Calculator

A calculator is a machine for performing calculations. Although modern calculators often incorporate a general purpose computer, the device is calculated for performing specific operations, rather than for flexibility. Modern calculators are more convenient than most computers, though some Pads are comparable in amount to handheld calculators.

In the past, some calculators were as huge as today's computers. The first automatic calculators were mechanical desktop devices which were replaced by electromechanical desktop calculators, and then by electronic devices using first sung valves, then transistors, then hard-wired integrated circuit logic. New calculators are electrically powered and come in innumerable shapes and sizes varying from cheap, give-away, credit-card sized models to more sturdy adding machine-like models with built-in printers.

Geography and economics

The Ghana is an African country located on the western side of Africa. The neighbor countries are Burkina Faso, Togo, the Atlantic Ocean, and Cote d’Ivoire. It has a population of nearly 18,100, 703 and a population density may be of 197 people per square mile. The Ghana’s area is 92,098 square miles and the official language is English. The capital city is Accra has around 1, 673,000 residents. There are the physical statistics, which is to be considered.

The great strengths of the country are its natural resources. And also, they are very rich. The big export is Cocoa, which totally accounts for 15% of the world's supply. And also the gold production, now a days, it's exported as more as one million fine ounces. Ghana is also supplying bauxite, diamonds, coffee, rice, cassava, timber and rubber. After 1983, the economy has steadily grown. By the economic recovery policies intact, the economy has raised 5% a year since 1983. Tourism development also grows within Ghana. The Tourist rates are also increasing. With these cash crops, costly goods, and economic restructuring, one would wonder why they need assistance at all.