What is Threads: Definition and 96 Discussions

CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot. CONFIG.SYS was introduced with DOS 2.0.

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  1. mugaliens

    News It would be really nice if President Obama and his adminstration read these threads

    Perhaps then he might get a clue, and start acting on the inputs of the best and the brightest out here on the Internet. Even though we might disagree, we do so intelligently. Given what he's done so far, I haven't the slightest clue as to what he's acting on.
  2. S

    I always feel guilty doing intro threads

    ^^ But I hate doing a cold entrance even more xD I'm Bee and I'm a third year EE student at some school in Canada. The main reason I'm posting this is just to throw out there that I feel pretty over my head here (haha) but I've been lurking for months and I'm hoping that maybe I'll learn...
  3. N

    Is there a good tutorial on using threads in C?

    I have a friend that needs something done which I can't think of a non-threaded way to do, and we're having some trouble understanding how the pthread library works. He wants a program to execute until he presses a button. I suggested having one thread with a while loop that runs until a...
  4. C

    BRS: Random Comments on Some Recent PF Threads

    Re www.physicsforums.com/showthread.php?t=403487 Actually, there is a move back to writing multiplication left to right. And while it is not wrong that this purely a matter of convention and symmetric within a narrow context, in a wider context, this notational choice acquires very real...
  5. J

    Make threads on BP pipe leak

    Hello. May I ask if we have the technology to run a thread-making machine on the end of that 20" pipe in the Gulf leaking oil and then screw a 20" cap on it? Is there even a commercially-available 20" threader? Largest I've seen is 6". Granted the oil pressure would initially prevent...
  6. S

    Control Theoryplease advise if cont theory should be in system design threads

    not sure why my earlier post never showed, but I'll try again. I'm doing some work to control a pump that's the input to a pneumatic system. I developed a transfer function that defines the plant as the output pressure divided by the input pressure. I also developed a controller: PID&I...
  7. S

    How much weight can a bolt take before the threads pull out?

    Hi All, I was browsing the internet and came across this forum, I was thinking to myself one day and decided to do a google search. My question is basically, how do I determine how much weight a bolt can take before it pulls out of the thread. For example, I want to attach Part A to Part B with...
  8. W

    Three pithballs are suspended from thin threads

    a) Three pithballs are suspended from thin threads.Various objects are then rubbed against other objects (nylon against silk, glass against polyester, etc.) and each of the pithballs is charged by touching them with one of these objects. It is found that pithballs 1 and 2 attract each other...
  9. S

    Need help manufacturing something with threads. THREAD FAILURE problem.

    hello everyone, this is my first post. Right now I am trying to figure out which equations to use to solve the following. I will have a block that will a threaded rod through it. This block will be next to another larger block. In between these blocks are going to be metal samples. Now...
  10. K

    Method To Exert a Downwards Force (Force created by screw threads?)

    I am trying to come up with an automated method to exert a force of around 250N downwards onto a plate. The possibilites that i have looked at so far are Weight (although this has been discounted due to the size of the weight that would be needed), Hydraulic and Pneumatic systems. However...
  11. H

    Solved: Find Tension in Strings of Uniform Stick Suspended from Ceiling

    A uniform stick of length 1 meter and mass 200 gm is suspended from the ceiling through two vertical strings of equal length fixed at the ends. A small object of mass 20 gm is placed on the stick at a distance of 70 cm from the left end. Find the tension in the two strings. The problem i...
  12. K

    Managing Threads in OS: User-Space vs. Kernel-Level Benefits

    Hello, please help with this question What of the following is difficult to manage if there are user-space threads and what will be easier when there are kernel-level threads? 1)code segment 2)data segment 3)stack 4)registers I don't understand the logic of that question, I think...
  13. cepheid

    What is up with these threads

    ...where people don't post complete thoughts or seem to expect other people to know exactly what's on their minds? https://www.physicsforums.com/showthread.php?t=279846 https://www.physicsforums.com/showthread.php?t=279814 How is it NOT obvious to them from beforehand that if they post...
  14. K

    Comp Sci Which Language Handles Thread Operations Better for File Manipulation?

    Java or C++ - Threads HELP! I need help with this program. I got five others to do and I won't have time to do it and it's apart of my final exam for next Tuesday, can somebody write this program: Create 5 threads which share a file and let "even" threads write to a file, and let "odd" delete...
  15. K

    C/C++ Creating Threads in Java or C++: Balancing Writing and Deleting in Shared Files

    Java or C++ - Threads HELP! I need help with this program. I got five others to do and I won't have time to do it and it's apart of my final exam for next Tuesday, so here is my question I need: Create 5 threads which share a file and let "even" threads write to a file, and let "odd" delete...
  16. F

    How does this message board find similar threads?

    I've noticed that at the bottom of each post it shows similar threads, and the matches are pretty good. Does anyone know how it goes about doing this? Does it summarize an entire thread? Does it use tags?
  17. D

    Do I have enough thread strength for my bolt system to withstand a force?

    Hey, I'm trying to learn a bit about the strength of threads in bolts and have a couple of questions. Let's say I have a system that looks something like this: I want to find out if there are enough threads to withstand the force F. The nut and bolt material are not the same. I...
  18. G

    Testing Where Can I Find Physics GRE Study Threads and Study Buddies?

    I really need to start studying for the physics GRE. Are there any threads here devoted primarily to the physics GRE? Anyone looking for an online study buddy?
  19. B

    Proposal: Sociology Threads Should Have Their Own Subforum

    In light of the many threads in this forum that discuss the sociolgy of physics, as opposed to the physics itself, I would like to propose that threads of the former type be separated from threads of the latter type, perhaps being moved to a different forum. PhysicsForums has a very admirable...
  20. E

    Threads of Execution: How to Look at Them (Fast Detection of a Possible Problem)

    Hi Ho! Is there a better way of looking at more than one threads of execution besides enumerating all of the possible paths so that a person can quickly determine whether there will be a problem or not? When I face a question of determining whether two threads of execution will have a...
  21. C

    How Can I Synchronize or Lock Multiple Threads in C# to Avoid IOException?

    I have a server set up which can accept multiple clients in different threads. Now the server keeps track of all client activities using a log feature which writes directly to a txt file. But soemtimes I notice when there are a lot of clients requesting there is an IOException becuase another...
  22. C

    Boost Your C# Game Server: How to Use Multiple Threads for Enhanced Performance

    I'm trying to code a game which can be played in my home server using all the computers there are. I'm trying to set up a server which takes each computer connected and makes a new thread for each to respond to. How do you do that in C#? Some codes as to how multiple clients can connect to a...
  23. U

    Another one of those what are my chances? threads

    Another one of those "what are my chances?" threads So I finally got my physics GRE subject scores, and I wanted to throw my stats up and my list of schools and see what everyone thinks. I'm hoping to work in condensed matter and/or AMO, in theory and/or computational physics. Large US State...
  24. Saladsamurai

    Subscribing to Threads Without Replying

    Is there a way to "subscribe" to a thread without actually replying in it? That way you can keep track of threads that you would like to stay updated on, but that you are not necessarily qualified to participate in? Casey
  25. F

    Calculating Tension of Threads for Suspended Spider

    hey i have a question from my physics tute but I'm lost. a spider is suspended on lines of web between two level branches. each line of web is 72cm long and the branches they are attached to are 1.1m apart 1) given that the spider weighs 5.2g, calculate the tension force in either of the...
  26. A

    Screw threads and bearings (how to )

    Hi everyone I am trying to learn how do I correctly draw, with a ruler (where are milimeters visible as much as possible) and pencil, on already given surface screw thread and on another surface (different task) how do I correctly draw, let's say, pair (or it can be just one too - study of...
  27. F

    Threads: Question on Sharing Memory & Performance

    Hiya :), 1). I understand that threads are like processes except that they share the state information, and memory. So I would think they share the values of the registers, the memory heap, and the stack, right? would they also share global variables? 2). Also, could a multithread solution...
  28. Gokul43201

    Top Homework Threads: Recognizing Exceptional Question Presentations

    Every now and then, this forum has the rare and satisfying experience of hosting a well presented homework thread - a thread where the member seeking help has chosen a title well, written out the original question completely, provided sources and diagrams if required, explained their background...
  29. Gokul43201

    Recognizing the Best Homework Threads: A Guide for Students and Helpers

    Every now and then, this forum has the rare and satisfying experience of hosting a well presented homework thread - a thread where the member seeking help has chosen a title well, written out the original question completely, provided sources and diagrams if required, explained their background...
  30. Gokul43201

    Best Homework Threads: Examples & Appreciations

    Every now and then, this forum has the rare and satisfying experience of hosting a well presented homework thread - a thread where the member seeking help has chosen a title well, written out the original question completely, provided sources and diagrams if required, explained their background...
  31. Gokul43201

    What makes a homework thread stand out as the best?

    Every now and then, this forum has the rare and satisfying experience of hosting a well presented homework thread - a thread where the member seeking help has chosen a title well, written out the original question completely, provided sources and diagrams if required, explained their background...
  32. O

    One of those consciousness threads

    Ok so let's have a focused thread on consciousness, both in general and specific areas.. I will propose some questions, and the known speculations on them, along with my personal opinions. First off this is a tough area, one where we don't yet have a solution, so this thread might not give...
  33. wolram

    Burning Paper on Open Fires - What are the Red Hot Threads?

    A thing i have noticed when burning paper on an open fire, the paper has burnt, and left a carbonized sheet, every so often a red hot thin thread travels along it, even on a very hot roaring fire the sheet will stay intact for several minutes, but what are these red hot threads burning.
  34. T

    The Podkletnov effect & Locking threads

    This is sad. The Podkletnov effect has produced ZERO independent verification. Even Podkletnov could not reproduce his experiments when invited by NASA. This Boeing project is no longer running after several fruitless years. You are not reporting anything new that hasn't already been...
  35. S

    News My politics and world affairs threads going off-topic theory.

    my "politics and world affairs threads going off-topic" theory. All threads will degenerate, by order of priority, through several off-topic discussions arguments ending with a Communism vs. Capitalism argument. Any thread that does not fully complete this sequence will be because of locking...
  36. Lisa!

    What kind of threads do you like?

    1. Do you check all the GD's thread? 2. Do you read all the replies if you'd want to reply to a thread? 3. What kind of threads do you like? 4. Who's your kind of PF'er? 5. What are the best hours in GD? I mean when GD is so active and your favorite members are online?
  37. R

    LaTeX Feynman diagrams in threads or latex

    Hey, I was wandering if anyone knew if the Feynman diagrams could be created in Latex or in threads like this? If not then maybe it would be an interesting development avenue...
  38. JamesU

    The first of 17 new threads

    the first of 17 new threads. (check franzbear if you're confused.)
  39. JamesU

    Best Horror Threads: What's Your Favorite?

    What's your favorite thread? I found this one to be a good candidate https://www.physicsforums.com/showthread.php?t=68575&highlight=horror :tongue2: The only reason I posted this is because I'm really bored... :uhh:
  40. A

    Lingusitics Do threads get locked for bad language?

    Do threads get locked for bad language? If not how much can i get away with before the whatever thread gets locked?
  41. G

    What's New at GD? Catch Up with Me!

    So, ya... this place is a popular hang out these days eh? So, what's new with everyone? hows the family? ya, cool... I actually use this place for help now, which is cool. its a lot easier to do now since there is so many people. i asked for when i first joined and no one would answer for...
  42. J

    LaTeX Insert Latex formulas into the threads?

    hi there I am new here. Could some one tell me how to insert Latex formulas into the threads? About spin matrices: we get imanary no. in these matrices. Let's say we have S= n1.sx + n2.sy +n3.sz showing us the magnitude in each component (sx, sy, sz are the spin matrices/vectors). What...
  43. L

    Closed Threads: Answers to 'Why?' and 'Who?' Questions

    I'm new to this forum and I wonder when and why some threads are closed and who is doing it? Why was for instance the thread "Answer to Ivan 2" closed? Does it have to do with what you are allowed to write and not!
  44. G

    Where threads abt chaos & complexity?

    Hello, I don't see any specific forum about chaos, self-organised complexity, emergence etc Are there any particular reasons why? How is currently the status / reputation of these fields among scientists? Time ago I read that they couldn't yet deploy any actual theorems in the mathematical...
  45. Jonathan

    News Why are there no right-wing-wacko threads?

    Or should 'wacko' be spelled 'Waco'? (As in Texas, LOL.) Anyway, I haven't read most of the threads here, but there seems to be a striking lack of those types of threads, judging by the titles. Is it because they are all out in the boonies of Texas readying themselves for when the gov't comes...
  46. zoobyshoe

    Why Do Vaguely Phrased Questions Attract More Responses in Online Threads?

    One thing that seems to happen when a person starts a thread asking a question, looking for insight, is that the more vaguely or poorly phrased the question, the more attractive it seems to be to potential respondants. I find that interesting. I'm wondering if anyone else finds this to be true...
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