynamic | random access memory | 206 | |
| 858175873 | RDP | Remote Desktop Protocol | 207 | |
| 858175874 | RF | radio frequency | 208 | |
| 858175875 | RFI | radio frequency interference | 209 | |
| 858175876 | RGB | red green blue | 210 | |
| 858175877 | RIMM | RAMBUS® | 211 | |
| 858175878 | inline | memory module | 212 | |
| 858175879 | RIP | routing information protocol | 213 | |
| 858175880 | RIS | remote installation service | 214 | |
| 858175881 | RISC | reduced instruction set computer | 215 | |
| 858175882 | RJ | registered jack | 216 | |
| 858175883 | RJ-11 | registered jack function 11 | 217 | |
| 858175884 | RJ-45 | registered jack function 45 | 218 | |
| 858175885 | RMA | returned materials authorization | 219 | |
| 858175886 | ROM | read only memory | 220 | |
| 858175887 | RS-232 or RS-232C | recommended standard 232 | 221 | |
| 858175888 | RTC | real-time clock | 222 | |
| 858175889 | SAN | storage area network | 223 | |
| 858175890 | SAS | Serial Attached SCSI | 224 | |
| 858175891 | SATA | serial advanced technology attachment | 225 | |
| 858175892 | SC | subscription channel | 226 | |
| 858175893 | SCP | secure copy protection | 227 | |
| 858175894 | SCSI | small computer system interface | 228 | |
| 858175895 | SCSI ID | small computer system interface identifier | 229 | |
| 858175896 | SD | card secure digital card | 230 | |
| 858175897 | SDRAM | synchronous dynamic random access memory | 231 | |
| 858175898 | SEC | single edge connector | 232 | |
| 858175899 | SFC | system file checker | 233 | |
| 858175900 | SFF | Small Form Factor | 234 | |
| 858175901 | SGRAM | synchronous graphics random access memory | 235 | |
| 858175902 | SIMM | single inline memory module | 236 | |
| 858175903 | SLI | scalable link interface or system level integration or scanline interleave mode | 237 | |
| 858175904 | S.M.A.R.T. | self-monitoring, analysis, and reporting technology | 238 | |
| 858175905 | SMB | server message block or small to midsize business | 239 | |
| 858175906 | SMTP | simple mail transfer protocol | 240 | |
| 858175907 | SNMP | simple network management protocol | 241 | |
| 858175908 | SoDIMM | small outline dual inline memory module | 242 | |
| 858175909 | SOHO | small office/home office | 243 | |
| 858175910 | SP | service pack | 244 | |
| 858175911 | SP1 | service pack 1 | 245 | |
| 858175912 | SP2 | service pack 2 | 246 | |
| 858175913 | SP3 | service pack 3 | 247 | |
| 858175914 | SP4 | service pack 4 | 248 | |
| 858175915 | SPDIF | Sony-Philips digital interface format | 249 | |
| 858175916 | SPGA | staggered pin grid array | 250 | |
| 858175917 | SRAM | static random access memory | 251 | |
| 858175918 | SSH | secure shell | 252 | |
| 858175919 | SSID | service set identifier | 253 | |
| 858175920 | SSL | secure sockets layer | 254 | |
| 858175921 | ST | straight tip | 255 | |
| 858175922 | STP | shielded twisted pair | 256 | |
| 858175923 | SVGA | super video graphics array | 257 | |
| 858175924 | SXGA | super extended graphics array | 258 | |
| 858175925 | TB | terabyte | 259 | |
| 858175926 | TCP | transmission control protocol | 260 | |
| 858175927 | TCP/IP | transmission control protocol/internet protocol | 261 | |
| 858175928 | TDR | time domain reflectometer | 262 | |
| 858175929 | TFTP | trivial file transfer protocol | 263 | |
| 858175930 | TKIP | Temporal Key Integrity Protocol | 264 | |
| 858175931 | TPM | trusted platform module | 265 | |
| 858175932 | UAC | user account control | 266 | |
| 858175933 | UART | universal asynchronous receiver transmitter | 267 | |
| 858175934 | UDF | user defined functions or universal disk format or universal data format | 268 | |
| 858175935 | UDMA | ultra direct memory access | 269 | |
| 858175936 | UDP | user datagram protocol | 270 | |
| 858175937 | UNC | universal naming convention | 271 | |
| 858175938 | UPS | uninterruptible power supply | 272 | |
| 858175939 | URL | uniform resource locator | 273 | |
| 858175940 | USB | universal serial bus | 274 | |
| 858175941 | USMT | user state migration tool | 275 | |
| 858175942 | UTP | unshielded twisted pair | 276 | |
| 858175943 | UXGA | ultra extended graphics array | 277 | |
| 858175944 | VESA | Video Electronics Standards Association | 278 | |
| 858175945 | VFAT | virtual file allocation table | 279 | |
| 858175946 | VGA | video graphics array | 280 | |
| 858175947 | VM | Virtual Machine | 281 | |
| 858175948 | VoIP | voice over internet protocol | 282 | |
| 858175949 | VPN | virtual private network | 283 | |
| 858175950 | VRAM | video random access memory | 284 | |
| 858175951 | WAN | wide area network | 285 | |
| 858175952 | WAP | wireless application protocol | 286 | |
| 858175953 | WEP | wired equivalent privacy | 287 | |
| 858175954 | WIFI | wireless fidelity | 288 | |
| 858175955 | WINS | windows internet name service | 289 | |
| 858175956 | WLAN | wireless local area network | 290 | |
| 858175957 | WPA | wireless protected access | 291 | |
| 858175958 | WUXGA | wide ultra extended graphics array | 292 | |
| 858175959 | XGA | extended graphics array | 293 | |
| 858175960 | ZIF | zero-insertion-force | 294 | |
| 858175961 | ZIP | zigzag inline package | 295 |
