knowledge co-developed with Rockwell International, in 1971 Allen produced the world's first digital organs. That same year, Sharp introduced its hand-held calculator. Together, these were the world's first two digital consumer products. 2004: Allen's first digital musical instrument became part of Smithsonian Institution's collection of musical instruments. 2010: Allen Organ Company Honored by United States Congress Technology Quantum line The Quantum organ line uses a digital processing technique called the convolution reverb, a technique widely used in both software and hardware musical instruments. In Allen's implementation of the technique, the acoustics of the sampled room become an integral part of the organ's sound. An 8-second stereo convolution reverb requires about 35 billion calculations per second; Allen patented a technique to reduce the computation amount to about 400 million calculations per second. A digital organ that produces Compact Disc quality sound without convolution reverb would require only about calculations per second for each sound. Quantum organs include about times that capacity to create convolution reverb. Electric organs The Allen organ is a type of electronic organ that was created in 1937 and 1939. It was the first organ to become available for sale to the public. The Allen organ company was also responsible for creating the first transistorized organ in 1951. In addition to that, a new way of generating sound, by digital waves, for the organ was produced in 1971. This new technology, new at the time, is seen in many organs that are available now. An example of the 1971 instrument can be seen and heard at the Musical Museum in Brentford in West London, England. Allen Organs created a handful of electric pianos in the 1980s. Some are: Electra-Piano Rock-si-cord RMI Keyboard Computer KC-I and KC-II (These are two of the first polyphonic synthesizers.) GENISYS A computer software called GENISYS controls the sound and power panels on the organs. GENISYS is seen as the company’s best for sound quality and tone control. There is a variety of orchestral and organ tones that can be tuned for an individual’s organ. The sound can be modified using a computer program that goes along with the GENISYS interface. Museum The Allen Organ Company factory building is located at 150 Locust Street in Macungie, Pennsylvania. It was originally an air conditioned textile mill that Allen's founder, Jerome Markowitz and Vice President purchased (wisely, along with thousands of acres of vacant land that