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1411371686_59221.doc computer plan: · 1 history of computing · 2 programs · 3 components · 4 misconceptions · 5 further topics computer "computer technology" redirects here. for the company, see computer technology limited. a computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. the particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. an important class of computer operations on some computing platforms is the accepting of input from human operators and the output of results formatted for human consumption. the interface between the computer and the human operator is known as the user interface. conventionally a computer consists of some form of memory, at least one element that carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on the information …

t most people think of as "computers". however, theembedded computers found in many devices from mp3 players to fighter aircraft and from toys to industrial robots are the most numerous. the first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued with the same meaning until the middle of the 20th century. from the end of the 19th century the word began to take on its more familiar meaning, a machine that carries out computations. limited-function early computers the jacquard loom, on display at the museum of science and industry in manchester, england, was one of the first programmable devices. the history of the modern computer begins with two separate technologies, automated calculation and programmability, but no single device can be identified as the earliest computer, partly because of the inconsistent application of that term. a …

swered either yes or no to the questions it was asked.albertus magnus again in the 13th century, the monks and roger bacon built talking androidswithout any further development (albertus magnus complained that he had wasted forty years of his life when thomas aquinas, terrified by his machine, destroyed it). in 1642, the renaissance saw the invention of the mechanical calculator,charles babbage that the computer was first theorized by the mechanical calculator was at the root of the development of computers in two separate ways. initially, it was in trying to develop more powerful and more flexible calculators a device that could perform all four arithmetic operations without relying on human intelligence.electronic calculator secondly, development of a low-cost and then developed., successor to the mechanical calculator, resulted in the development by intelmicroprocessor of the first commercially available integrated circuit. programs the defining feature of modern computers which distinguishes them from all …

e from afortran program. the card reads: "z(1) = y + w(1)" and is labelled "proj039" for identification purposes. this section applies to most common ram machine-based computers. in most cases, computer instructions are simple: add one number to another, move some data from one location to another, send a message to some external device, etc. these instructions are read from the computer's memory and are generally carried out (executed) in the order they were given. however, there are usually specialized instructions to tell the computer to jump ahead or backwards to some other place in the program and to carry on executing from there. these are called "jump" instructions (or branches). furthermore, jump instructions may be made to happen conditionally so that different sequences of instructions may be used depending on the result of some previous calculation or some external event. many computers directly support subroutines by providing a …

t a few simple instructions. for example: mov #0, sum ; set sum to 0 mov #1, num ; set num to 1 loop: add num, sum ; add num to sum add #1, num ; add 1 to num cmp num, #1000 ; compare num to 1000 ble loop ; if num <= 1000, go back to 'loop' halt ; end of program. stop running once told to run this program, the computer will perform the repetitive addition task without further human intervention. it will almost never make a mistake and a modern pc can complete the task in about a millionth of a second. components a general purpose computer has four main components: the arithmetic logic unit (alu), the control unit, the memory, and the input and output devices (collectively termed i/o). these parts are interconnected by busses, often made of groups of wires. inside each of these …

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1411371686_59221.doc computer plan: · 1 history of computing · 2 programs · 3 components · 4 misconceptions · 5 further topics computer "computer technology" redirects here. for the company, see computer technology limited. a computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. the particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. an important class of computer operations on some computing platforms is the accepting of input from human operators and the output of results formatted for human consumption. the interface between the computer and the human operator is known as the user interface. conventionally a computer consists of some form …

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