About

Welcome the Anita Calculator simulator site. In the pages of this site you will find a collection of simulators for various calculators associated with the Sumlock Anita company that shone brightly, but all too briefly, in the sixties and early seventies. All the simulators have an association with this company; either they were made at the U.K. factory in Portsmouth, are variants of calculators that were, or were made by companies that were associated with Sumlock Anita during it's existence. The simulators are meant to give a flavour of what these devices were like during that 'golden age' of calculator development. All the images of calculators here (except one of a comptometer) give access to a simulator so that you can try them out for yourselves (simply click on the image). Where possible a manual is provided on this site, or a link to where one may be found is given, if this is available.