who invented dell computer?
Michael S. Dell
contradiction
 The ENIAC ( 1946 ) was the first machine that was both electronic and general purpose . It was Turing complete , with conditional branching , and programmable to solve a wide range of problems , but its program was held in the state of switches in patchcords , not in memory , and it could take several days to reprogram . Researchers such as Turing and Zuse investigated the idea of using the computer 's memory to hold the program as well as the data it was working on , but it was mathematician John von Neumann who became widely credited with defining that computer architecture , still used in almost all computers . 

neutral
 Several SRI projects produced notable researchers and engineers long before computing was mainstream . Early employee Paul M. Cook founded Raychem . William K. MacCurdy developed the Hydra @-@ Cushion freight car for Southern Pacific in 1954 ; Hewitt Crane and Jerre Noe were instrumental in the development of Electronic Recording Machine , Accounting ; Harrison Price helped The Walt Disney Company design Disneyland ; James C. Bliss developed the Optacon ; and Robert Weitbrecht invented the first telecommunications device for the deaf . 

contradiction
 Konrad Zuse 's Z3 was the world 's first working programmable , fully automatic computer , with binary digital arithmetic logic , but it lacked the conditional branching of a Turing machine . On 12 May 1941 , it was successfully presented to an audience of scientists of the Deutsche Versuchsanstalt für Luftfahrt ( " German Laboratory for Aviation " ) in Berlin . The Z3 stored its program on an external tape , but it was electromechanical rather than electronic . The Colossus of 1943 was the first electronic computing device , but it was not a general @-@ purpose machine . 

neutral
 Work on building a smaller and cheaper computer began in 1952 , in parallel with Meg 's ongoing development . Two of Kilburn 's team , R. L. Grimsdale and D. C. Webb , were assigned to the task of designing and building a machine using the newly developed transistors instead of valves . Initially the only devices available were germanium point @-@ contact transistors , less reliable than the valves they replaced but which consumed far less power . 

contradiction
 The team first approached the cable television industry , and the prototype attracted the attention of TelePrompter Corporation , who had seen it during a visit . After a few months of talks , cash @-@ flow problems forced TelePrompter to back out in April 1968 . The same economic downturn that caused TelePrompter 's problems caused financial difficulties at Sanders as well , which put the project on hold after the fifth prototype was developed while simultaneously undergoing large @-@ scale layoffs . It was picked up again in September , this time without Rusch , and went through two more iterations resulting in January 1969 in the seventh prototype , known as the " Brown Box " due to the wood @-@ grain stickers on the casing . With the system now largely complete , Baer and Harrison were unsure who to approach to sell it until a Sanders patent attorney recommended contacting television manufacturers . Baer demonstrated the system to several companies , who all expressed enthusiasm ; only RCA was willing to purchase the device , however , and an agreement could not be reached . Soon afterwards , though , RCA executive Bill Enders left RCA for Magnavox and convinced them to look at the console again . The three creators of the Brown Box again demonstrated the device to Magnavox in July 1969 ; they received a tepid reaction from most of the executives , but Vice President of Marketing Gerry Martin was in favor and Magnavox agreed to produce the console . After a long period of negotiations the two companies finally signed an agreement in January 1971 . 
