The Texas Instruments calculator is the great, great, grandaddy of hand held calculators. The Texas Instruments calculator was first invented and marketed in 1967 at a cost of $2,500 (that is the equivalent of $16,650 dollars in 2011.) In 1971 the single processor Texas Instruments calculator his the marketplace, dropping the cost of the hand-held calculator into the price range of a consumer product. In 1972, with the introduction of the TI-2500, the Texas Instruments [...] Read more »
The Financial Calculator
The financial calculator is a special device used to calculate loans and mortgages. It is basically a simple device specifically built for the calculation of different financial matters such as loan rates, interest rates, mortgage rates and so on. There are 3 basic types of financial calculators such as: 1. The loan calculators. This type of calculator is used to make the users understand the amount of a loan which needs to be payed along [...] Read more »