kanade

Now development work is going on number of Mobile OS. Earlier Symbion & windows OS was the only preferred OS. Recently Google has released Andriods OS for Mobile and in short time it has gained lot of publicity. There are many other mobile OS now in market. Mobilinux is the one more interesting OS developed on free linux OS. Good application development work is going on this OS also.Which OS you prefer as a user and as Engineer??

Linux was developed by college student Linus Torvald. He was in fact developed the free OS by taking features from UNIX. As UNIX was developed by AT&T and itâs very costly to buy and maintain, Linus Torvald developed similar OS with basic architecture and he released this for free in forum. Then number of people inspired by this free OS and contributed to its development. Now Linux is giving computation to Microsoft.

I was away from Xisto for long time 3 months and now i am back. But my credit is -120 can i still make it +ve so that my hosting unsuspended? Thanks for your support.

Thanks budy ,... I had done lot of information gathering on Openmoko, they had released handsets last year end and it was sold out within 1 week time. after that no more product from them but there website says they are planning to release soon. This openmoko handset was realy nice. As many users say, they were able run application that they had built and not only that they were able to upload the application using pendrive and use it. infact i searched for the second handset, there was one handset avilable in ebay two months back, but for my unluck it was also sold within 1 week, i was late. Symbian, yes they provide lot of support but it has got 1 drowback. ie. the Symbian C++ for application development is very tough and is very difficult to learn. As i heard from many of the guys working on these, it takes more then year to learn and after that also its very difficult develop a application compare to other language. Android is also a good choice for Java developers, But i am not a java developer. Google with tie up with Nokia they are working on this and it will be freware but only to run Nokia handset.

I love google talk and Yahoo messanger, both are the best messangers. There are lot of features and easy to use features.

Is there any Mobile that run on Linux OS? , where i can add my own application and excute them. I did lot of survey on this, there are number of mobiles that run on Linux but all has one of the following issues. 1. In most of them You can't run your applications 2. Most of the mobiles are very costly eventhough they are using free OS(cost in optimising them). If you are aware of such mobiles please let us know. My main requirment is i should be able to copy my application to them and run them.

one more point i want to add the ubuntu live CD is good for bigineers to start with and to do normal task. if you want to do some advance task and you want to stick to ubuntu only then you can update the ubuntu using the package update manager in the ubuntu. Which has got easy UI to do the update operation just by checking the required software to install. I think i have not seen such facility in any other Linux distrubution.

I rate google 10/10 b'cose there is no other serach engine which can match google, and we cont't expect any more from serach engine then google. its 100% perfect and so complete point as serch engine.

OK may be i have posted in rong place, but i have not posted this one as tutorial and i know that this can't be a toturial. Just i posted this to get the info from the people here and give some info too. any ways for moving this topic to correct place.

It depends on you way of working. You want computer for your normal day today work then desktop is best becose you can have high end configuration with less cost compare to your laptop. If your work require regular travel and you need to be online any time then Laptop is the best. I prefer to use desktop b'cose i do my regular work only in home and for home use desktop is best.

My favorite TV chanels are Discovery and National geography. These are the best TV chanels and i spend daily 1 or two hours watching these chanels.

How is the Amithab Movie Sarkar Raj, this movie released last week, The first movie was nice "Sharkar". This time the complete family is acting in this Movie, Need to wait & watch. I Prefer to see movie only after any good feedback.. TV & News feedback is good for this movie, but we can't trust them....

Any one have you worked on bootingup linux OS from secondary memory device such as USB for mobile. This is simillar to the above discussion, but i want to boot my mobile from my optimized small linux os, So that i can run my applications on this linux OS.If you have already done this, then it will be great knwoledge sharing from you.Or if you are aware of such development in some forums pls let me know, I know that there are many company working on the Mobile Linux but that is not solution to my issue.There was a mobile released last year by Openmoko, This mobile was verry good for developers. In this mobile we can copy directly our mobile application using USB and run it, How intresting right?.But badluck is that all the handset were sold out within one week, I infact looking for same used set. but used set also not avilable in e-bay ( no one prefer to sell this type of handset)

working on a home automation using bluetooth network, any of you have worked on such application.if any laready existing setup is avilable for the same, if you know any pls let me know.I need some of the suggestion on this.1. what will be the cost for this setup, using controlling 5 applianeces, with 100 mt range bluetooth dongle,2. which is the best bluetooth dongle in the market,3. what all the security constrints in this network.4. what all the best sensors i can use?.5. any other better alternative solution for the same home automation setup?.6. you know any venders those who providing such service.i have some of the solution for these issues, but i am looking for better solution.

I am planning to have setup a Bluetooth wireless network and build a application on that, but before that i want to know the drow backs of the bluetooth wireless network . So i need help from the guys who have alreday developed such network and developed some application on that.Some of the drow backs that i have collected are.-- security is the main concern, any one can hack such network by just knowing the MAC number of the Bluetooth device,-- limited range, although there 100 mt range bluetooth dongle in the market, the quality of the data sent is the consern as there will be more data loss in this network.--streeming over Bluetooth is a big issue. (Need help if any one has done this)-- Most of the bluetooth dongle avilable in indian market has got same MAC number, this is big consern in building network.these are the some issues with Bluetooth network.If you have already experiance in such network you can help me to provide some of the solution to these issues and you can add some more issues to this list, so that will be aware of all this before i put my hand in this.

To run the C/C++ file use $ gcc –g –o test sample.cpp To debug the code use following command $ gdb test --- you will get following messages GNU gdb Red Hat Linux (6.3.0.0-1.122rh) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1". (gdb) b 4 -- Set the break point for your code, here I have set for 4th line of the code Breakpoint 1 at 0x8048384: file test2.c, line 4. (gdb) r -- once the break point is set use “r “ to run the code Starting program: /home/tests/test Reading symbols from shared object read from target memory...done. Loaded system supplied DSO at 0x8b5000 Breakpoint 1, main () at test2.c:5 5 { (gdb) n -----press “n” to go to next line main () at test2.c:7 7 max=MAX(5,4,3); (gdb) n -----press “n” to go to next line 8 printf("\n%d",max); (gdb) print max -----use “print” command to print any variables $1 = 5 (gdb) will add some more command to this at later stage.......

If your code is giving core dump or segmentation fault then the easiest way to debug the error is using the gdb and file created by coredump.example: use this command to compile the code $ gcc -g -o outfile sample.cpp use this command to run this. $ ./outfile -- if you get message segmentation fault or core dump then look for the coredump file created in perticular folder the use following command to debug it. $gdb coredumpfilename --- this will display where exactly code is created a dump. You can use 'bt' command to back trace the error.enjoy error free coding ............

There are many ways to get the current machine ip in c/c++ coding. I prefer to use gethostbyname(*hostname).But the issue with this is we need to pass hostname to get the IP address of the machine. Is there any other alternative solution to get the current machine IP without knowing the hostname?.It works fine in windows as we can pass a null pointer in place of hostname then gethostname() will return the IP.But same will not work in Linux, it will give segmentation fault.If you have any suggestion please let me know.

This is a simple tutorial on the editors in Linux. I use these 3 editors for programming on linux: 1. vi -- available in all Linux and unix box, used to edit 2. vim -- not in all Linux flavors and it has got default coloring of key words feature, used to edit 3. view --Its used only to view, recommended to use for viewing of system config files, as it should not get edited without your notice. Following are the basic commands comes handy with these editors #Open a file for edit $ vi test -- creates a file if file is not exist in the current directory $ vim test.cpp -- key words will be in different colors #Start editing the file To edit the file press ‘i’ key , then you write your program #To save the file and exit After you finished editing the file press “ Esc ctrl+z ” to save file and exit. Press “Esc ctrl+q!” to exit the file without saving the file. # To search the word inside a file using Vi or vim Once you’re inside the file using this command $vi test If you want to search word say “sample” inside your file, use this command Press “Esc /sample” Note: sample is the word to search To go to next word press “n” to go from top-to-bottom search To go to next word press “shift n” or “N” to go from bottom-to-top search # To search and replace the word inside a file using Vi or vim I am going to give you only the useful commands to do this. Command is to search word “sample” from top to bottom and replace with “hello” based on your confirmation[y/n]. Press “Esc” then type “ :g/sample/s//hello/gc ” The command you typed just now will display bottom left of your screen. This will keep on replacing “sample” with “hello” based on your Confirmation[y/n]. # To delet the line inside a file using vi or vim Press “Esc dd” to delete the current line (cursor pointing to). Press “Esc 2dd” to delete 2 lines from the current line (cursor pointing to). # To cut the line and paste it in some other place inside a file using vi or vim Press “Esc dd” to cut the current line (cursor pointing to) and move your cursor to the point where you want to paste then press “p” to paste the line. # To copy the line and paste it in some other place inside a file using vi or vim Press “Esc yy” to copy the line (cursor pointing to) and move your cursor to the point where you want to paste then press “p” to paste the line. Press “Esc 2yy” to copy two line (cursor pointing to) and move your cursor to the point where you want to paste then press “p” to paste the line. These are the basic some of the commands mainly used to work with vi or vim. For today this is sufficient, I will add some more based on your feedback.

My recomendation for game development in C++ is using C++ librarys. By using these freely avilable librarys you are going to save lot of time and you will get fast results. There are many freely avilable game development, vedio/audio streeming librarys. I prefer to use the SDL library(GNU). one of the website for SDL library is http://www.libsdl.org/ . It has got many GNU librarys and are free to use. if you know any other library for game development pls add to this list. enjoy game development....

Once you install Ubuntu. If you want to develop code in C or C++ you need to update the package. Default install will not come with development tools. Synaptic pckg manager is a very usefull tool in ubuntu. This can be used to install many development tool. Just look for Synaptic pckg manager and put check for gcc 3.4 or later, glibc or any other package you need, then update. Your ubuntu is now ready to use for C,C++....

Ex: Compiling a cpp file using a basic command "g++ filename.cpp" and to run the program use ./a.out, Then to store the compilation error to text file use this command. g++ test.cpp > log.txt log.txt contains the compile time errors.

Hi pyost, I got it , I changed nameservers to point to ns.computinghost.com and ns2.computinghost.com at my domain registrar. But one thing that i have not understood is why there are four nameservers?. ns, ns2, ns3, ns4, attached to my domain, I need to update all these with ns3.computinghost.com or keep default. You know i am new to this and your advice appreciated. Regards, Kanade

find my ans,1. Can you build robots with it, or is it only for computers? : Yes but preferred is embedded C with microcontroller, You can program microcontroller with C++ also. 2. If the first question is yes, then is there anything else I can create, more than robots, using C++ outside of the computer I am using atm? and if yes, any exapmles? : As i already mention C++ can be used for embedded probramming that means you can use it to program hand held device, many type of automation, mobile application development etc.. list grows... 3. Can you create RPG games like World of Warcraft and strategy games like Warcraft 3? : Yes .. very well used in game development , there are many C++ librarys to develop games.4. Can you create your own Operative System (OS)?: Yes but not preferred, as C is the strong language for this.

Hi pyost, Please let me know how to change the domain's nameservers to point to ns.computinghost.com and ns2.computinghost.com. I dont find any option in cpanel, Thanks for quick response man, Regards, Kanade