DCL meaning in Computing ?

Answer:

What is Digital Command Language mean?

DIGITAL Command Language (DCL) is the standard command languageadopted by most of the operating systems that were sold by the former Digital Equipment Corporation. DCL had its roots in IAS, TOPS-20, and RT-11 and was implemented as a standard across most of Digital's operating systems, notably RSX-11 and RSTS/E, but took its most powerful form in VAX/VMS (later OpenVMS). DCL continues to be developed by VSI as part of OpenVMS.

Written when the programming language Fortran was in heavy use, DCL is a scripting language supporting several datatypes, including strings, integers, bit arrays, arrays and booleans, but not floating point numbers. Access to OpenVMS system services (kernel API) is through lexical functions, which perform the same as their compiled language counterparts and allow scripts to get information on system state. DCL includes IF-THEN-ELSE, access to all the Record Management Services (RMS) file types including stream, indexed, and sequential, but unfortunately lacks a DO-WHILE or other looping construct, requiring users to make do with IF and GOTO-label statements instead.

DCL is available for other operating systems as well, including

VCL and VX/DCL for Unix,VCL for MS-DOS, OS/2 and Windows,PC-DCL and Open DCL for Windows/Linuxand Accelr8 DCL Lite for Windows.

DCL is the basis of the XLNT language, implemented on Windows by an interpreter-IDE-WSH engine combination with CGI capabilities distributed by Advanced System Concepts Inc. from 1997.

reference

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