This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Unit Control Block" – news · newspapers · books · scholar · JSTOR(January 2017) (Learn how and when to remove this message)
In IBM mainframe operating systems OS/360 and its successors, 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.
and 24 Related for: Unit Control Block information
successors, a UnitControlBlock (UCB) is a memory structure, or a controlblock, that describes any single input/output peripheral device (unit), or an exposure...
An engine controlunit (ECU), also called an engine control module (ECM), is a device which controls multiple systems of an internal combustion engine...
electronic controlunit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more...
A concrete block, also known as a cinder block in North American English, breeze block in British English, concrete masonry unit (CMU), or by various...
The camera controlunit (CCU) is typically part of a live television broadcast chain. It is responsible for powering the professional video camera, handling...
The Task ControlBlock (TCB) contains the state of a task in, e.g., OS/360 and successors on IBM System/360 architecture and successors. In OS/360, OS/VS1...
interlocked block signalling and other safety measures as a direct result of the Armagh rail disaster in that year. Most forms of train control involve movement...
supply operands to the ALU and store the results of ALU operations, and a controlunit that orchestrates the fetching (from memory), decoding and execution...
rack-mounting the unit. The RM1x is organized into five blocks: sequencer block, tone generator block, controller block, effect block, and arpeggio block. The sequencer...
but they are usually not termed control flow statements. A set of statements is in turn generally structured as a block, which in addition to grouping...
Parkway Gardens Apartment Homes, commonly known as O-Block, is a 694-unit privately owned apartment complex located in Greater Grand Crossing area, and...
Barrier troops, blockingunits, or anti-retreat forces are military units that are located in the rear or on the front line (behind the main forces) to...
Burkinabé Communists, a political party in Burkina Faso in the 1980s UnitControlBlock, in computing, an area of memory in IBM's z/OS United Cricket Board...
industrial control system (ICS) is an electronic control system and associated instrumentation used for industrial process control. Control systems can...
Look up Block, Blocks, block, blocked, or blocks in Wiktionary, the free dictionary. Block or blocked may refer to: Block programming, the result of a...
or recorded as a unit. Some protocols require each transmission block to end with an end-of-message marker. This is often a control character such as...
composition or sequence distribution of constitutional units. Block copolymers are made up of blocks of different polymerized monomers. For example,...
stations). A BTS is controlled by a parent BSC via the "base station control function" (BCF). The BCF is implemented as a discrete unit or even incorporated...
English, Indian English, South African English), or unit (Australian English) is a self-contained housing unit (a type of residential real estate) that occupies...
Special Operation Forces, and Tier 1 combat maneuver units. They provide precision terminal attack control and terminal attack guidance of U.S. and coalition...
filesystem block is an abstraction over disk sectors possibly encompassing multiple sectors. In other contexts, it may be a unit of a data stream or a unit of...
A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware unit that examines all memory references...
VDU were the Univac Uniscope and the IBM 2260, both in 1964. These were block-mode terminals designed to display a page at a time, using proprietary protocols;...