Computers Definition and 240 Threads

If i found a computer on the street and it had no information on the owner or previous user, is it possible to to then find and locate where it had been used and thus a possible owner?

Hi, I hope this is the right forum. I'm doing a school project on how to improve heat dissipation in heat sinks (water primarily) in computers. I've realized that I've taken a larger bite than I can chew, but my teacher wouldn't let me change so, I'll guess I'm stuck with making an honest...

Hey everyone, I've been doing some experiments with analog computers to further my knowledge of op-amps (and second order differential equations!) This is more of a mathematical question than an electrical engineering question, so I thought I'd ask it in this section. I'm looking for some...

I want to be a physics major and I am very interested Astrophysics as a final career path. However recently, after reading a few books about it I have become interested in Information Theory and the prospect of Quantum Computers. I have a very strong Math, Physics, and Computer Science...

I hate computer work i don't like to do programing or any kind of job related to this can i be an Electrical Engineer? I like physics and calculus so much. Please tell me what fields i can work in with details Thank you so much

I want to network two computers using dial up connection. I need help

I've been thinking recently about computers. These are the types of things I've been thinking about: - Are computers intelligent? - Do computers think? - Is it possible for computers to feel or have emotions? - Can computers evolve? Here are some of what I have come up with to these...

When ever i want to do some thing i have to down load some thing, only to find that some thing will not install, so i have to down load some thing to fix it, only to find that i should have down loaded some thing else first, only when i did that it said (this program is all ready installed on...

A question regarding a computers "intelligence" So I've been reading on Boolean logic and understand to a basic degree as to how the computer calculates it's binary but I would like to know how a computer knows where your icons are on a desktop.How does it know that when you click on save the...

I'm a senior student in high school requesting assistance and/or evaluation of a small-scale electrostatic filter for computer usage as a dust remover to prevent or mitigate build up of dust inside a computer. Isometric pictures of the main parts are available. It is basically an...

I want to get a new desktop computer for christmas, one of them $821, and the other is just over 1300 (both with the tax and warranty added). The less expensive one is the Gateway LX6200, and the other, more expensive one is called the Gateway FX. My stepfather apparently isn't willing to...

I have been a Dell fan for about ten years now, but their technical support never ceases to surprise me. I do buy the premium care package, but considering the heavy use my computers get, often in industrial environments, I come out way ahead. What surprises me is how Dell goes out of its...

IBM to build brain-like computers By Jason Palmer Science and technology reporter, BBC News http://news.bbc.co.uk/2/hi/science/nature/7740484.stm

I have a passion for computers/ electronics, but i am going for either chemical or petroleum engineering. I want to ask how much do chemical and petroleum engineers use computers and other electronic devices for their work ? I don't want to do something which involves most of mechanical...

Hi I've been hearing for years now that quantum computers have the potential to render encryption obsolete. My layman's understanding is that it would do this by taking advantage of the fact that qbits can exist in multiple states not just zero and one. I imagine there must be some limit to...

Simple question: Can computers create 'truly' random numbers?

Hi, This is probably a very basic question but it's just something I don't seem to understand... I'm just reading up about quantum computers and how they are supposed to work. I don't know all that much about quantum physics so my ideas might be off, but I might know enough to understand...

There is this system which is build out of 2 units (2 CLA units) and the question is, what does it do? The input numbers are X and Y, which both have 4 digits (binary) each (x0, x1, x2, x3 and y0, y1, y2, y3) and x0y0 for example is an AND gate...

I want to go into research... but i equally like the three fields, ie., Physics, Maths and Computers... I am very confused, I can't understand which direction should I go... Any suggestions? PS. I have done my Bachelors in Computer Science

Hey all, I have a few questions concerning computers for a project I'm working on... I know a significant amount of electronics but not so much on the computer end... Anyways, say I wanted the simple application of controling a light (an LED for example) with my computer - what's the...

Does anyone know of a good estimate of the computing power of all the computers that are on Earth and running. Do you know how large of a biological brain it would be possible to simulate with all this computing power (eg. 100 billion neurons, 500 billion neurons, ect.)? It seems like it...

What Is "ntfs"?why Is It Used In The Computer?please Reply Me Immediately?

Pliz Help me and enlighten me about the numerical and non-numerical applications of computers.

Is in old puters? i have read about a company that re claims gold from them and other electronic components.

Will David Deutsch's famous quantum computers ever be realized? I personally look at MWI as a fairytale sciencefiction hypothesis, so in my opinion other universes DO NOT exist, but can still quantum computers become a reality in single universe terms?

I must admit. I am slowly becoming a tech junkie. I have office 2007, and its great. I use microsoft outlook to link to my msn mail and my school email -sweet. I also downloaded Internet Explorer 7, really really nice program. I have 7 home pages that all load up each time I open IE and it...

computers in my LAN is not seen ! please every one ,,, i have a question ... i wish u can help me i have a LAN , and i can not make ping command in any copmuter in the LAN , also all of the other computer have the same problem , also i can not make sharing for folders between the computers...

Quantum Turing Machine NP-hard problems, such as the 'subset sum problem', or Travelling Salesman Problem (TSP) where n is large have lengthy solutions for a Turing Machine since n can be arbitarily set at a high value. Assume that the whole Universe were made into a Turing computer to solve...

I saw an article http://www.washingtonpost.com/wp-dyn/content/article/2007/01/18/AR2007011801683.html which is talking about how creating a device that slows down light would be necessary to make optical computers. My question is is there already a way to slow down electricity because...

What's the point in studying technology anyway? Isn't the point that it just makes us lazyier and more comfortable? :p

Does anyone know what companies I can/should buy stock in if I want to invest in quantum computers?

I was reading about how to build a computer by yourself. The final step is installing the operating system. I was wondering, how does the operating system give instructions to the computer? When I write a program in java, for example, I rely on the operating system as a crutch to pass my...

There is a computer forum and a brain forum. I don't know which to choose. But I'll go here. Computers made more progress in the last ten years than cars did in the last hundred. But Blue Gene still falls short of the speed attributed to three pounds of goo in my head (20 quadrillion ops per...

It seems like, for the past two or so years, computers have stopped getting faster at the rate that they used to. I mean, I remember back in 2000 or so, they were getting faster and faster and faster so quickly, that your brand-new computer was pretty much obsolete by the time you finished your...

I want to make a small robotic arm and control program like the kind schools use to teach kids about robot arms. I need alittle guidance though, I only know how to use C++ to say "hello world!". How would one go about making a computer program to control a stepping motor? And how do I choose...

Ok I know there was a thread about apple computers somewhere along the line in GD but I will be darned if I can find it so for now I guess I will start a new one. Anyway, my HP computer is in the shop yet again and it seems like it spends more time being fixed than working so I am contemplating...

So, because light is so fast and fiber optic cables can carry 3 different signals at at time and travel at the "speed of light"; why don't we have the technology to develop a computer that uses all fiber optics instead of wires or optics and wires (if your lucky) I'm sure that if we did know...

Physics of Computers...(need help for topics) hey guys, I am new to the boards and I am stumbling on my physics essay, the physics of computers. I need about 20 pages and i don't know what would be some good topics to talk about. thanks

Hello everyone we were given this question to think about, and I wans't sure if my reasoning was right or not, what are your thoughts? #1. It is obvious that using more hardware results in better performance, but that the performance increase is not linear in the amount of hardware added...

Why do people turn on several computers then leave them there ?o:) I think one/4-5 comps -Moon Honey Bee

I am interested to know everyones thought's about the role of computers in pure mathematics. What is the distinction between computer science and mathematics? "Computer science is no more about computers then astronomy is about telescopes."

Is it true to say "computers only do what we tell them to"? If we write any program and we know all the inputs then surely we ought to be able to predict the outputs so long as we know all initial states (including the seed in any pseudo random generator as well as the generator taps). If we...

I'm a math graduate student, but also have great interest in computer capabilities. Chess players once thought that a machine cannot beat the world's best chess players because they cannot plan like humans despite their calculational power. Nowadays, computers are consistently beating the...

I've recently read a few articles on the subject of quantum computers, and I'm curious to when they are going to be developed to the point that they are a recognisable way to process information. Do you think they will be in use within the next 50 years? and why?

I'm not sure exactly what I want to do but I'm sure it's with computers. Do I really need physics? Next year I can only chose 4 or 5 subjects (recommended - not more) so I need to know whether physics is one of them. I can't take math because I'm not in extended (the higher/nerdier group). Any...

This paper states that: This means that the upper bound of computability is "10^{120} ops on 10^{90} bits." Question: does this upper bound apply to quantum computers as well?

anyone know of any simulation programs that let you make quantum programs? It would be kinda cool write programs for a quantum computer.

How many of you "fear" computers How many of you "fear" computers - posting, flaming, downtime, complexity, hackers, spam, dating, etc?

I am new to the physics forums and this is my first post and it is sort of scary but hey. I am looking at an emachines computer to buy. I like the look of it, it is well priced and seems to have possibilities to upgrade in the future. The one hangup is that i read on an online review that you...

When do you all think quantum computers will be a reality? Or I guess I should say when do you think they will be practical? And when this happens, do you think that Electrical Engineers and Computer Engineers will design them? Or do you think that there will be a completely new branch of...