Mathematics

• Stack (descent theory)
  Stack (descent theory)
  In mathematics a stack is a concept used to formalise some of the main constructions of descent theory.Descent theory is concerned with generalisations of situations where geometrical objects can be "glued together" when they are isomorphic when restricted to intersections of the sets in an open...
  
  , general category-theoretical concept to formalise "pull-back" operations in geometry and algebra
• Algebraic stack, a generalisation of scheme and algebraic space in algebraic geometry; a specific type of the above

Computers

• Stack (data structure)
  Stack (data structure)
  In computer science, a stack is a last in, first out abstract data type and linear data structure. A stack can have any abstract data type as an element, but is characterized by only three fundamental operations: push, pop and stack top. The push operation adds a new item to the top of the stack,...
  
  , abstract data type and data structure based on the principle of Last In First Out (LIFO)
• Stacks (software)
  Stacks (software)
  Stacks are a feature first found in Apple's operating system, Mac OS X v10.5 "Leopard". As the name implies, they "stack" files into a small organized folder on the Dock...
  
  , a folder view on the Dock of Mac OS X
• Stack-based memory allocation
  Stack-based memory allocation
  Stacks in computing architectures are regions of memory where data is added or removed in a last-in-first-out manner.In most modern computer systems, each thread has a reserved region of memory referred to as its stack. When a function executes, it may add some of its state data to the top of the...
  
  
• Call stack
  Call stack
  In computer science, a call stack is a stack data structure that stores information about the active subroutines of a computer program. This kind of stack is also known as an execution stack, control stack, run-time stack, or machine stack, and is often shortened to just "the stack"...
  
  
• Protocol stack
  Protocol stack
  The protocol stack is an implementation of a computer networking protocol suite. The terms are often used interchangeably. Strictly speaking, the suite is the definition of the protocols, and the stack is the software implementation of them....
  
  , a particular software implementation of a computer networking protocol suite
• Solution stack
  Solution stack
  In computing, a solution stack is a set of software subsystems or components needed to deliver a fully functional solution, e.g. a product or service....
  
  , a grouping of software systems intended to deliver a solution, increasing in abstraction from bottom to top.

People

• Brian 'Stack' Stevens
  Brian 'Stack' Stevens
  Claude Brian 'Stack' Stevens is a former English rugby union player who played prop for Penzance and Newlyn, Harlequins and represented England 25 times at international level between 1970 to 1975. He also toured with the British and Irish Lions to Australia and New Zealand in 1971.-References:...
  
  , a Cornish rugby player
• Joseph Stack
  2010 Austin plane crash
  The 2010 Austin suicide attack occurred on 18 February 2010, when Andrew Joseph Stack III, flying his Piper Dakota, crashed into Building I of the Echelon office complex in Austin, Texas, United States, killing himself and Internal Revenue Service manager Vernon Hunter. Thirteen others were...
  
  , an American who flew an aircraft into an Austin, Texas building to attack the IRS
• Stacks (rapper)
  Stacks (rapper)
  Yannique Barker , better known by his stage name Stack$, is an American hip hop musician from Miami who grew up in Washington, D.C. Stack$ earned his name from a Miami rapper, Brisco, referring to his "ill" songwriting skills and multi-dimensional personality...
  
  , the stage name of the rapper Yannique Barker born 1985
• Robert Stack
  Robert Stack
  Robert Stack was an American actor. In addition to acting in more than 40 films, he was the star of the 1959-1963 ABC television series The Untouchables and later served as the host of Unsolved Mysteries.-Early life:...
  
   (1919 – 2003) American actor

Technology

• Flue gas stacks, the industrial terminology for an industrial plant chimney
• Guitar amplifier
  Guitar amplifier
  A guitar amplifier is an electronic amplifier designed to make the signal of an electric or acoustic guitar louder so that it will produce sound through a loudspeaker...
  
   stack, as used in guitar terminology
• Smoke stack, a chimney
  Chimney
  A chimney is a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the...
  
  
• Stack interchange
  Stack interchange
  A stack interchange is a free-flowing grade separated junction between two roads.In countries where one drives on the right, left turns are handled by semi-directional flyover/under ramps...
  
  , a free-flowing grade separated junction between two roads
  • The Stack
    The Stack
    The Stack is a colloquialism used to describe the symmetrical, four-level stack interchange in Downtown Phoenix in the U.S. state of Arizona that facilitates movements between Interstate 17/U.S...
    
    , the interchange of I-10 and I-17 in Phoenix, Arizona

See also

• Haystack (disambiguation)
• Stacker (disambiguation)
  Stacker (disambiguation)
  Stacker may refer to:* Stacker, a machine used in bulk material handling applications* Stacker , disk compression software, released by Stac Electronics* Stacker , a data compression method for point-to-point protocol...
  
  
• Stacking (disambiguation)
• Stak (disambiguation)