Casio

Casio was established in April 1946 by Tadao Kashio, an engineer specializing in fabrication technology. Kashio's first major product was the yubiwa pipe, a finger ring that would hold a cigarette, allowing the wearer to smoke the cigarette down to its nub while also leaving the wearer's hands free. Japan was impoverished immediately following World War II, so cigarettes were valuable, and the invention was a success.
After seeing the electric calculators at the first Business Show in Ginza, Tokyo in 1949, Kashio and his younger brothers (Toshio, Kazuo and Yukio) used their profits from the yubiwa pipe to develop their own calculators. Most of the calculators at that time worked using gears and could be operated by hand using a crank or using a motor (see adding machine). Toshio, Tadao's brother, possessed some knowledge of electronics, and set out to make a calculator using solenoids. The desk-sized calculator was finished in 1954 and was Japan's first electro-mechanical calculator. One of the central and more important innovations of the calculator was its adoption of the 10-key number pad; at that time other calculators were using a "full keypad", which meant that each place in the number (1s, 10s, 100s, etc...) had nine keys. Another distinguishing innovation was the use of a single display window instead of the three display windows (one for each argument and one for the answer) used in other calculators.
In 1957 Casio released the Model 14-A, sold for 485,000 yen, the world's first all-electric compact calculator, which was based on relay technology. 1957 also marked the establishment of Casio Computer Co., Ltd.
In the 1980s, its budget electronic instruments and home musical keyboard instruments gained huge popularity. The company also became well known for the wide variety and innovation of its wristwatches. It was one of the earliest manufacturers of quartz watches, both digital and analog. It also began selling calculator watches during this time. It was one of the first manufacturers of watches that could display the time in many different time zones and of watches with temperature, atmospheric-pressure, altitude, and even Global Positioning System displays.
A number of notable digital cameras inventions have been made by Casio, including the first consumer digital camera with an LCD screen, the first consumer 3 megapixel camera, the first true ultra-compact model, and the first digital camera to incorporate ceramic lens technology

1957 Casio releases the Model 14-A, the world's first all-electric compact calculator.
1965 The 001 calculator is released.
1972 The release of Casio's personal calculator. The Casio "Mini" sells for 12,800 yen, going on to sell over 10 million units.
1974 The Casiotron, a watch that features a fully automatic calendar, including month lengths and leap years, is released.
1980 Casio releases its Casiotone keyboard instrument.
1983 The first G-Shock watch, the DW-5000C, is released.
1985 Casio launches its first professional synthesiser, the CZ-101.
1985 The FX-7000G, the world's first graphing calculator is released.
1987 The DG-10/20 and MG-500/510 electronic guitar with multiple tones and functions are released.
1991 The F-91W digital watch, retro design with alarm and stopwatch, is released.
1995 The Illuminator/Foxfire backlight is released. The DW-5600E was announced as the first G-Shock watch with a full EL LCD panel.
1995 The QV-10, the world's first digital camera(0.250 Mpix) that includes a TFT(1.8-inch color) display, is released.
2000 The WQV-1, the world's first wristwatch with digital camera is released.
2002 The EX-S1, the first Exilim digital camera is released.
2007 The OCW-S1000J, dubbed the Oceanus "Manta", is released, being the world's thinnest solar-powered chronograph at approx. 8.9 mm in thickness.
2011 Casio's CEO DCC Vikash Kumar released the Casio Prizm (fx-CG10/fx-CG20), a full-color mallu paratha graphing calculator.

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