Anita Mk 8
The Anita Mk 8, made by the Bell Punch Co. of Uxbridge, England, was launched in October 1961. Together with the concurrently introduced Anita Mk VII,
for the continental European market, it was the world's first electronic desktop calculator. It was sold mainly in the rest of the world outside of continental Europe, and was announced at the Business Efficiency Exhibition, in
London, in October 1961, but orders for it were not taken by the British distributor, Sumlock Comptometer Ltd., until January 1st 1962.
This model and the Mk VII were the only electronic desktop calculators in the world for over two years, and many thousands were sold. Like the Mk VII it has a full keyboard and uses cold-cathode tube technology.
Development of the Anita calculators was started in 1956 under Norbert Kitz (a.k.a. Norman Kitz), who had worked on the pilot version of the ACE (Automatic Computing Engine) computer project in the mid 1940s.
The name ANITA, stands variously for "A New Inspiration To Arithmetic" and "A New Inspiration To A
ccounting". This became the family name for all the Bell Punch electronic models.
Display - 12-digits Numerical indicator tubes (similar to "Nixie" tubes).
- One Dekatron decade counter tube of type Hivac GS10D.
- About 180 cold-cathode tubes of types Mullard Z700U and Hivac XC31.
- Selenium rectifiers.
- 10 vacuum tubes (thermionic valves) of type ECC81.
- 1 transistor of type Ferranti ZT42.
A pulse rate of 4 KHz is used by the electronics. This may appear to be very slow today, but it was very fast compared with the mechanical calculators available then, and is acceptable for calculations with the standard four
Size - 376 x 450 x 255 mm (14.75" x 17.75" x 10"), 13.9 Kg (30.5 lbs).
The photographs show the machine with model/serial number C/8/009067/A.
Cost in 1964 was £355 Sterling [about $1000].
Manufactured by the Bell Punch Company, Uxbridge, England.
The Anita machine was built under licence by numerous foreign firms, including Olympia in the United States and Sharp in Japan".
If you can confirm
that other companies did build these machines please contact us.If you have information about the development of Anita calculators, or know of somebody who worked there, please contact us.