Printing calculators, some call them Adding machines, contain a paper roll on which they print the input and results. These numbers and figures are displayed on the screen as well. Most printing calculators perform only basic mathematical and accounting functions. They generally cost between $30 and $100. Some of the most popular brands are Canon, Casio and Victor.
Graphing calculators perform advanced functions. They have larger memories and are able to store and graph equations. Graphing calculators have a larger screen to display the graphs. Prices range from about $40 to $150. The most popular scientific calculators are made by Hewlett Packard and Texas Instruments.
Display calculators are the most common and basic calculators available. They perform basic math operations such as adding, subtraction, multiplying, and dividing. Many display calculators also have a small memory to store the result. These calculators usually contain an LCD display and many are powered by solar cells. Display calculators are inexpensive and generally cost less than $10. Some of the most popular brands are Canon, Casio, Sharp and Victor
Scientific calculators perform trigonometric functions and have a larger memory than your basic calculator. These calculators usually cost between $20 and $100. Some of the most popular scientific calculators are made by Hewlett Packard and Texas Instruments.
Financial calculators are specially designed to perform financial calculations such as mark-up, gross profit dollars and margin calculations. They usually cost between $10 and $30. Some of the most popular brands are Canon, Casio, Sharp and Victor
Solar Calculators use photovoltaic cells for their energy. They convert sunlight into electrical energy. The photovoltaic (PV) cells, which are made of silicon, absorb part of the light that hits them. This releases electrons and creates an electrical current. The current is transferred to the calculator by metal contacts located on the top and bottom of the photovoltaic cells. These calculator are usually pocket-sized or very portable. There are many brands, which many are given out as promotional items.
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