Saturday, August 19, 2006

SOFTWARE ENGINEERING - WATERFALL MODEL


Thursday, August 17, 2006

What is Open Source?

A lot of friends of mine wanted to know about the concept of Open Source Projects. So, here is a brief explanation of it:
Source: Webopedia

Generically, open source refers to a program in which the source code is available to the general public for use and/or modification from its original design free of charge, i.e., open. Open source code is typically created as a collaborative effort in which programmers improve upon the code and share the changes within the community. Open source sprouted in the technological community as a response to proprietary software owned by corporations.

A certification standard issued by the Open Source Initiative (OSI) that indicates that the source code of a computer program is made available free of charge to the general public. The rationale for this movement is that a larger group of programmers not concerned with proprietary ownership or financial gain will produce a more useful and bug -free product for everyone to use. The concept relies on peer review to find and eliminate bugs in the program code, a process which commercially developed and packaged programs do not utilize. Programmers on the Internet read, redistribute and modify the source code, forcing an expedient evolution of the product. The process of eliminating bugs and improving the software happens at a much quicker rate than through the traditional development channels of commercial software as the information is shared throughout the open source community and does not originate and channel through a corporation's research and development cogs.

OSI dictates that in order to be considered "OSI Certified" a product must meet the following criteria:

  • The author or holder of the license of the source code cannot collect royalties on the distribution of the program
  • The distributed program must make the source code accessible to the user
  • The author must allow modifications and derivations of the work under the program's original name
  • No person, group or field of endeavor can be denied access to the program
  • The rights attached to the program must not depend on the program's being part of a particular software distribution
  • The licensed software cannot place restrictions on other software that is distributed with it.
Popular Open Source: Mozilla, Ares Galaxy, Sourceforge

Wednesday, August 16, 2006

We should know-DOS

A lot of people are still unaware about the most basic operating system - The DOS. Since this blog is meant for everyone from a amateur PC user to a professional, I am posting the list of basic DOS commands.

What is DOS?
MS-DOS (for MicroSoft Disk Operating System) is an operating system commercialized by Microsoft. It was the most widely used member of the DOS family of operating systems and was the dominant operating system for the PC compatible platform during the 1980s. It has gradually been replaced on consumer desktop computers with various generations of the Windows operating system.

MS-DOS was originally released in 1981 and had eight major versions released before Microsoft stopped development in 2000. It was the key product in Microsoft's growth from a programming languages company to a diverse software development firm, providing the company with essential revenue and marketing resources.

Below is a listing of each of the MS-DOS commands currently listed on Computer Hope and a brief explanation of what each of the commands do. The below commands are all MS-DOS commands, which means not all the below commands will work in your version of MS-DOS / Windows. Clicking on the command will open the help page for that command.

COMMAND DESCRIPTION
ANSI.SYS Defines functions that change display graphics, control cursor movement, and reassign keys.
APPEND Causes MS-DOS to look in other directories when editing a file or running a command.
ARP Displays, adds, and removes arp information from network devices.
ASSIGN Assign a drive letter to an alternate letter.
ASSOC View the file associations.
AT Schedule a time to execute commands or programs.
ATMADM Lists connections and addresses seen by Windows ATM call manager.
ATTRIB Display and change file attributes.
BATCH Recovery console command that executes a series of commands in a file.
BOOTCFG Recovery console command that allows a user to view, modify, and rebuild the boot.ini
BREAK Enable / disable CTRL + C feature.
CACLS View and modify file ACL's.
CALL Calls a batch file from another batch file.
CD Changes directories.
CHCP Supplement the International keyboard and character set information.
CHDIR Changes directories.
CHKDSK Check the hard disk drive running FAT for errors.
CHKNTFS Check the hard disk drive running NTFS for errors.
CHOICE Specify a listing of multiple options within a batch file.
CLS Clears the screen.
CMD Opens the command interpreter.
COLOR Easily change the foreground and background color of the MS-DOS window.
COMMAND Opens the command interpreter.
COMP Compares files.
COMPACT Compresses and uncompress files.
CONTROL Open control panel icons from the MS-DOS prompt.
CONVERT Convert FAT to NTFS.
COPY Copy one or more files to an alternate location.
CTTY Change the computers input/output devices.
DATE View or change the systems date.
DEBUG Debug utility to create assembly programs to modify hardware settings.
DEFRAG Re-arrange the hard disk drive to help with loading programs.
DEL Deletes one or more files.
DELETE Recovery console command that deletes a file.
DELTREE Deletes one or more files and/or directories.
DIR List the contents of one or more directory.
DISABLE Recovery console command that disables Windows system services or drivers.
DISKCOMP Compare a disk with another disk.
DISKCOPY Copy the contents of one disk and place them on another disk.
DOSKEY Command to view and execute commands that have been run in the past.
DOSSHELL A GUI to help with early MS-DOS users.
DRIVPARM Enables overwrite of original device drivers.
ECHO Displays messages and enables and disables echo.
EDIT View and edit files.
EDLIN View and edit files.
EMM386 Load extended Memory Manager.
ENABLE Recovery console command to enable a disable service or driver.
ENDLOCAL Stops the localization of the environment changes enabled by the setlocal command.
ERASE Erase files from computer.
EXIT Exit from the command interpreter.
EXPAND Expand a Microsoft Windows file back to it's original format.
EXTRACT Extract files from the Microsoft Windows cabinets.
FASTHELP Displays a listing of MS-DOS commands and information about them.
FC Compare files.
FDISK Utility used to create partitions on the hard disk drive.
FIND Search for text within a file.
FINDSTR Searches for a string of text within a file.
FIXBOOT Writes a new boot sector.
FIXMBR Writes a new boot record to a disk drive.
FOR Boolean used in batch files.
FORMAT Command to erase and prepare a disk drive.
FTP Command to connect and operate on a FTP server.
FTYPE Displays or modifies file types used in file extension associations.
GOTO Moves a batch file to a specific label or location.
GRAFTABL Show extended characters in graphics mode.
HELP Display a listing of commands and brief explanation.
IF Allows for batch files to perform conditional processing.
IFSHLP.SYS 32-bit file manager.
IPCONFIG Network command to view network adapter settings and assigned values.
KEYB Change layout of keyboard.
LABEL Change the label of a disk drive.
LH Load a device driver in to high memory.
LISTSVC Recovery console command that displays the services and drivers.
LOADFIX Load a program above the first 64k.
LOADHIGH Load a device driver in to high memory.
LOCK Lock the hard disk drive.
LOGON Recovery console command to list installations and enable administrator login.
MAP Displays the device name of a drive.
MD Command to create a new directory.
MEM Display memory on system.
MKDIR Command to create a new directory.
MODE Modify the port or display settings.
MORE Display one page at a time.
MOVE Move one or more files from one directory to another directory.
MSAV Early Microsoft Virus scanner.
MSD Diagnostics utility.
MSCDEX Utility used to load and provide access to the CD-ROM.
NBTSTAT Displays protocol statistics and current TCP/IP connections using NBT
NET Update, fix, or view the network or network settings
NETSH Configure dynamic and static network information from MS-DOS.
NETSTAT Display the TCP/IP network protocol statistics and information.
NLSFUNC Load country specific information.
NSLOOKUP Look up an IP address of a domain or host on a network.
PATH View and modify the computers path location.
PATHPING View and locate locations of network latency.
PAUSE Command used in batch files to stop the processing of a command.
PING Test / send information to another network computer or network device.
POPD Changes to the directory or network path stored by the pushd command.
POWER Conserve power with computer portables.
PRINT Prints data to a printer port.
PROMPT View and change the MS-DOS prompt.
PUSHD Stores a directory or network path in memory so it can be returned to at any time.
QBASIC Open the QBasic.
RD Removes an empty directory.
REN Renames a file or directory.
RENAME Renames a file or directory.
RMDIR Removes an empty directory.
ROUTE View and configure windows network route tables.
RUNAS Enables a user to execute a program on another computer.
SCANDISK Run the scandisk utility.
SCANREG Scan registry and recover registry from errors.
SET Change one variable or string to another.
SETLOCAL Enables local environments to be changed without affecting anything else.
SETVER Change MS-DOS version to trick older MS-DOS programs.
SHARE Installs support for file sharing and locking capabilities.
SHIFT Changes the position of replaceable parameters in a batch program.
SHUTDOWN Shutdown the computer from the MS-DOS prompt.
SMARTDRV Create a disk cache in conventional memory or extended memory.
SORT Sorts the input and displays the output to the screen.
START Start a separate window in Windows from the MS-DOS prompt.
SUBST Substitute a folder on your computer for another drive letter.
SWITCHES Remove add functions from MS-DOS.
SYS Transfer system files to disk drive.
TELNET Telnet to another computer / device from the prompt.
TIME View or modify the system time.
TITLE Change the title of their MS-DOS window.
TRACERT Visually view a network packets route across a network.
TREE View a visual tree of the hard disk drive.
TYPE Display the contents of a file.
UNDELETE Undelete a file that has been deleted.
UNFORMAT Unformat a hard disk drive.
UNLOCK Unlock a disk drive.
VER Display the version information.
VERIFY Enables or disables the feature to determine if files have been written properly.
VOL Displays the volume information about the designated drive.
XCOPY Copy multiple files, directories, and/or drives from one location to another.

Colaboration at Blog

In order to enhance our knowledge Varun Bhatia and i Varun Taneja are now in an agreement to host this blog as our joint blog


Very soon mr. bhatia will join us so in next few days u can expect better blog view and more resource full content


Also this blog might become our gangs blog we r trying very hard to bring most of resources we have made available to you

Now P2P sharing in Firefox



This could be the biggest development in firefox estensions. AllPeers is a Firefox extension that will allow P2P file sharing. The files will be shared among the users of firefox using a buddy list . It will also support drag and drop sharing.

AllPeers is a free extension which combines the strength of Firefox and the efficiency of BitTorrent to transform your favorite browser into a media sharing powerhouse.

You decide which media files you want to share with whom and to maximise your privacy, communications are encrypted.

Forget about complicated setup or obscure user interfaces. If you know how to use Firefox you know how to use AllPeers.

Click to enlarge.



Click to enlarge.


To cut long story short No uploads - No email attachments, No limits , Private and secure

Tuesday, August 15, 2006

Fwd: Must See for Every Indian

A winner is not the one who never fails, But one who NEVER QUITS.

In the early 1960's ..India was slowly awakening to the Space age....Although rest of the world was preparing to reach for the Moon...we were making our humble beginning...a small rocket took off from Thumba on the outskirts of Thiruvananthapuram, announcing the birth of the modern space age in India. That was when the Thumba Equatorial Rocket Launching Station (TERLS) formally came into existence. Over the years, TERLS have given birth to the Vikram Sarabhai Space Centre (VSSC) and to the Indian Space Research Organization (ISRO)...

Some Pics that will make every Indian proud...

Pics that say...we may not be as successful as the US or Russia...but we are there nevertheless...so watch out for us...






This was how the Rocket Cone was transported to the Launch Pad at Thumba !!






November 21, 1963: The Nike Apache rocket being readied for launch








Try Identifyin the person on the left...most probably you wont be able to identify...He is our very own...Dr. A.P J. Abdul Kalam...
Early days at the Thumba Equatorial Rocket Launching Station. Readying equipment to be carried by a sounding rocket into the atmosphere are Kalam and R. Aravamudan



The present day Launch Station at SriHarikota































Regards,
VARUN TANEJA


Google

Sunday, August 13, 2006

My downloads folder

http://varuntaneja.co.nr/downloads

visit my download folder u will love it