Ball

Balls are objects typically used in games. They are usually hollow and spherical but can be other shapes, such as ovoid or solid. In most games using balls, the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used for more simple activities, such as, Catch, Marbles and Juggling. Balls made from hard-wearing metal are used in engineering applications to provide frictionless bearings, known as ball bearings. Although lots of balls are today made from rubber, this form was unknown outside the Americas until after the voyages of Columbus. The Spanish were the first to see bouncing rubber balls which were employed most remarkably in the Mesoamerican ballgame. Balls used in various sports in other parts of the world prior to Columbus were made from other materials such as animal bladders or skins, stuffed with various materials.

Joystick

A joystick is a personal computer tangential or general control device consisting of a handheld stick that pivots about one end and transmits its angle in two or three dimensions to a computer. Joysticks are often used to control video games, and generally have one or more push-buttons whose state can also be read by the computer. The term joystick has become a synonym for game controllers that can be connected to the computer since the computer defines the input as a "joystick input”. Apart for controlling games; joysticks are also used for controlling machines such as elevators, cranes, trucks, powered wheelchairs and some zero turning radius lawn mowers. More lately miniture joysticks have been adopted as navigational devices for smaller electronic apparatus such as mobile phones.

ALU

The arithmetic logic unit (ALU) is a digital circuit that calculates an arithmetic operation (addition, subtraction, etc.) and logic operations (Exclusive or, AND, etc.) between two numbers. The ALU is a basic building block of the central processing unit of a computer. Many types of electronic circuits require performing some type of arithmetic operation, so even the circuit within a digital watch will have a tiny ALU that keeps adding 1 to the current time, and keeps checking if it should beep the timer, etc...

By far, the most complex electronic circuits are those that are built within the chip of modern microprocessors like the Pentium. Therefore, these processors have inside them a powerful and very complex ALU. In fact, recent microprocessor (or mainframe) may have multiple cores, each core with multiple execution units, each with multiple ALUs.

Coffee

Coffee is a generally consumed beverage prepared from the roasted seeds — usually referred to as beans — of the coffee plant. Though sometimes served cold, it is classically served hot. A typical 7 fluid ounce cup of coffee contains 80–140 milligrams of caffeine, depending on the bean and method of roasting and preparation.Some people drink coffee "black" (plain), others sweeten their coffee or add milk, cream or non-dairy creamer. Coffee represents 71% of all the caffeine consumption in the United States, followed by soft drinks and tea.Coffee, along with tea and water, is one of the the majority popular beverages world-wide, its volume amounting to about a third of that of tap water in North America and Europe.In 2003, coffee was the world's sixth largest agricultural export in value, behind wheat, maize, soybeans, palm oil and sugar.

Business

In economic business is the social science of managing people to systematize and maintain collective productivity toward accomplishing particular imaginative and productive goals, usually to make profit.The etymology of "business" refers to the state of being busy, in the circumstance of the individual as well as the community or society. In other words, to be busy is to be doing commercially viable and profitable work.

The term "business" has at least three usages, depending on the scope — the general usage (above), the particular usage to refer to a particular company or corporation, and the comprehensive usage to refer to a particular market sector, such as "the record business," "the computer business," or "the business community" -- the community of suppliers of goods and services.

The singular "business" can be a legally-recognized entity within an economically free society, wherein individuals systematize based on expertise and skill bring about social and technological expansion.

However, the exact definition of business is disputable as is business philosophy; for example, most Marxist use "means of production" as a rough synonym for "business." Socialist advocate either government, public, or worker ownership of most sizable businesses.