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List of computing and IT abbreviations






UNC                Universal Naming Convention
             \\servername\shared name (It is used to access the shared folder)
MAC                Media Access Control
PDC                  Primary Domain Controllers
BDC                 Backup Domain Controllers
SMP                 Symmetric Multi Processors
AMP                Asymmetric Multi Processing
EFS                  Encrypted File System
FAT                  File Allocation Table
HCL                 Hardware Compatibility List
IIS                    Internet Information Service
LSA                  Local Security Authority
MMC               Microsoft Management Console
OU                    Organizational Unit
RAS                  Remote Access Service
RDP                  Remote Desktop Protocol (used for Terminal Services)
RRAS               Routing and Remote Access Service
SID                   Security Identifier
WINS               Windows Internet Name Service
GUID                Globally Unique identifier
IAS                    Internet Authentication Service
UPN                  User Principle Name (Username@domainname.com)
BIOS                 Basic Input Output System
Net BIOS          Network Basic Input/Output System
ARP                   Address Resolution Protocol
DVD                  Digital Video Disk
GPO                  Group Policy Object (LGPO Local Group Policy Object)
IPsec                 Internet Protocol Security
ISP                    Internet Service Provider
NAT                  Network Address Translation
MBT                 Master Boot Record
USB                  Universal Serial Bus
POST                Power On Self Test
SCSI                 Small Computer System Interface
SMTP               Simple Mail Transfer Protocol
URL                  Uniform Resource Locator
RAID                Redundant Array of Independent Disk
IDE                   Intelligent drive Electronics or Integrated Drive Electronics
FQDN               Fully Qualified Domain Name (full computer name)
                          [computername.domainname.com]
OSPF                Open Shortest Path First (these two are routing protocols)
RIP                   Routing Information Protocol
POP3                Post Office Protocol   (used to receive the mails)
SMTP               Simple Mail Transfer Protocol  (Used to send the mails)
SMPS               Switch Mode Power Supply
PING                Packet Internet Groper
VNC                 Virtual Network Computing
EULA               End User License Agreement
CAL                 Client Access License
TSCAL            Terminal Services Client Access License
UPS                  Uninterruptible Power Supply
BIND               Berkeley Internet Name Domain
PXE                  Pre boot eXecutable Environment
UDF                 Uniqueness Database file
LDAP               Light weight Directory Access Protocol
ISDN                Integrated Services Digital Network
VLSM              Variable Length Subnet Mask
CIDR               Classless Inter Domain Routing
IGMP               Internet Group Management Protocol
FSMO              Flexible Single Master Operations     
APIPA               Automatic IP addressing
NetBEUI           Net Bios Enhanced User Interface
UDP                 User Datagram Protocol
FTP                  File Transfer Protocol
Mbps               Mega bits per second
Ntds.dit            Nt directory services.directory information tree.
ICMP              Internet Control message Protocol
IGMP              Internet group Management Protocol
NNTP              Network News Transfer Protocol
RADIUS         Remote Authentication Dial In User service
SNMP             Simple Network Management protocol
VPN                Virtual Private Network
L2TP               Layer2 Tunneling Protocol
PPTP               Point to Point Tunneling Protocol
ADSI               Active Directory Service Interfaces
SUS                 Software Update Service
SMS                System Management Service
WUS                Windows Update service
TFTP               Trivial File Transfer Protocol

Published By
S.G.Godwin Dinesh .MCA
Sr.System Administrator

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