The IRSâs audit priorities fall into four areas: 1  Tax return ânon-filers and underreporting of income.â The IRS now estimates that there may be as many as of 8.6 million non-filers. 2  This number is up from about 6 million estimated non-filers just a few years ago.
Jack Kilby, in full Jack St. Clair Kilby, (born Nov. 8, 1923, Jefferson City, Mo., U.S.âdied June 20, 2005, Dallas, Texas), American engineer and one of the inventors of the integrated circuit, a system of interconnected transistors on a single microchip.
Jack Kilby's Other Inventions. Jack Kilby has been awarded more than sixty patents for his inventions. Using the integrated circuit, Jack Kilby designed and co-invented the first pocket-sized calculator called the Pocketronic. He also invented the thermal printer that was used in portable data terminals. For many years Kilby was involved in the invention of solar powered devices.