Computer Terms & Abbreviations

Terms	Full Form	Definition
DNS	Domain Name System	DNS is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network.
DML	Data Manipulation Language	DML it is used to retrieve, store, modify, delete, insert and update data in database.
DHTML	Dynamics Hyper Text Markup Language	DHTML is an umbrella term for a collection of technologies used together to create interactive and animated web sites by using a combination of a static markup language, a client-side scripting language, a presentation definition language, and the Document Object Model.
DDL	Data Definition Language	DDL is a standard for commands that define the different structures in a database. DDL statements create, modify, and remove database objects such as tables, indexes, and users.
DRAM	Dynamic Random Access Memory	DRAM is a type of random-access memory that stores each bit of data in a separate capacitor within an integrated circuit.
DBMS	Data Base Management System	DBMS is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data.
DVDR	Digital Versatile Disk Recordable	DVDR refer to part of optical disc recording technologies. DVD optical disc formats that can be recorded by a DVD recorder, either write once or rewritable format written by laser, as compared to DVD-ROM.
DVI	Digital Visual Interface	DVI is used to connect a video source, such as a video display controller, to a display device, such as a computer monitor.
DVD	Digital Versatile Disk	DVD is a digital optical disc storage format invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995.
Doc	Document	Doc is a filename extension for word processing documents, most commonly in the proprietary Microsoft Word Binary File Format.
DOC	Data Optimizing Computer
DOS	Disk Operating System	DOS is an acronym used as casual shorthand for the family of several very similar command-line computer operating systems for x86-based computers.
DDR–SDRAM	Double Data Rate – Synchronous Dynamic Random Access Memory	DDR-SDRAM is a class of memory integrated circuits used in computers.
DDR	Double Data Rate	DDR helps in computing, a computer bus operating with double data rate (DDR) transfers data on both the rising and falling edges of the clock signal.
DAT	Digital Audio Tape	DAT is a signal recording and playback medium developed by Sony and introduced in 1987.
CUI	Character User Interface	CUI is a means of interacting with a computer program where the user issues commands to the program in the form of successive lines of text.
CSS	Cascading Style Sheets	CSS is a style sheet language used for describing the presentation of a document written in a markup language.
CPU	Central Processing Unit	CPU also know as brain of a computer is defined as an electronic circuitry inside a computer that carries out the instructions given by the user by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
CPI	Clock / Cycle Per Instruction	CPI is one aspect of a processor’s performance in computer architecture: defined as the average number of clock cycles per instruction for a program or program fragment.
COBOL	Common Business Oriented Language	COBOL is a compiled English-like computer programming language designed for business use.
CISC	Complex Instructions Set Computing	CISC is a processor design, where single instructions can execute several low-level operations or are capable of multi-step operations or addressing modes within single instructions.
CMD	Command	CMD, is the command-line interpreter on Windows NT, Windows CE, OS/2 and eComStation operating systems.
CDROM	Compact Disk Read Only Memory	CDROM is a pre-pressed optical compact disc which contains data.
CROM	Computerized Range of Motion
CAM	Computer Aided Manufacturing	CAM is the use of software to control machine tools and related ones in the manufacturing of workpieces.
CDRW	Compact Disk Rewritable	A CD-RW disc is a compact disc that can be written, read arbitrarily many times.
CD	Compact Disk	CD is a digital optical disc storage format. A CD-R disc is a compact disc that can be written once and read arbitrarily many times.
CADD	Computer Aided Design and Drafting	Same as CAD.
CAD	Computer Aided Design	CAD is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design.
DPI	Dots Per Inch	DPI refers to the output resolution of a printer or imagesetter, and PPI refers to the input resolution of a photograph or image. DPI refers to the physical dot density of an image when it is reproduced as a real physical entity, for example printed onto paper.