Computer


A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format.
Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945).
These were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).
Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.
Simple computers are small enough to fit into small pocket devices, and can be powered by a small battery.
Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers".
However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.
The ability to store and execute lists of instructions called programs makes computers extremely versatile, distinguishing them from calculators.
The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform.
Therefore computers ranging from a notebook to a supercomputer are all able to perform the same computational tasks, given enough time and storage capacity.


Source: Wikipedia

HOME

computer_picture 003 computer_picture 004 computer_picture 009 computer_picture 011 computer_picture 016
computer_picture 017 computer_picture 019 computer_picture 020 computer_picture 023 computer_picture 024
computer_picture 034 computer_picture 038 computer_picture 039 computer_pictures 001 computer_pictures 003
computer_pictures 004 computer_pictures 005 computer_pictures 006 computer_pictures 007 computer_pictures 008
computer_pictures 009 computer_pictures 010 computer_pictures 011 computer_pictures 013 computer_pictures 014
computer_pictures 015 computer_pictures 016 computer_pictures 017 computer_pictures 018 computer_pictures 019
computer_pictures 020 computer_pictures 021 computer_pictures 022 computer_pictures 023 computer_pictures 024
computer_pictures 026 computer_pictures 028 computer_pictures 029 computer_pictures 033 computer_pictures 034
computer_pictures 035 computer_pictures 036 computer_pictures 037 computer_pictures 038 computer_pictures 039
computer_pictures 040 computer_pictures 041 computer_pictures 044 computer_pictures 045 computer_pictures 049
computer_pictures 051 computer_pictures 057 computer_pictures 058 computer_pictures 066 computer_pictures 073
computer_pictures 074 computer_pictures 075 computer_pictures 077 computer_pictures 080 computer_pictures 086
computer_pictures 088 computer_pictures 089 computer_pictures 090 computer_pictures 091 computer_pictures 092
computer_pictures 093 computer_pictures 097 computer_pictures 099 computer_pictures 100 computer_pictures 104
computer_pictures 105 computer_pictures 106 computer_pictures 107 computer_pictures 110 computer_pictures 112
computer_pictures 113 computer_pictures 114 computer_pictures 116 computer_pictures 119 computer_pictures 120
computer_pictures 122 computer_pictures 125 computer_pictures 126 computer_pictures 127 computer_pictures 128
computer_pictures 130 computer_pictures 133 computer_pictures 134 computer_pictures 136 computer_pictures 137
computer_pictures 139 computer_pictures 140 computer_pictures 143 computer_pictures 148 computer_pictures 151
computer_pictures 153 computer_pictures 155 computer_pictures 157 computer_pictures 158