Friday, March 4, 2011

Computer and it's Function

A computers processing unit executes series of instructions that make it read, manipulate and then store data. Test and jump instructions allow to move within the program space and therefore to execute different instructions as a function of the current state of the machine or its environment.
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Thursday, March 3, 2011

Computer are used in various field's

We are all familiar with what a computer is in a specific, contemporary sense. Personal computers are found in most aspects of daily life, and for some it is hard to even imagine a world without them. But the term computer means more than simply the Macs and PCs we are familiar with. A computer is, at its most basic, a machine which can take instructions, and perform computations based on those instructions

Computers range from the very small to the very large. Some are capable of doing millions of calculations in a single second, while others may take long periods of time to do even the most simple calculations. But theoretically, anything one computer is capable of doing, another will also be able to do. Given the right instructions, and sufficient memory, a computer found in a wristwatch should be able to accomplish anything a supercomputer can  although it might take thousands of years for the wristwatch to complete the operation.

Computer and technology

     The computer is one of the most powerful innovations in human history. With the use of computers, people are suddenly able to perform a staggering amount of computations at dazzling speeds. Information can be crunched, organized, and displayed in the blink of an eye. As technology continues to advance, the computer will no doubt become even more pervasive and in many cases, likely even less recognizable.
      Computer like this is often referred to as an embedded computer. An embedded computer is differentiated from a personal computer because it is essentially static in its function. While a personal computer, or some cellular telephones, or some personal organizers are able to have new software installed, and make use of a wide range of features, an embedded computer usually has only a few purposes, which are relatively fixed once the computer is manufactured.

Computer and technology

A
"computer" is commonly considered to be a physical device. However, one can create a computer program which describes how to run a different computer, i.e. "simulating a computer in a computer". Not only is this a constructive proof of the Church-Turing thesis, but is also extremely common in all modern computers. For example, some programming languages use something called an interpreter, which is a simulated computer built on top of the basic computer; this allows programmers to write code (computer input) in a different language than the one understood by the base computer (the alternative is to use a compiler). Additionally, virtual machines are simulated computers which virtually replicate a physical computer in software, and are very commonly used by IT. Virtual machines are also a common technique used to create emulators, such game console emulators.

Artificial intelligence

A computer will solve problems in exactly the way they are programmed to, without regard to efficiency nor alternative solutions nor possible shortcuts nor possible errors in the code.

How does Computer work's (generally Basic)

computers processing unit executes series of instructions that make it read, manipulate and then store data. Test and jump instructions allow to move within the program space and therefore to execute different instructions as a function of the current state of the machine or its environment.The computer can also respond to interrupts that make it execute specific sets of instructions and then return and continue what it was doing before the interruption.

Computer Defination

computer is an programmable machine designed to read and execute sequentially a list of instructions that make it perform arithmetical and logical operations on binary numbers. Conventionally a computer consists of some form of short or long term memory for data storage and a central processing unit, which functions as a control unit and contains the arithmetic logic unit. Peripherals (for example keyboard, mouse or graphics card) can be connected to allow a the computer to receive outside input and display output.