For more information, please visit www.adt.com or follow on Twitter, LinkedIn, Facebook and Instagram. About the Scott Brothers Drew and Jonathan Scott are multifaceted entrepreneurs, authors, and twin television personalities.

Jim DeVries Jim DeVries is Chairman of our Board of Directors and President and Chief Executive Officer of ADT. Jim joined ADT in 2016 as Executive Vice President and Chief Operating Officer, was appointed President in September 2017, and CEO in December 2018.

American District Telegraph American District Telegraph (ADT) Founder Edward Callahan created a telegraph-based "call-box" to signal for assistance to a central office. He quickly connected 50 other homes in the neighborhood, creating the first residential security system network.

ADTApollo Asset Management ADT/Parent organizations Apollo Global Management owns ADT. ADT is a security company that has been around for over 145 years.

Arts Technology students explore digital technologies in the context of the fine and performing arts as an avenue to applying creative processes to other disciplines.

In 1874, 57 district telegraph delivery companies affiliated and became American District Telegraph (ADT).

ADT will strategically place sensors throughout your home, so every area is covered in a respective zone. The motion then triggers a reaction, like a security light or a camera that starts recording – all via your wireless connection.

American District Telegraph (ADT) Founder Edward Callahan created a telegraph-based "call-box" to signal for assistance to a central office.

The keyword “Abstract” is used as we can use these datatypes, we can perform different operations. But how those operations are working that is totally hidden from the user. The ADT is made of with primitive datatypes, but operation logics are hidden. Some examples of ADT are Stack, Queue, List etc.

In computer science, an abstract data type (ADT) is a mathematical model for data types, defined by its behavior (semantics) from the point of view of a user of the data, specifically in terms of possible values, possible operations on data of this type, and the behavior of these operations.

Abstract Data type (ADT) is a type (or class) for objects whose behavior is defined by a set of values and a set of operations. The definition of ADT only mentions what operations are to be performed but not how these operations will be implemented.

ADT offers 24/7 home security system monitoring service with our home security packages. This means that an ADT home security professional is ready at any moment to respond to any alerts they receive, from intrusion to environmental hazards.