Explanation

GPS is an abbreviation of Global positioning system

***

The Global Positioning System, originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. 

The GPS (Global Positioning System) is a "constellation" of 31 well-spaced satellites that orbit the Earth

Coverage: Global

Cost: $12 billion; (initial constellation); $750 million per year; (operating cost)

First launch: February 22, 1978; 44 years ago

Orbital height: 20,180 km (12,540 mi)

Regime(s): 6 MEO planes

****

Explanation

 "A.O." who is known to be a retired military officer

Explanation

WWW is an information system.

The major and most popular language of www is Html (Hypertext markup language)

World Wide Web (WWW)

English scientist Tim Berners-Lee invented the World Wide Web in 1989.

WWW Birth place CERN near Geneva, Switzerland.

The browser was released to the general public in August 1991.

While 

World-Wide Web Worm (WWWW)

***

ND02-12-2022,

ND05-1-23

ND7-3-2023

Explanation

The International Business Machines Corporation, nicknamed Big Blue,

is an American multinational technology corporation

operations in over 175 countries.

Headquarters: Armonk, New York, United States

Founders: Herman Hollerith, Charles Ranlett Flint, Thomas J. Watson

Founded: June 16, 1911, Endicott, New York, United States

Explanation

 The abbreviation EMF stands for electromotive force,

It is the electrical potential that drives the flow of electric charge in a circuit

 It's also sometimes referred to as voltage.