What is a pocket calculator?
Pocket calculator is a small device used to solve mathematical equations. Its range of calculations can be simple or complex depending on the capabilities of the calculator. These calculators have become important assets for students of secondary and universities. Since its introduction of mainstream consumers, the pocket calculator has become a valuable tool for many mathematical problems of the household, such as budgeting and balancing check books. The calculators
, which were first introduced as mechanical machines at the beginning of the 20th century, were often large, impractical and expensive. Electronic calculators first appeared in the 1950s, but they were often the size of a typewriter. In 1967, the first pocket calculator was developed by Texas Instruments, a company that is still one of the leaders in the production, innovation and technologies of pocket calculators. This first calculator could make four basic features - census, subtraction, multiplication and division - and created outputpaper.
When the pocket calculator began to integrate into less and fewer chips and internal functions, the calculators decreased, cheaper and more accessible to the general public. In 1970, the first portable calculators appeared with rechargeable batteries. The technology continued to develop a hand calculator in 70 and 80 years.
Pocket calculator can come in different shapes and sizes with different abilities. They can be made to sit on the table or can be made with larger numbers for hard vision or less agile. They always contain basic numbers 0-9, with decimal material keys, addition, subtraction, division, multiplication, percentage, memory, negatives and cancel button or clear. They use a small display of liquid crystals (LCD), with an internal perimeter plate and integrated memory and calculation chips.
Many pocket calculators are also equipped with a toolEven for trigonometry, statistics or algebra. These are common in the number of numbers at a higher level or trigonometry and can calculate exponents, logarithms, scientific notations and graphs. This type of pocket calculator, known as scientific calculators, works similarly to simpler calculators. Offer the ability to enter data via the numbered buttons; The ability to decide which function to perform, such as division or multiplication; and the ability to solve the equation in fractions of a second.
different from computing and memory -based functions that the computer is capable of, the pocket calculator is able to calculate the general output from different inputs. However, as technology is constantly evolving, the pocket calculator was integrated in computers and mobile phones in 2000. A simple calculator can now be found in most cellular devices, with at least census/subtraction/multiplication/division functions. They are becoming more and more able to calculate through features that also require programming.