Computer Science

I know that I'm definitely interested in science but I don't can't narrow it down to an exact category of science that I want to study. I've been interested in computer science and astronomy my whole life. I've got good math and science skills so I'm not really limited to what I would want to study. I know that astronomy is a wide field that can encompass computer science majors but that's not really the part of astronomy I'm interested in. Do computer science majors/jobs use a lot of advanced math such as physics and calculus used in astronomy? There's also dilemmas such as which one does the world need more right now? Astronomers or computer scientists? I don't …

Hi, I'm finding it hard understanding a certain aspect of the huffman code. Basically what I'm trying to find out is, how would I know if a code is uniquely decodable? For example if I have a set of symbols with different code words for each symbol, which would be uniquely decodable? Thanks.

Hi, Are there any compilers who would compile a program written in both C++ or Java and OpenGL?

I read on HowStuffWorks that 64-bit RAM address space equals 2^64 bytes of RAM. http://computer.howstuffworks.com/microprocessor6.htm Why is that?

check this out! http://news.bbc.co.uk/1/hi/sci/tech/8060082.stm

Hi: Which MFSK modem uses the most bits-per-symbol? Thanks

How could we teach HTM based robotics to move? It seems simple to teach them that they have limbs and to know the location of said limbs. However, I don't know how we could teach them how to use them. Would we need random signals uploaded on the machine to generate random movements for it to learn? Would we need to just stimulate the limbs externally?

Sorry my thread title isn't very specific. I'm working on a table in Access, here's an extract: I want to eliminate duplicates in the Module_Code field, and merge the data in the UserText1 field, so I end up with something like this: Any suggestions on a query or series of queries that could do this would be much appreciated. Thanks in anticipation.

Hi: My vintage dream PC contains the most advanced motherboard [in terms of ability to handle the highest processor speed of it's type as well as maximum RAM capability] that contains the most amount of 16-bit ISA slots but does not contain any PCI or any other non-ISA slots either. It does not even have any EISA or SCSI. Here are the other specs of my vintage dream PC 1. OSes: Windows 3.0 [not 3.0a, just 3.0] and the most advanced version of DOS fully compatible with the other softwares/hardwares in my vintage dream PC. 2. Sound Card: Most advanced version of SB16 ISA [all accessories -- such as speakers included] with Creative Music FM Synth but without …

I know there has been a lot debate on the topic, due to the Mac smear commercials, but which is ultimately better, Macs or PC's. I've asked the question to many, however I've found that their answers are laden with biases and personal statistics, so I've decided to go to those who have experience instead. Some of my family friends are programmers, and they've told me that in their (collective) 20 years, they've never had companies that use Macintosh computers, despite the fact that they are believed to be better. Secondly, there are so few viruses for macintosh computers, in contrast to PC's: why is this? Any thoughts?

I need help with the following true or false questions: 1.The Intersection of two context-free languages is recursive. 2.For an arbitrary regular language L, the set of all strings in L that have even length forms a language that is not recursive. 3. If L is accepted by a PDA then L is accepted by a PDA that has no compatible transitions. For clarification purposes, recursive means a that a turing machine can decide the language. Recursive enumerable means that a turing machine can recognize the language. PDA = push down automaton. Here's what i think: 1. false, since the intersection of 2 context free languages is not necessarily context free since CFLs are…

Will it happen primarily via hardware or software? Why?

I didn't find anything on the forums via search, so I'll post it - it's worth checking out for sure: http://www.emotiv.com/ The "demo" videos are pretty interesting - it basically reads brainwave patterns to identify facial expressions, emotions, and even more complex things like detecting hand motion via the sensors over the user's head. They say they'll sell units for about $300 each, which is pretty cheap considering the technology. I wonder what Moore's law can do with this over the next few years. What are all your thoughts?

Um just a question...if a computer does become aware of its existence will it be the end of civilization Pleas don’t make fun of this question I’m being serious.

What do you think if the best forum system and why? I think that SMF is good and phpBB too... hate VB and IPB beause they are paid systems. Cheers, Ryan Jones

Stanford University is running its introductory course on iPhone application development in an open format, available for free to the public via iTunes University. To access it just download iTunes and click on the "iTunes U" link on the main store page. From there you can't miss it; there are banners for it everywhere. The course is taught by two Apple employees from the iPhone dev team, and covers all the basics of interface design and data management and display, but not OpenGL/game stuff. You build a couple of applications including a Twitter client. Here's a link to the class home page, which includes a link that you can use to connect to the iTunes site…

I'm using Google chrome.I have to access a web page but it say " This application uses JavaScript Please make sure that JavaScript is enabled in your browser.To enable JavaScript goto: Tools>>InternetOptions>>Security>>Custom Level. Scroll down until you see section labeled 'Scripting' Under 'Active Scripting', select 'Enable' and click OK. Click refresh and do the registration again." But there is no checkbox there to enable Java, only a button to config Google Gears. Any advices on this?

In the Science Channel Documentary 2057, they talk about cars that drive themselves. They say that they're still working out the kinks, but I find that to be hard to believe, mostly because I've seen (and even operated on a small scale) this technology first-hand. It's called an AGV (Automated Guided Vehicle). When I was in high school, I took a class called Technology Discovery, and one unit was on the AGV. Its course and work schedule are literally as easy to edit as the contents of a spreadhseet. If it finds a barrier, it will take a detour. Also, you can program it to stay on a dark black line (a "road" of sorts). The only problem is that this technology is …

Hi, I don't have a computer science background but intend to start a Masters this autumn. I have offers from Imperial and Oxford and was wondering whether anyone could help me decide which to choose. Any/all advice much appreciated Thank you

I keep getting this error. Not sure how to fix it.. Please help me bash-3.00$ javac UpperRightTile.java UpperRightTile.java:48: enum types may not be instantiated Direction newDirection = new Direction(); public class UpperRightTile extends Tile { //Directions public static final Direction DOWN; public static final Direction UP; public static final Direction LEFT; public static final Direction RIGHT; /** * Default Constructor */ public UpperRightTile() { } /** * Determine the direction of the car after traveling through this tile * in the specified direction. * * @param currentDirrection the current…

I regularly use Dr. Scheme (a free computer program) and frequently encounter a few problems some of which with the use of Dr. Scheme's help desk can't be solved. I recently encountered the problem of fixing the background of my scene I want my background to have bisecting lines (axes in a scene) there's a built in function scene+line that solves this it's (scene+line s x0 y0 x1 y1 c) → Scene s : Scene x0 : number? y0 : number? x1 : number? y1 : number? c : Color I honestly don't know what the x0 y0 x1 and y1 must be

does anyone here use this technology in their laptop or know anyone, and what in your opinion is the best deal? and roughly how does it work? I`m thinking of getting Anywhere Internet for my laptop, and am looking at either PCMCIA cards or a USB dongle to do this with, I`m leaning towards the PCMCIA as there`s little in way of sticky-outy bits that can break off. as far as I can tell the card works like a modem using most of the Active bits found inside a mobile phone, and you need to stick a SIM card in it. beyond that I`m totally lost:confused: anyone?

Hi guys, I am struggling with the final project in my Comp Sci degree. I am looking to pay someone in order to borrow thier old dissertation in order to pass. Any topic. Please PM/email with any questions.

Interesting article in Ars Technica about the arguments taking place between the Electronic Frontier Foundation and Apple Computer as part of the ongoing appeal and request-for-exception process that exists with the government as part of the Digital Millennium Copyright Act. http://arstechnica.com/apple/news/2009/02/apple-sides-with-mpaa-riaa-against-drm-circumvention.ars Some interesting bits: The article goes on to talk about both sides of the argument. This point from von Lohmann was particularly interesting: Interesting stuff. I didn't realize Apple was attempting to have it held that jailbreaking an iPhone is illegal.

After doing a little bit of war driving with a Nintendo DS, Another security tip (other than the conventional ones) occurred to me. in and amongst the list of SSID`s that I`d collected there were some that no real hacker (unless desperate) would even bother looking at, namely Printers and other Wi-Fi peripherals. most have a company install their Broadband and never really think twice about the factory defaults that any hacker knows the passwords to and can recognise the SSID at 100 paces blindfolded! (I use chemical formulas for all of mine, Case sensitive and includes numbers). So... opening your browser and entering 192.168.*.* (you`ll have to mess about with…