subtract circuit
21Calculator — For mechanical precursors to the modern calculator, see mechanical calculator. For other uses, see Calculator (disambiguation). An electronic pocket calculator with a 7‑segment LCD display, that can perform basic arithmetic operations …
22Uninterruptible power supply — A small free standing UPS …
23Antenna (radio) — Whip antenna on car …
24Gimli Glider — Air Canada Flight 143 Air Canada flight 143 landed on an auto dragstrip at Gimli, MB Accident summary Date 23 July 1983 …
25Sumlock ANITA calculator — The ANITA Mark VII and ANITA Mark VIII calculators were launched simultaneously in late 1961 as the world s first all electronic desktop calculators. Designed and built by the Bell Punch Co. in Britain, and marketed through its Sumlock… …
26Micro Instrumentation and Telemetry Systems — MITS logo used from 1972 to 1975. Micro Instrumentation and Telemetry Systems (MITS) was an American electronics company founded in Albuquerque, New Mexico that began manufacturing electronic calculators in 1971 and personal computers in 1975.[1] …
27Castle Rock Entertainment, Inc. v. Carol Publishing Group — Infobox Court Case name = Castle Rock Entertainment Inc. v. Carol Publishing Group court = United States Court of Appeals for the Second Circuit date decided = July 10, 1998 full name = Castle Rock Entertainment Inc. v. Carol Publishing Group Inc …
28Differences between Malaysian and Indonesian — The differences between Malaysian (Bahasa Malaysia) or Malay (Bahasa Melayu) and Indonesian (Bahasa Indonesia) are significantly greater than those between British English and American English. They are roughly mutually intelligible, but with… …
29Massachusetts Bay Transportation Authority — The MBTA provides services in five different modes (boat not pictured) around Greater Boston …
30ENIAC — [ Betty Jean Jennings (left) and Fran Bilas (right) operate the ENIAC s main control panel at the Moore School of Electrical Engineering. (U.S. Army photo from the archives of the ARL Technical Library)] ENIAC, short for Electronic Numerical… …
