The calculator has the ability to save the number into memory. Machine type number can be saved with just one number at a time. More specific types of machines can record multiple shows with a number of different variables. Those variables can be used to create mathematical formulas. Some models have the ability to expand the memory space to save a number more. By an extended position, will be referenced by the array index.The source of energy is solar cell batteries, calculators or electric (for older machines). Turn the machine on with switch or button to open some models do not have even the off button, but there are some methods that make the machine off, such as leave no action over a period of time or off solar array CAP, etc.Operation system makes the calculator is a type of information technology because the information was entered into the processor and then released the information that need.Benefits of the calculator is. 1. allows the calculation result, fast, convenient, without the user having to think for itself.2. easy to carry.3. When you're done tasks traverse calculation sensitivity makes progress.4. don't take paper and pencil.5. accurate resultsBecause the calculator beckons facilities to users, so it may affect the following.1. the user does not have the brain to think the calculation.2. the cause of thinking could result in reduced brain atrophy.3. make users stuck with comfort might forget to try to do it manually.
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