Computer Definition and 998 Threads

I would like to start building small electrical projects but it's been a very long time since I studied circuit analysis in college. I figured that there are probably some computer programs that would help people like myself to design simple circuits. A quick Google search led me to this site...

Just for fun let's imagine a dream PQC (Personal Quantum Computer) from the future: Specifications: - 4MQ Processer (4MQ = 4 Mega Qubits) - 1TB Time Crystal Memory - 2PB Atomic Storage Hard Drive (Peta Byte=1000TB) - 3D Quantum Dot Screen with built in Holographic Display - All in one Quantum...

Hi Fellas could someone kindly check my solution, please. Homework Statement Calculate the force of gravity between you and your computer monitor. Estimate suitable values. (Women: 40 kg to 60 kg, men: 50 kg to 80 kg). Why have you not noticed this force? Homework Equations Fg =...

I've always liked news about computers that beat humans at games. I recall the milestones; checkers, backgammon, chess, jeopardy, go, and now Texas hold-em poker ( the modern and most popular variant of poker nowadays ). When a computer won at Go not too long ago, I told my friends who play...

I am try to build a magnetic motor using a computer fan on the basis of a video I saw on YouTube. I have placed 4 neodymium magnets at the edges of the fans frame. However the fan has failed to spin from the magnetic field created by the magnets. How can I find the correct orientation in order...

phinds submitted a new PF Insights post Computer Langauge Primer - Part 1 Continue reading the Original PF Insights Post.

I am a high school junior who has completed the AP Physics C mechanics and E&M courses. I know that further down the road I will need to learn some programming. I have a little bit of time on my hands to get a start on this, but have no experience with computer programming. I have read I should...

i want to do the certification programme in ccna & ccnp for network engineering. is it good for me to do?

Would it be possible to make a quantum computer with fluidic logic (https://en.m.wikipedia.org/wiki/Fluidics), using a superfluid, like liquid Helium-4, as the the "current"?

https://www.dropbox.com/s/be52pax3jezv3cb/IMG_20170128_170143.jpg?dl=0 https://www.dropbox.com/s/be52pax3jezv3cb/IMG_20170128_170143.jpg?dl=0 I have question what causes vertical lines on the photo of the screen of my laptop? But I would like to find out it alone. Could someone lead me? I know...

Hello everyone I am new here so please forgive me if I am posting this question at wrong place. I am pursuing Biomedical Engineering (2nd semester undergraduate). I am interested in Brain Computer Interfacing and want to study about it. So could anyone suggest me any good book to read that...

Hello everyone, I am in my first year at University, and I have to choose what discipline to enter. I am passionate about designing, testing, and implementing various ways to solve problems, and I found I can do this in both disciplines just in different ways. From previous job experience, I...

Hi, I wanted to start this topic to discuss what are real advances in Computer Science (CS) that actually have contributed to the world, both to sciences and academia, as well as to the industries and common people. Usually, the discoveries on Physics, Engineering, Chemestry and Biology are...

I'm currently a Computer Science major, but I'm really into physics and I was wondering if there is any practical benefit to getting a physics minor, or even a major. Is there anyone looking for people with a background in both physics and CS? And would a minor (or even a major) be enough...

Are computer files the only way a computer stores data/digital information?

https://www.washingtonpost.com/world/national-security/russian-hackers-penetrated-us-electricity-grid-through-a-utility-in-vermont/2016/12/30/8fc90cc4-ceec-11e6-b8a2-8c2a61b0436f_story.html?utm_term=.3d3f0ce2546f Source: Signs of Russian Hack Found in Vermont Utility System | NBC Chicago...

Homework Statement A group of students found an old DC electric motor in a box. They were looking for a small generator they could use to power their computer while they were out camping. Explain how they might do this with the motor they found. Homework EquationsThe Attempt at a Solution

Hi all, I am going to apply for graduate school next fall but I am not sure what computer language is most frequently used in astronomy/cosmology graduate programs. Any ideas? Also, in the mean-time I want to work and earn some money before I apply next year. What jobs...

Does computer software/the internet/information in general have any mass? Or is it just pure energy?

Hey there! As the title implies, I'm looking for a new computer, and I'm thinking of going with a MAC this time. See, I'm in my first Semester of Physics (here we don't take courses per se, we get into a specific branch of a University and we attend the lectures mandated by said branch, we can't...

Greetings all In the mid 1960s Raytheon developed the first microcomputer chip ICs and Rope Memory that would get us to the moon. Apparently within a mere 10 years these historic small steps that were more than a decade ahead of their time and of considerable historic value were auctioned off...

So the problem asks: A computer server runs smoothly for Exp(0.2) days and then takes Exp(0.5)days to fix. The server is running fine on Monday morning, t=0. Find the probability that the server was fixed at least once (i.e. at least one complete repair was done) in the next 7 days and the...

Sorry i wonder if i download a lot of files/documents from the websites into the computer,then how much weight did the computer gains in terms of kg or g Why didn't the computer appear to gain weight after downloading a lot of files? by the way how did i convert mb/gb into kg ?thank you

I am wondering whether it would be possible for the analog circuitry itself to change DURING the time an analog computer does computations. Over and above the above mentioned question, is it possible that the circuitry itself can change DURING simulations, while this change in the circuitry is...

Hello PF, I'm a high school student in a math and science program. I'm currently planning on doing a double major in math and computer science, and I have a couple questions. Firstly, are there areas of computer science that heavily use math and require originality? I understand that most likely...

Hi. I don't know if this is the right place to post this but I had a feeling that many of you might have some ideas on this. I have to write a research report on Advanced Computer Architecture. It can be about pipelining, branch prediction, memory or whatever. I want something really interesting...

Hello PF, I am a physics sophomore this year and i took a course on java programming as an elective. And i just loved it! Really the harder it became the more i liked it. So i decided that i want to do something about it. But i don't know if a minor or a major is better for a physics major. And...

Homework Statement I don't quiet understand the concept of multi-threading in computer architecture. What I understand so far is that with multi-threading, instructions can be executed in a pipe-line without dependencies as long as they are not on the same thread. This doesn't make sense to me...

Hello people, I am currently a computer science student and I think that what I am doing is not making any sense. Everyday I wake up and go to a class that doesn't make any sense to me. I study just to pass a foolish exam. That's not learning. That's not life. The reason why I chose computer...

If instead of electrons, which are spin 1/2 particles, we could use photons, which are spin 1, could we use this fact to have a three valued logic (1,0,-1) ? How to store photons like in an electronic computer to build the memory ? Are there techniques that allow that ? Thanks.

I sort of understand how a computer chip works and what is its architecture. But how is it made? I mean, a chip contains billions of transistors, each having a microscopic size. Each transistor must be put at a very precise place. How do they control the position of a single tiny transistor? And...

1) If a computer has a 1 GHZ processor, does that mean it can process 1 billion bytes of data per second? 2) If the answer was no to the first question, how does one determine how many bytes of data a computer can process per second?

when they say c.s., do they mean a coding language? if so, which one(s)?

Dear friends. I am a cardiovascular health researcher writing on behalf of my research team based in Copenhagen, Denmark. We plan to conduct a high-altitude field study on cardiopulmonary function assesed by ultrasound on Aconcagua summit in near 7000 meters altitude. Reports say it will be...

I wanted to ask you when we finish high school and go to university for studying bachelor of technology in computer science are there jobs that high school students do regarding programming with companies through programming they have learn in ap courses in grade 12 that i wanted to know

Homework Statement In this problem you will do numerical computer calculations. A skydiver of mass 75.0 kg jumps out of a plane at an altitude of 30.0 km above the surface of the Earth. His parachute fails to open. Assume there is no horizontal motion and the initial velocity is zero. We...

Homework Statement Between 1985 and 1995 the number of computers in thousands sold in Canada is estimated by c(t) = 0.92(t^3 + 8t^2 + 40t +400) In what year did home computers sale reach 1.5 million? Homework EquationsThe Attempt at a Solution I know I have to isolate the t to obtain time. So...

I wanted to know which one was better for finding jobs and salary wise or are both pretty much the same. Computer Science or Software Engineering degree? Also would anyone recommend getting the degree online?

Good Day. I currently am running windows 10 on my Laptop & Desktop. I do enjoy it though I would like some customization with my OS. I was thinking of Linux (Ubuntu, Zorin, RedHat) as I can further my System administration work and progress to cyber/information security. For information...

Hello! I am a first year student studying Physics. I chose Physics because I really like it. But now that my classes have started, Physics seems a little more demanding than what I previously had in mind. I am also keenly interested in Computer Science. So, I can't decide between the two...

Hello, I am using an arbitrary idea here to illustrate a question about computer modeling. I have a mechanical fan that uses xx power to produce a wind velocity of 50 mph in a calm environment. I want to know if a consistent wind blowing at 48 mph in the same direction as the fan is blowing...

I've probably been wondering about this questions for years now. Why is it that even some of the best works fall short of looking undoubtedly real? Whether the face is plastic, or just on a screen, why is it that it looks unreal? Is it the lack of fine detail? I know there are exceptions but...

How to increase external information processing speed / power of a Computer / CPU? When I say external information, I mean external stimuli. When I say processing speed, I mean the speed at which the CPU / Computer processes external stimuli. So for example, one Computer might take 10 seconds...

I have a really old (not sure how old) pc but it keeps blinking pink(ish) and green colors and the left button on the mouse pad will click but the derned PC thinks I'm holding it down sometimes.

im a senior high school student from India have about 3 days in hand having difficulty in deciding between the two careers. I am planning to peruse undergraduate in USA but in a big confusion Can someone put a clear image about these two branches of engineering as i am unclear about their job...

Dear All, Can some one help me of how to connect qVt MCA 3001 (from Lecroy) to a personal computer? What is needed for it? and software required after connecting will also be helpful to me. Thanks and regards, Raj.

Hello,I just graduated from high school and i will be starting university in fall 2016 at the University of Manitoba in Canada. They have a joint degree program in physics and computer science which is a program I'm considering since, I enjoy studying about both disciplines. I would like your...

Hi, I'm a retired computer programmer (of mostly business applications). I wondered if anyone could tell me if anyone has used programming to investigate the dimensionless physical/mathematical constants in a random way. By random way I mean: write a program to randomly generate an equation...

I am currently a computer engineering student , in my second year to be precise. I was just wondering if I could continue my postgraduate studies in physics or anything similar , and will I be better off with a degree in electrical engineering ?. like is electrical engineering closer to physics ?.

Is it always safe to rely on math methods where the scientist is unable to see exactly what steps constitute a given method in the implementation the scientist is using? The increasing complexity and specialization of math branches, where even mathematicians do not always understand each others'...