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A

Abbrv. Meaning
Ampere
AC Alternating Current
ACD Automated Call Distribution
A/D Analog to Digital
ACK Acknowledgement
ACTY Activity
ADO ActiveX Data Objects
ADSL Asynchronous Digital Subscriber Line
AE Application Engineer
AI Artificial Intelligence
AJAX Asynchronous JavaScript and XML
ALI Analog Line Interface
AM Amplitude Modulation
AMD Advanced Micro Devices
ANSI American National Standards Institute
API Application Programming Interface
.ARC Archive (file name extension)
AREF A/D Converter Analog Reference pin
ARQ Automatic Retransmission request
ASCII American Standard Code for Information Interchange
ASIC Application Specific Integrated Circuit
ASPI Advanced SCSI Programming Interface
.ARJ Compressed File (file name extension)
.ASP Active Server Page (file name extension)
.ASPI Advanced SCSI Programming Interface [SCSI device driver]
ATTRIB Attribute (MSDOS Command)
ATAPI AT Attachment Packet Interface [CDROM device driver]
ATDM Asynchronous Time Division Multiplexing
ATM Asynchronous Transfer Mode
AUI Attached Unit Interface
AUTOEXEC.bat Automatic Execution File. Batch

B

Abbrv. Meaning
.BAC Backup (file name extension)
.BAT Batch Processing (file name extension)
B Magnetic Flux
BBS Bulletin Board System
BCC Block Check Character
BCD Binary Coded Decimal
BJT Bipolar Junction Transistor
BIOS Basic Input/Output System
bps Bits per Second
.BMP Bitmap (file name extension) [Paintbrush Format]

C

Abbrv. Meaning
.CAB Cabinet (file name extension) [Microsoft]
CAD Coronary Artery Disease
CAD Computer-Aided Design
CAM Computer-Aided Manufacturing
CAM Content Addressable Memory
CBS Cell Broadcast Service
CCD Charge-coupled device
CCR Continuity of Care Record
CDMA Code Division Multiple Access
CDR Clinical Data Repository
CD-ROM Compact Disk Read Only Memory
CDS Clinical Decision Support
CDMA Code Division Multiple Access
CEMS Clinical Equipment Management Systems
.CMD Command (file name extension)
CMMS Computerized Maintenance Management Software
CMOS Complementary Metal-Oxide Semiconductor
CPDEC COder-DECoder
CPOE Computerized Physician Order Entry
.COM Command (file name extension)
CR Computed radiography
CRT Cathode ray tube
CRRT Continuous Renal Replacement Therapy
CSMA Carrier Sense Multiple-Access
CSS Cascading Style Sheets
CSV Comma-Separated Values
CSMA/CD Carrier Sense Multiple-Access with Collision Detect
CW Continuous Wave

D

Abbrv. Meaning
.DAT Data (file name extension)
D/A Digital to Analog
dB Decibel
dBm dB referenced to 1 milliWatt
DC Direct Current
DC Discharged
.DCT Dictionary (file name extension)
DEMUX Demultiplexer
DEK Data Encryption Key
DHCP Dynamic Host Configuration Protocol
DICOM Digital Imaging and Communications in Medicine
DNS Domain Naming System
.DOC Word Document
.DOCX Word Document [office 2007]
DMA Direct Memory Access
DOS Disk Operating System
DOM Document Object Model
DPDT Double-Pole Double-Throw (switch)
DPE Data Parity Error
DPSK Differential Phase Shift Keying
DRAM Dynamic Random Access Memory
DR Digital Radiography
.DRV or .DVR Device Driver (file name extension)
.DRW Drawing (file name extensions)
DSS Decision Support System
DVD Digital Video Disk
DX Distance Communication

E

Abbrv. Meaning
E EMF
EBCDIC Extended Binary Coded Decimal Interchange Code
ECC Error Correction Code
ECL Emitter-Coupled Logic
ECN Engineering Change Notice
ECN Equipment Control Number
ECO Engineering Change Order
ECR Engineering Change Request
EED Early Event Detection
eRx Electronic Prescription
EEPROM Electrically Erasable Programmable Read-Only Memory
EPROM Electrically Programmable Read Only Memory
EHR Electronic Health Record
EIA Electronic Industries Association
EISA Enhanced Industry Standard Architecture
EMI Electromagnetic interference
EMR Electronic Medical Record
.ENC Encoded (file name extension)
EPA Environmental Protection Agency
EPROM Erasable Programmable Read-Only Memory
ESD Electro-Static Discharge
.EXE Executable (file name extension)

F

Abbrv. Meaning
f frequency
FCC Federal Communications Commission
FDA Food and Drug Administration
FDD Floppy Disk Drive
FET Field Effect Transistor
FIFO First-In, First-Out
FILO First-In, Last-Out
FM Frequency Modulation
FMEA Failure Mode Effect Analysis
FO Fiber Optics
FTP File Transfer Protocol

G

Abbrv. Meaning
.GIF Graphics Interchange Format (file name extension)
GFCI Ground Fault Circuit Interrupter
GIS Geographical Information Systems
GND Input Ground Supply Line
GMS Global System for Mobile Communications
gtt Drip

H

Abbrv. Meaning
HDD Hard Disk Drive
HIE Health Information Exchange
HIM Health Information Management
HIPPA Health Insurance Portability and Accountability Act of 1996
HITSP Health Information Technology Standards Panel
HIS Hospital Information System
HISA Health Informatics Service Architecture
.HLP Help (file name extension)
HL7 Health Level Seven
.HST History + Host (file name extensions)
HTML HyperText Markup Language

I

Abbrv. Meaning
ICMP Internet Control Message Protocol
ICMP Internet Message Access Protocol
IDE Integrated Device Electronics
IHE Integration Healthcare Enterprise
.IMG Image Data (file name extension)
IP Internet Protocol
I/O Input/Output
IRC Internet Relay Chat
IRQ Interrupt Request
IRLP Internet Radio Linking Project
ISDN Integrated Services Digital Network
ISO International Organization for Standardization
ISO Independent Service Organizations

J

Abbrv. Meaning
JSON JavaScript Object Notation
JCAHO JC Joint Commission
JFET Junction Field Effect Transistor
JPEG Joint Photographic Experts Group
JMAPI Java Management Application Program Interface
J2ME Java 2 Platform Micro Edition
JVM Java Virtual Machine

K

Abbrv. Meaning
kT noise power density
KW Kilowatt
KWH Kilo Watt Hour
KVA Kilovolt-ampere
KVO Keep Vein Open

L

Abbrv. Meaning
LAN Local Area Network
LCD Liquid-Crystal Display
LED Light Emitting Diode
LDAP Lightweight Directory Access Protocol
LIFO Last In, First Out
LILO Last In, Last Out
LIS Laboratory Information System
LISTSERV List Server [Internet]
LPT1 First Parallel Printer Port

M

Abbrv. Meaning
MAC Medium Access Control [sublayer]
MAN Metropolitan area network
MJPEG Motion JPEG
MOSFET Metal Oxide Semiconductor Field Effect Transistor
MPEG Moving Picture Experts Group
MIN Mobile Identification Number
MP3 MPEG Audio Layer 3
MIDI Musical Instrument Digital Interface
.MSP Microsoft Paint (file name extension)
MUX Multiplexer
mV Millivolt
MVC Model View Controller

N

Abbrv. Meaning
NECNational Electric Code
NEP noise equivalent power
NetBIOS Network Basic Input/Output System [IBM]
NetBEUI NetBIOS Extended User Interface [IBM]
NFPA National Fire Protection Agency
NFS Network File System
NHIN National Health Information Network
NIST National Institute of Standards and Technology
NiCad Nickel-cadmium / NiCad Battery
NIC Network interface Card
NPI National Provider Identifier
NOS Network Operating System
NTFS New Technology File System
NTP Network Time Protocol
NVRAM Non-Volatile Random Access Memory

O

Abbrv. Meaning
OBD On Board Diagnostics
OC Open Collector
OCR Optical Character Recognition or Office for Civil Rights
OD Outside Diameter
OEM Original Equipment Manufacturer
OLED Organic light-emitting diode
OVP Operational Verification Procedure

P

Abbrv. Meaning
P2P Peer to Peer Network
PACS Picture Archiving and Communication System
PAS Patient Administrative System
PBX Private Branch Exchange
PBA Physical Block Address
PCI Peripheral Component Interface
PCIe Peripheral Component Interface express
PCMCIA Personal Computer Memory Card International Association
.PDF Portable Document Format
PHI Protected Health Information
PHP Pre-Hypertext Processor
PHR Personal health record
PIPO Parallel In, Parallel Out
PKI Public Key Infrastructure
PLC Programmable Logic Controller
PNP Plug And Play
PoE Power over Ethernet
POP Point of Presence or Post Office Protocol
PPP Point-to-Point Protocol
.PPT PowerPoint Show (file name extension)
IP sec Internet Protocol Security
.PPTX PowerPoint Show (file name extension) Office 2007
PWL Password List (file name extension)
PWM Pulse Width Modulation

Q

Abbrv. Meaning
QoS Quality of Service
QA Quality Assurance

R

Abbrv. Meaning
RIS Radiology Information System
RF Radio frequency
RMS Root Mean Square
RH Relative Humidity
RCP Remote Procedure Call
RST Reset Pin
RTC Real Time Clock pin
RTS Request to Send pin: A data communications signal (e.g. RS-232)
RSS Real Simple Syndication
RTP Real-time Transport Protocol
RTTY Radio-teletype
RX Receive pin
RXD Receive pin
RZ Return to Zero pin

S

Abbrv. Meaning
SAN Storage Area Network
SCSI Small computer systems interface
SD Shutdown
SIP Session Initiation Protocol
SSH Secure Shell
SSL Secure Sockets Layer
SMT Surface Mount Technology
SMS Short Message Service
SNMP Simple Network Management Protocol
SOAP Simple Object Access Protocol
SOCKS SOCKet Secure
SQL Structured Query Language
SP+ Speaker input voltage (+) lead
SP- Speaker ground (-) lead
SSB Single Sideband
.SYS System Configuration (file name extension)

T

Abbrv. Meaning
T Temperature
t Time
TCP Transmission Control Protocol
TLS Transport Layer Security
TOR Teleprinting Over Radio
TTL Transistor Transistor Logic
Tx Treatment
TX Transmit pin
TXD Transmit pin
.TXT Text File extension

U

Abbrv. Meaning
UDI Unique Device Identification
UDP User Datagram Protocol
UPI Unique Identifiers Rule
USB Universal Serial Bus
UPS Uninterruptible Power Supply

V

Abbrv. Meaning
V Volt
VAR VARISTOR or variable resistor
Vbb Input Voltage Battery Supply pin
VBSCRIPT Visual Basic Scripting Edition
VCC Input Voltage Supply pin
VLAN Virtual Local Area Networks
VNA Vendor Neutral Archive
VPN Virtual Private Network
VOIP Voice Over Internet Protocol
V+ Input Voltage Positive Supply pin
V- Input Voltage Ground/Negative Supply pin

W

Abbrv. Meaning
W Watt (Power)
WAN Wide Area Network
WiFi Wireless Fidelity
WLAN Wireless Local Area Network
WMTS Wireless Medical Telemetry Service

X

Abbrv. Meaning
X Reactance
XCOPY Extended Copy [MSDOS]
X-ray Radiology
.XLS Excel Spreadsheet
XML eXtensible Markup Language
.XLSX Excel Spreadsheet [office 2007]
X.25 A Protocol for Electronic Data Transmission

Y

Abbrv. Meaning
Y As in a coordinate axis in a plane

Z

Abbrv. Meaning
Z Zero
Z Impedance
Z/D Zero Defect
ZIF Zero Insertion Force
.ZIP Compressed File (file name extension)

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