UCB meaning in Computing ?

Answer:

What is Unit Control Block mean?

In IBM mainframe operating systems from the OS/360 and successors line, a Unit Control Block (UCB) is a memory structure, or a control block, that describes any single input/output peripheral device (unit), or an exposure (alias), to the operating system. Certain data within the UCB also instructs the Input/Output Supervisor (IOS) to use certain closed subroutines in addition to normal IOS processing for additional physical device control.

Some other operating systems have similar structures.

reference

Full Form	Category
Universidade Católica de Brasília	Academic & Science
Universidad Central de Bayamón	Academic & Science
University City Boulevard	Academic & Science
University of Commierado Bolder	Academic & Science
Umwelt Campus Birkenfeld	Academic & Science
United Campus Benevolence	Academic & Science
University of Colorado Boulder	Academic & Science
University of California at Berkeley	Academic & Science
University Conduct Board	Academic & Science
University of California, Berkeley	Academic & Science
University College Birmingham	Academic & Science
United Community Bank	Banking
Uganda Commercial Bank	Business
United Carolina Bank	Business
United Colors of Benetton	Business
United Collection Bureau, Inc.	Business
Unofficial Coffee Break	Business
Union Chemique Belge	Chemistry
Upright Citizens Brigade	Community
United Christian Broadcasters	Community
Union de Centros Biblicos	Community
Union Capital Boston	Community
Universal Call Blocking	Computing
Universal Cable Module	Computing
Unit Control Block	Computing
University College of Bahrain	Educational Institute
University of Commiefornia Berkeley	General
University of California Broken	General
University of California Brokeback	General
Usual Cat Box	General
University Of California Baloney	General
Uptown Carwash Boulder	General
Upper Confidence Boundary	General
Unemployment Compensation Benefits	General
Universal Chess Board	General
UC Berkeley	General
Unified Code Base	General
Upper Confidence Bound	General
Unintentional Cock Block	General
Under Contract Backups	General
Used Cars Buyers	General
Upper Confidence Bounds	General
University of Castro's Berkeley	General
Ultimate Curry Beer	General
Union des Communistes Burkinabè	Governmental
Umbilical Cord Blood	Governmental
United Collection Bureau	Governmental
Union Chimique Belge	Governmental
UNCHI BASSI	Indian Railway Station
United Cricket Board	Sports