tag:blogger.com,1999:blog-43402571284990393072011-11-27T16:09:06.778-08:00Deepakhttp://www.blogger.com/profile/12004053610263134820noreply@blogger.comBlogger21100tag:blogger.com,1999:blog-4340257128499039307.post-24141513610034376222007-12-14T01:42:00.000-08:002007-12-14T02:13:16.852-08:00<div align="justify"><span style="font-family:arial;"></span> </div><div align="justify"><span style="font-family:arial;">A computer is a </span><a title="Machine" href="http://en.wikipedia.org/wiki/Machine"><span style="font-family:arial;"><em>machine</em></span></a><span style="font-family:arial;"> which manipulates </span><a title="Data (computing)" href="http://en.wikipedia.org/wiki/Data_%28computing%29"><span style="font-family:arial;"><em>data</em></span></a><span style="font-family:arial;"> according to a list of </span><a title="Code (computer programming)" href="http://en.wikipedia.org/wiki/Code_%28computer_programming%29"><span style="font-family:arial;"><em>instructions</em></span></a><span style="font-family:arial;"><em>.</em><br />Computers take numerous physical forms. The first devices that resemble modern computers date to the mid-20th century (around 1940 - 1941), although the computer concept and various machines similar to computers existed earlier. Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers.</span><a href="http://en.wikipedia.org/wiki/Computer#_note-0"><span style="font-family:arial;">[1]</span></a><span style="font-family:arial;"> Modern computers are based on comparatively tiny </span><a title="Integrated circuit" href="http://en.wikipedia.org/wiki/Integrated_circuit"><span style="font-family:arial;"><em>integrated circuits</em></span></a><span style="font-family:arial;"> and are millions to billions of times more capable while occupying a fraction of the space. </span><a href="http://en.wikipedia.org/wiki/Computer#_note-1"><span style="font-family:arial;">[2]</span></a><span style="font-family:arial;"> Today, simple computers may be made small enough to fit into a </span><a title="Watch" href="http://en.wikipedia.org/wiki/Watch"><span style="font-family:arial;"><em>wrist watch</em></span></a><span style="font-family:arial;"> and be powered from a </span><a title="Watch battery" href="http://en.wikipedia.org/wiki/Watch_battery"><span style="font-family:arial;"><em>watch battery</em></span></a><span style="font-family:arial;"><em>. </em></span><a title="Personal computer" href="http://en.wikipedia.org/wiki/Personal_computer"><span style="font-family:arial;"><em>Personal computers</em></span></a><span style="font-family:arial;"> in various forms are icons of the </span><a title="Information age" href="http://en.wikipedia.org/wiki/Information_age"><span style="font-family:arial;"><em>information age</em></span></a><span style="font-family:arial;"> and are what most people think of as "a computer". However, the most common form of computer in use today is by far the </span><a title="Embedded computer" href="http://en.wikipedia.org/wiki/Embedded_computer"><span style="font-family:arial;"><em>embedded computer</em></span></a><span style="font-family:arial;">. Embedded computers are small, simple devices that are often used to control other devices—for example, they may be found in machines ranging from </span><a title="Fighter aircraft" href="http://en.wikipedia.org/wiki/Fighter_aircraft"><span style="font-family:arial;"><em>fighter aircraft</em></span></a><span style="font-family:arial;"> to </span><a title="Industrial robot" href="http://en.wikipedia.org/wiki/Industrial_robot"><span style="font-family:arial;"><em>industrial robots</em></span></a><span style="font-family:arial;"><em>, </em></span><a title="Digital camera" href="http://en.wikipedia.org/wiki/Digital_camera"><span style="font-family:arial;"><em>digital</em> <em>cameras</em></span></a><span style="font-family:arial;"><em>,</em> and even </span><a title="Toy" href="http://en.wikipedia.org/wiki/Toy"><span style="font-family:arial;"><em>children's toys</em></span></a><span style="font-family:arial;">.</span></div><div align="justify"><br /><span style="font-family:arial;">The ability to store and execute lists of instructions called </span><a title="Computer program" href="http://en.wikipedia.org/wiki/Computer_program"><span style="font-family:arial;"><em>programs</em></span></a><span style="font-family:arial;"> makes computers extremely versatile and distinguishes them from </span><a title="Calculator" href="http://en.wikipedia.org/wiki/Calculator"><span style="font-family:arial;"><em>calculators</em></span></a><span style="font-family:arial;"><em>.</em> The </span><a title="Church–Turing thesis" href="http://en.wikipedia.org/wiki/Church%E2%80%93Turing_thesis"><span style="font-family:arial;"><em>Church–Turing thesis</em></span></a><span style="font-family:arial;"> 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 with capability and complexity ranging from that of a </span><a title="Personal digital assistant" href="http://en.wikipedia.org/wiki/Personal_digital_assistant"><span style="font-family:arial;"><em>personal digital assistant</em></span></a><span style="font-family:arial;"> to a </span><a title="Supercomputer" href="http://en.wikipedia.org/wiki/Supercomputer"><span style="font-family:arial;"><em>supercomputer</em></span></a><span style="font-family:arial;"> are all able to perform the same computational tasks given enough time and storage capacity.</span></div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4340257128499039307-2414151361003437622?l=d-itech.blogspot.com' alt='' /></div>Deepakhttp://www.blogger.com/profile/12004053610263134820noreply@blogger.com2tag:blogger.com,1999:blog-4340257128499039307.post-86327785609721890562007-12-11T23:23:00.000-08:002007-12-11T23:26:00.489-08:00<span style="font-family:times new roman;">NetBeans 6.0 Integrated Development Environment (IDE) increases developer productivity with a smarter, faster editor, Ruby/JRuby/Ruby on Rails support, enhancements for improved Swing development, a new Visual Game Designer, updated Data Binding support, integrated Profiling, and more. </span><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4340257128499039307-8632778560972189056?l=d-itech.blogspot.com' alt='' /></div>Deepakhttp://www.blogger.com/profile/12004053610263134820noreply@blogger.com2