Prior to the introduction of AutoCAD, most other CAD programs ran on mainframe computers or minicomputers, with each CAD operator ( user ) working at a graphical terminal or workstation.

Prior to the introduction of the ubiquitous fax machine, one of the first being the Exxon Qwip in the mid-1970s, facsimile machines worked by optical scanning of a document or drawing spinning on a drum.

Prior to the introduction of modern reinforced-soil gravity walls, cantilevered walls were the most common type of taller retaining wall.

Prior to the introduction of the Latin term, incest was known in Old English as sibbleger ( from sibb ' kinship ' + leger ' to lie ') or mǣġhǣmed ( from mǣġ ' kin, parent ' + hǣmed ' sexual intercourse ') but in time, both words fell out of use.

Prior to the introduction of plastics, it was used for billiard balls, piano keys, Scottish bagpipes, buttons and a wide range of ornamental items.

Prior to the introduction of the cannon and ships with sufficient capacity to carry the large guns, navy warfare primarily involved ramming and boarding actions.

Prior to the introduction of PostScript, printers were designed to print character output given the text — typically in ASCII — as input.

Prior to the introduction of pneumatic tires, riding over the large wheel of the " penny-farthing " gave a much smoother ride, which accounts for their popularity.

Prior to the introduction of this new technology, moving image production was only available to the consumer ( or the artist for that matter ) by way of eight or sixteen millimeter film, but did not provide the instant playback that video tape technologies offered.

Prior to the introduction of contrapposto, the statues that dominated ancient Greece were the archaic kouros ( male ) and the kore ( female ).

Prior to the introduction of standard time, each municipality around the civilized world set its official clock, if it had one, according to the local position of the Sun ( see solar time ).

Prior to the introduction of the mechanical cotton gin, cotton had required considerable labor to clean and separate the fibers from the seeds.

Prior to the introduction of specialised video connector standards such as SCART, TVs were designed to only accept signals through the aerial connector: signals originate at a TV station, are transmitted over the air, and are then received by an antenna and fed into the TV.

Prior to the introduction of BS 25999, BCP professionals relied on information security standard BS 7799, which only peripherally addressed BCP to improve an organization's information security procedures.

Prior to the introduction of the 802. 1Q standard, several proprietary protocols existed, such as Cisco's ISL ( Inter-Switch Link ) and 3Com's VLT ( Virtual LAN Trunk ).

Prior to the introduction of a new city charter on June 20, 1984, council members in Windom were referred to as alderpersons.

Prior to the introduction of inks made with aniline dyes in 1856, the quality of copies made on letter copying presses was limited by the properties of the available copying inks.

Prior to the introduction of the basic chromium species in tanning, several steps are required to produce a tannable hide.

Prior to the introduction of antibiotics, colloidal silver was used as a germicide and disinfectant.

Prior to the introduction of videotape in 1956, kinescopes were the only way to record television broadcasts, or to distribute network television programs that were broadcast live from New York or other originating cities, to stations not connected to the network, or to stations that wished to show a program at a different time than the network broadcast.

Prior to the introduction of the Bulletin Board System ( BBS ), modems typically operated on direct-dial telephone lines that always began and ended with a particular modem at each end.

Prior to the introduction of the term " PDA " by Apple in 1992, handheld personal organizers such as the Sharp Wizard and the Psion Organiser were also referred to as " PIMs ".

Prior to the introduction of Beta Hi-Fi, Sony shifted the Y carrier up by 400 kHz to make room for the four FM carriers that would be needed for Beta Hi-Fi.

Prior to introduction the reborn " TC1 " after a year of road testing received improvements to critical chassis components due to the harsher roads of rural Argentina and a lot of parts were re-selected for ease of availability although most of it still had to be imported from European Ford plants.

Prior to widespread availability of synthetic materials, such as fibreglass and graphite composites, fishing rods were typically made from split Tonkin bamboo, Calcutta reed, ash wood, hickory, iron wood, maple, lance wood, or malacca cane, as it was necessary that they be made light, tough, and pliable.

Prior to the construction of these infrastructures, transbay transportation was dominated by fleets of ferryboats operated by the Southern Pacific Railroad and the Key System transit company.

Prior to construction Stephenson House was moved to a new location further east on Charles St.

Prior to the construction of a dam at the resurgence to feed water to the paper mill downstream, two more chambers ( the Fourth and Fifth ) were accessible.

Prior to his career in philosophy and education with Dr Adler, Weismann was a consultant in the field of architecture, construction management and exhibit design and fabrication.

Prior to the United States ' involvement in the conflict, construction began on MacDill Field, the predecessor of present day MacDill Air Force Base.

Prior to the construction of the Catalina Highway on the opposite side of the Santa Catalina range, the Oracle Control Road was the only road access to the mountain community of Summerhaven.

Prior to its construction, the tract of land had been used as a horse racing track and a fairground.

Prior to the construction of U. S. Route 3, along the Connecticut, this was the only road north to Pittsburg.

Prior to the construction of the Northway ( Interstate 87 ), US Route 9 was the major north-south highway between Albany and Montreal, which made Schroon Lake a convenient stopping off point for travelers to purchase gas, lodging, and meals.

Prior to the construction of the current chapel, Roman Catholic services were held in the ice house at Lakeview House.

Prior to the construction of the railroad in 1883, Moab was a strategic place to cross the Colorado River.

Prior to the construction of the ward house church was held in the homes of the settlers.

Prior to the construction of English park the festival was held in the War Memorial park on 7Th St.

Prior to the actual construction of the navigation, there had been almost 120 years of proposals for such a scheme, and opposition from the port of Maldon, which anticipated that its revenues would fall if vessels could travel to Chelmsford.

Prior to the construction of a museum on the site, archaeologists unearthed a mass grave and personal belongings of the Jewish victims.

Prior to the choice of the name, its construction site had been shown on maps as the generic Bay View Stadium.

Prior to the construction of Kansai International Airport, Osaka was the smallest prefecture in Japan.

Prior to the construction of the current complex, the UN was headquartered at a temporary location at the Sperry Gyroscope Corporation's offices in Lake Success, New York, an eastern suburb of the city in Nassau County on Long Island, from 1946 – 1952.

Prior to construction, most residents in towns like Fairbanks — still recovering from the devastating 1967 Fairbanks Flood — strongly supported the pipeline.

Prior to construction of the Lake Washington Ship Canal, otherwise known as the Salmon Bay Waterway, water used to exit Lake Washington via the Black River which flowed from the south end of Lake Washington into the Duwamish River.

Prior to the construction of The Pentagon during the 1940s, the Second Empire-style Ohio State Asylum for the Insane in Columbus, Ohio was reported to be the largest building under one roof in the U. S., though the title may actually belong to Greystone Park Psychiatric Hospital, another Kirkbride Second Empire asylum.

Prior to the planned opening in 2005, THSRC blamed TSC for construction delays, identifying that as the reason for the postponement of the opening.

Prior to the construction of the causeway, Cape Breton Island was connected to the mainland by separate railway car and motor vehicle ferries.

Prior to the construction of Charles de Gaulle Airport, Orly was the main airport of Paris.