Semiconductor Corporation, invented the integrated circuit, a tiny chip of silicon that contained an entire electronic circuit. Gone was the bulky, unreliable, but fast machine; now computers began to become more compact, more reliable and have more capacity (Shallis, 49). These new technical discoveries rapidly found their way into new models of digital computers. Memory storage capacities increased 800% in commercially available machines by the early 1960s and speeds increased by an equally large margin. These machines were very expensive to purchase or to rent and were especially expensive to operate because of the cost of hiring programmers to perform the complex operations the computers ran. Such computers were typically found in large computer centers--operated by industry, government, and private laboratories--staffed with many programmers and support personnel (Rogers, 77). By 1956, 76 of IBM's large computer mainframes were in use, compared with only 46 UNIVAC's (Chposky, 125). In the 1960s efforts to design and develop the fastest possible computers with the greatest capacity reached a turning point with the completion of the LARC machine for Livermore Radiation Laboratories by the Sperry-Rand Corporation, and the Stretch computer by IBM. The LARC had a core memory of 98,000 words and multiplied in 10 microseconds. Stretch was provided with several ranks of memory having slower access for the ranks of greater capacity, the fastest access time being less than 1 microseconds and the total capacity in the vicinity of 100 million words (Chposky, 147). During this time the major computer manufacturers began to offer a range of computer capabilities, as well as various computer-related equipment. These included input means such as consoles and card feeders; output means such as page printers, cathode-ray-tube displays, and graphing devices; and optional magnetic-tape and magnetic-disk file storage. These found wide use in business f...
