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A computer is a machine for manipulating data according to a list of instructions known as a program.

Computers are extremely versatile. In fact, they are universal information-processing machines. According to the Church–Turing thesis, a computer with a certain minimum threshold capability is in principle capable of performing the tasks of any other computer, from those of a personal digital assistant to a supercomputer, as long as time and memory capacity are not considerations. Therefore, the same computer designs may be adapted for tasks ranging from processing company payrolls to controlling unmanned spaceflights. Due to technological advancement, modern electronic computers are exponentially more capable than those of preceding generations (a phenomenon partially described by Moore's Law).

Computers take numerous physical forms. Early electronic computers were the size of a large room, and such enormous computing facilities still exist for specialized scientific computation — supercomputers — and for the transaction processing requirements of large companies, generally called mainframes. Smaller computers for individual use, called personal computers, and their portable equivalent, the laptop computer, are ubiquitous information-processing and communication tools and are perhaps what most non-experts think of as "a computer". However, the most common form of computer in use today is the embedded computer, small computers used to control another device. Embedded computers control machines from fighter aircraft to digital cameras.

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Exactly RT @jeremy_lim: So true! RT @earnchen: people who are aggressive behind their computers are usually timid in real life. true?
TheEyeOfEden (Eden Cai) Thu, 05 Nov 2009 16:11:27 -0000
Exactly RT @jeremy_lim: So true! RT @earnchen: people who are aggressive behind their computers are usually timid in real life. true?
Not the same w/o Pandora...I got Pandora on my TV at the crib, all computers, & blackberry phone. It's a must!
SmugLyfe (Brien Neal) Thu, 05 Nov 2009 16:10:35 -0000
Not the same w/o Pandora...I got Pandora on my TV at the crib, all computers, & blackberry phone. It's a must!
@Vanilla_Vixen U BETTER DO UR WORK AND STOP USING THE COMPUTERS.
MRSBREEZY_DAY26 (cristina w. curry) Thu, 05 Nov 2009 16:10:32 -0000
@Vanilla_Vixen U BETTER DO UR WORK AND STOP USING THE COMPUTERS.
uhh my internet isnt working in computers & i realllly need it to do my web page project !
alexaaandra_ (Alexandra Dukelis) Thu, 05 Nov 2009 16:09:59 -0000
uhh my internet isnt working in computers & i realllly need it to do my web page project !
RT @Calgary_TECH: Remedy Developer - METAFORE: Location: Calgary, AB, CANADA Job Category: Computers-Support Ser http://bit.ly/CmzAB #jobs
R4Remedy (Remedies4Remedy) Thu, 05 Nov 2009 16:09:58 -0000
RT @Calgary_TECH: Remedy Developer - METAFORE: Location: Calgary, AB, CANADA Job Category: Computers-Support Ser http://bit.ly/CmzAB #jobs
Joe, , has given loan amount of 4150 to El Vallecito Group, , Peru. Reason: Buy used computers
kivalendactivts (KivaLendinActivitis) Thu, 05 Nov 2009 16:09:52 -0000
Joe, , has given loan amount of 4150 to El Vallecito Group, , Peru. Reason: Buy used computers

 
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