Page 1 of 27. A computer is a device that can be instructed to carry out an arbitrary set of. arithmetic or logical oper
A computer is a device that can be instructed to carry out an arbitrary set of arithmetic or logical operations automatically. Their ability of computers to follow a sequence of operations, called a program, make computers very flexible and useful. Such computers are used as control systems for a very wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer assisted design, but also in general purpose devices like personal computers and mobile devices such as smart phones. The Internet is run on computers and it connects millions of other computers. Computer Capabilities Speed and accuracy capabilities: A computer works one step at a time. It can add, subtract, compare digits and letters, move and copy numbers and letters. There’s nothing profound in these operations. What is significant is the computer speed. This speed is measured in milliseconds, microseconds, nanoseconds and Pico seconds (Recent study says computer speed is being doubled every six months). The speed required for computers to execute a basic operation like addition varies from a few microseconds for the smallest machines to 80 nano seconds or less for the larger ones. Thus, the slowest computers can perform hundreds of thousands of additions in a second while the largest systems can compute several million additions in the same period. >Jane Doe March 27, 1975 XML Jane Doe 03-27-75 In the HTML version the tags identify formatting options, such as font size and bold. In the XML example, the tags identify the content. Because XML can support business-to-business transactions by making the transmission and interpretation of data easier, it has the potential to become the standard for the exchange of data over the Internet.
