New Casio Calculator input result into your PC
 The Casio MZ-120WL and Casio JZ-120WL calculators are bundled with USB dongle to enable a wireless connection to use it as a 10 key number type pad. The Casio MZ-20 is connected directly via USB. You entries can be set to auto transfer to your PC or to manual mode where you press a key to sent the result to the PC.
Since many people who still have a normal calculator on the desk next to their PC keyboard, this is a good ideal. Casio introduces calculators with a wireless and USB PC interface and will ship the new calculator's in September 2005. An interesting note - All new Casio calculators now comes with built-in solar cells. You can expect the Casio Calculator to have an extremely long battery life. 
Canon Calculator
1968 - 2004
1968 - Canon 1200 - Resistance and transistor Hybrid machine, 12 digits display
1982 Canon CA-2000 - Electronic Chinese character dictionary, prototype of word processor
2004 - Canon KS-1200TKM - Control ball attachment, Ten-key portable calculator
Casio Calculator
1978 Casio 805-MR
1977 Casio R-320
1976 Casio AL-8
Casio Biolator
Casio Memory 8A Japan
Casio Personal M-1
1975 Casio "pocket" 8S
1975 Casio 803-MR
1975 Casio CP-801B
1975 Casio fx-101
1975 Casio Pocket LC
1974 Casio fx-10
1972 Casio 'Mini'
1971 Casio fx-1 scientific desktop calculator
1965 release of the transistor-based Model 001
1957 Launched Model 14-A Electric Calculator and a name changed to
1957 Changes its name to CASIO COMPUTER CO., LTD.
1946 Tadao Kashio started Kashio Seisansho
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In 1964 and 1971, Canon produced the world's first 10 key calculator, 'Canola 130', and the world's first printing calculator,'Pocketronic', respectively. Since then, Canon has successfully developed and improved its calculator business, and are continually introducing new products into the market. In order to keep prices competitive and production cost to a minimum, Canon Calculator Group shifted its production and R &D away from 'AMI' Plant in Japan, over to Taiwan vendors in 1986 followed by mainland China, Thailand and Malaysia. In 1991, to make business operations more efficient and easily monitored, Canon Calculator Group decided to centralise its monitoring body where CEBM was established in Hong Kong and started its operation in July 1992.