What is a computer?

  United States Information Technology Association identified /we say IT/ Information technology is computer-based information systems, software and hardware design, development, implementation, and research management of supply. This is of course, a comprehensive understanding. Information technology is now building globalized world. Earth is faster development is information technology and wide range of information. Information technology is professionals, we know hardware, software, communications technology, information. Information data transfer, internet, web, engineering and computer service managing, storing and receiving. IT experts are they do.  

  Computer user are now many have been. World is population  7.300.541.677 in today 2016.02.20. We are reading now when 5 people, 5 people are growing in 1second. At the same computer users, information technology users growing so faster. First computer story is British mathematician Charles Babbage in the early 1820s, developed mechanical computer called Difference Engine, and be able to remove additional number of 20 digits 10tyn.  By 1953, were used 100 computers around the world. 1974 - produced computer users for the first. 1976 - 1977 - Apple Corporation was established supplied market Apple 1 computer market. / Stephen Jobs / 1980 since - began developing MSDOS operating system, 1985 - began developing Windows operating system. We always use computer /desktop, laptop, notebook/ in home, work, school.

  Computer is data processing work easier, and have many more device. Computer have many peripherals, data input device is working on include any device that is processing, the output device is a device working on all of your data, images, sounds and text to you and Memory device. Example: we know Input device, Computer mouse, graphics tablet, touchscreen, barcode reader, scanners, web cameras, microphone    Output devices are computer screen, speakers, printer. Memory devices are floppy disk drive, flash drive, disk drive, smartphone or tablet memory interface CD / DVD drive. Input output are  modem, Network card (NIC).

  Computer network is a computer (printers, cameras and other information associated with the use of communication channels ...), or cable connections complex structures and the airwaves. Network with the following purposes: creating relationships. Network with people with e-mail, instant messaging, and can communicate efficiently and easily chat rooms, telephone, video telephone calls, and video conferencing. Hardware. In a networked environment, each computer can use the hardware on the network. For example, printing with a printer document on the application. Files, data, and information (shared). user network environment, access to data and information stored on other computers on the network. on access to data and data storage devices is an important feature of many networks. Application software together. Connected to a network, users can run the software on a computer in a network.

  Improvements are computer network business is important parameter. You will need to re-evaluate the people in your data base grows. Computer network business will be high development.