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Casio Computer Company, Limited (カシオ計算機株式会社, Kashio Keisanki Kabushiki-gaisha) is a multinational electronics manufacturing company headquartered in Shibuya, Tokyo, Japan. Its products include calculators, mobile phones, cameras, musical instruments and watches. It was founded in 1946, and in 1957 released the world's first entirely electric compact calculator.
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.[1][3]
In 1957 Casio released the Model 14-A, sold for 485,000 yen,[4] 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.
Casio's products include calculators, watches, cash registers, illuminators, digital cameras (Exilim series), film cameras, laptop and sub-notebook computers, mobile phones, electronic keyboards, PDAs (E-Data Bank), electronic dictionaries, digital diaries (early PDAs), electronic games, computer printers, clocks, and portable televisions.
In the 1970s and 80s, Casio was known for its electronic (including scientific) calculators and digital watches. Today, Casio is most commonly known for large, durable watches. Especially popular are its dual function (LCD and analog) watches, some of which, including Wave Ceptor and Pro Trek / Pathfinder series, receive radio signals daily from an atomic clock to keep accurate time. The G-Shock range of shock resistant watches, is also popular, with the 1983 G-Shock DW-5600C being highly sought-after by collectors. Casio made a variety of digital watches with in-built games in the 1980s and 90s, which were highly popular.
Casio also makes products for local markets, including a "Prayer Compass" watch designed to help Muslims pray on time and in the right direction.[8]
Note: This is a list of selected calculators. Figures in parentheses imply approximate year of introduction.
Note: This is a list of selected models.
Notable ranges
Digital camera
PDA/DataBank
Electronic dictionary
Electronic games
Data and video projector
System products
Printing systems
Mobile Phones
Digital diaries (early PDA's: no longer produced)
Game Consoles
Casio EV-SP3900 Electronic dictionary
Cassiopeia PDA
QV-10 Digital camera
EX-S600 Digital camera
Au W31CA Mobile phone
An old Casio calculator
Casio fx-115ES Scientific calculator with Natural Display
fx-991MS Scientific calculator
Casio fx-991EX ClassWiz (High-resolution Natural Textbook Display)
Casio fx-7000G, the world's first graphing calculator
FR-2650T calculator with printer for checkout
NAME LAND KL-P7
PB-770 pocket computer, with FA-11 extension dock
SF-R20 Digital Diary (early PDA)
F-105W watch (left) and fx-300ES scientific calculator (right)
Casio Sport OutGear SGW-400HD-1BV
Casio F-91W Digital watch
DW-5600E-1V A G-Shock watch with one of the first Illuminator
Casio Edifice EFA-111D-7AV watch with 10-year battery life
Casio PRG 60 AVER Triple Sensor Watch
Pro Trek Triple Sensor Watch
Casio "G-Shock" with "Tough Solar" watch
Casio Tough Solar "Wave Ceptor" watch
Casio "Wave Ceptor" Radio-Synchronized Watch
VL-Tone VL-1
Sampletone SK-1
Casiotone 201
CZ-1 digital synthesizer
AZ-1 keytar
PG-380 MIDI Guitar
DH-800 Digital Horn
CTK-496 home keyboard
WK-200 workstation keyboard
Privia PX-130 digital piano
Casio Celviano AP-620
United Kingdom, Japan, Beijing, United States, London
Samsung Electronics, Toshiba, Fujitsu, Japan, Tokyo
South Korea, Tokyo, Hokkaido, Australia, China
Computer algebra system, Linux, Ti-89, Calculus, Chemistry
Casio, Fraction (mathematics), Scientific calculator, Basic, Hong Kong
Basic, Casio, Graphing calculator, Programmable calculator, Casio fx-7000G
Casio, Basic, Casio FX-602P series, Programmable calculator, Pocket Computer
Casio, Basic, Graphing calculator, Programmable calculator, Pocket viewer
Casio, Programmable calculator, Basic, Scientific calculator, Casio FX-502P series