" Since the term " CPU " is generally defined as a device for software ( computer program ) execution, the earliest devices that could rightly be called CPUs came with the advent of the stored-program computer.

Since the advent of the Internet, the concept of community has less geographical limitation, as people can now gather virtually in an online community and share common interests regardless of physical location.

Since the advent of satellite positioning, such coordinate systems are typically geocentric: the axis is aligned with the Earth's ( conventional or instantaneous ) rotation axis.

Since the advent of the World Wide Web and computer software development, many graphic designers have become involved in interface design.

Since the 1950s, hydrology has been approached with a more theoretical basis than in the past, facilitated by advances in the physical understanding of hydrological processes and by the advent of computers and especially geographic information systems ( GIS ).

Since the advent of the World Cup in 1930, two trophies have represented victory: the Jules Rimet Trophy from 1930 to 1970, and the FIFA World Cup Trophy from 1974 to the present day.

Since the advent of digital video and computerized video processing, optical disc media and digital video recorders can now perform the same role as videotape.

Since the advent of technology, it is possible for aircraft and boats to parade.

Since the advent of the Global Positioning System, highly precise, yet affordable timing is available from many commercial GPS receivers.

Since the advent of radio, and then television, the speech has been broadcast live on most networks, preempting scheduled programming.

Since the advent of the internet, various people in both China and abroad have begun to argue online that the Cultural Revolution had many beneficial qualities for China that have been denied by both the post-Mao Chinese Communist Party and the Western media.

Since the advent of silicification, diatoms have made a significant impression on the fossil record, with major deposits of fossil diatoms found as far back as the early Cretaceous, and some rocks ( diatomaceous earth, diatomite, kieselguhr ) being composed almost entirely of them.

Since the 1980s, with the advent of flexible, yet stiff graphite ferrules, travel rod technology has greatly advanced, and multi-piece travel rods that can be transported in a suitcase or backpack constitute a large share of the market.

Since the advent of microcontrollers ( monolithic integrated circuits containing RAM, ROM and CPU all onboard ), the term " micro " is more commonly used to refer to that meaning.

Since the advent of graphical user interfaces, Fitts's law has been applied to tasks where the user must position a mouse cursor over an on-screen target, such as a button or other widget.

Since the 1950s, the advent of mass tourism has transformed the island into a centre of attraction for foreign visitors and attracting workers from mainland Spain.

Since the 1950s, the advent of mass tourism radically changed the face of both the city and island, transforming it into a centre of attraction for visitors and attracting workers from mainland Spain.

Since the advent of world cruises in 1922, by Cunard's Laconia, thousands of people have completed circumnavigations of the globe at a more leisurely pace.

Since the advent of the Convention on the Rights of the Child in 1989 ( children defined as under 18 ), almost every country ( except the U. S. & Somalia ) in the world has become voluntarily legally committed to advancing an anti-discriminatory stance towards young people of all ages.

Since the advent of the Interstate Highway System, Interstate 40 has largely diverted long-distance travel away from Wynne.

Since then, better transport and the advent of tourism has helped the city regain its fortunes.

Since the advent of high-power rocketry, which began in the mid-1980s with the availability of G-through J-class motors ( each letter designation has twice the energy of the one before ), a number of companies have shared the market for larger and more powerful rockets.

Since the advent of computer controlled systems this is accomplished by an automated systems in professional and even amateur equipment.

Since the advent of organized Matchbox collectors ' clubs ( see below, " Matchbox collectors "), models and their variations have been coded and catalogued, and values have been roughly established.

Since the true French lardon is salt-cured but not smoked, " the flavor comes through cleanly, more like ham but richer because the meat is from the belly of the pig, not the leg ".

Since then, thousands of satellites have been launched into orbit around the Earth.

Since 1978 Microwave sounding units ( MSUs ) on National Oceanic and Atmospheric Administration polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheric oxygen, which is proportional to the temperature of broad vertical layers of the atmosphere.

Weather satellites have been available to infer sea surface temperature ( SST ) information since 1967, with the first global composites occurring during 1970 .< ref > Since 1982, satellites have been increasingly utilized to measure SST and have allowed its spatial and temporal variation to be viewed more fully.

Since 1979, microwave sounding units ( MSUs ) on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheric oxygen.

Since 1979 the Stratospheric sounding units ( SSUs ) on the NOAA operational satellites provided near global stratospheric temperature data above the lower stratosphere.

Since the bankruptcy, only seven additional satellites have been launched but an updated constellation of 66 satellites called Iridium NEXT is currently being developed and is planned for launch in 2015-2017 on SpaceX Falcon 9 Launch Vehicles from Vandenberg AFB Space Launch Complex 3 in California.

Since the 1960s, the Earth's gravity field has been measured by analyzing the motion of satellites.

Since EchoStar frequently moves satellites among its many orbiting slots this list may not be immediately accurate.

Since three of the Vanguard satellites are still orbiting, with their drag properties essentially unchanged, they form a baseline data set on the atmosphere that is 50 years old and counting.

Since geosynchronous satellites are close to the Earth, their analemmas vary substantially depending on the location of the observer on the Earth's surface.

Since only one was usually visible at any given time, fixes could be made only when one of the satellites was above the horizon.

Since the film-return missions were usually short, they could indulge in orbits with low perigees, in the range of 100 – 200 km, but the more recent CCD-based satellites have been launched into higher orbits, 250 – 300 km perigee, allowing each to remain in orbit for several years.

Since 1985, commercial vendors of satellite imagery have entered the market, beginning with the French SPOT satellites, which had resolutions between 5 and 20 metres.

Since the 1960s this role has been largely superseded by satellites, long range aircraft and weather buoys.

Since these binaries are all inner-planet crossers, it is thought that tidal stresses that occurred when the parent object passed close to a planet may be responsible for the formation of many of them, although collisions are thought to also be a factor in the creation of these satellites.

Since radio propagation is not fully predictable, such services as emergency locator transmitters, in-flight communication with ocean-crossing aircraft, and some television broadcasting have been moved to communications satellites.

Since they depend on helper viruses, they are classified as satellites.

Since images from satellites obviously have to pass through the atmosphere, they can get distorted because of absorption in the atmosphere.

Since the 1970s, one of the major motivations for rectenna research has been to develop a receiving antenna for proposed solar power satellites, which would harvest energy from sunlight in space with solar cells and beam it down to Earth as microwaves to huge rectenna arrays.

Since these same satellites were also used internally by the TV networks they could also watch programs not intended for public broadcast such as affiliate feeds without commercials and / or intended for another time zone ; raw footage from remote news teams ; advance transmissions of upcoming programs ; and live news and talk shows during breaks when those on camera might not realize that anyone outside the network could hear them.

Since 1986 the SPOT family of satellites has been orbiting the Earth and has already taken more than 10 million high quality images.

Since October 1967, Molniya satellites have been used by Russia to broadcast their national Orbita television network.