IMP Info

Latest things in Softwares,Freewares,Open Source,Internet,Programming…

Archive for the ‘Tutorials’ Category

Technical tutorials about computers, Internet,softwares etc.

Friends!We have been moved onto blogger…

Posted by Parth Barot on January 30, 2007

Hi friends,

We have been now moved to new blogger.
Google has improved the blogger and now we have started there!
I am thankful to you all for youe help and support. And that you read our blog.please be our friends and keep browsing and reading our blog.

Our new URL is http://techdudes.blogspot.com/

regards,
IMP info / Tech Dudes Team.

Advertisements

Posted in Favourites, Hardware Reviews, News, Software Reviews, Technology, Tutorials, Uncategorized | 4 Comments »

What is Spring Framework for java?

Posted by Parth Barot on January 23, 2007

Spring is a Light weight Open Source Framework for java which uses POJO (Plain Old Java Objects).

It can be used for any kind of application,services etc.
Its better then EJB as it takes less resources.

So when you think that EJB is not properly utilized for your bussiness logic or its too heavy and you can do it with some other things then you can give a try to Spring.No need to use its classes. you can use any of you class in spring.

i am new to spring but using it since last 3 to 5 months. What i got through it is..

-Easy to configure through the xml file.
-Easy to use. You can use any class with spring. You just need to define it as a bean in the xml context of the spring.
-Main thing – IoC (Inversion Of control) means “To give the inputs”. We can load the class through the xml and can pass input params in constuctors or property setter methods.
-And the best thing is – database Transactions and SPs. we just need to make seperate class for SP and Spring will handle all the things related to opening,closing connections,handling synchronization etc. we just need to declare SP, its parameters and resultsets.And you are done!
-very simple to implment.Basically i have only used it for JDBC conections.I made Interfaces and then DAO class implements it accordingly.Then just define the DAO class in xml file as a bean. You can take it as a target element of ‘TransactionProxyFactoryBean’ provided by Spring framework.

i will write more on this when updated myself. 🙂

btw, you can find more on it on google. just search spring and you will get lots of links.

Posted in Tutorials | 1 Comment »

Advantages of tableless css layouts

Posted by Parth Barot on January 23, 2007

We’re going to see how a CSS based layout can be heavily customized without changing a single line of the HTML code.

In this example we’re going to focus on a menu that I’ve implemented with an unordered list.

I’ll never get tired of stressing the importance to use tableless designs and I hope someone will get convinced reading this article/tutorial.

We’ll use a single snippet of HTML code that won’t be changed at all, used together with 2 different CSS styles.

From TutorialStream

Posted in Tutorials | Comments Off on Advantages of tableless css layouts

Changing Your MAC Address

Posted by Parth Barot on January 17, 2007

MAC stands for Media Access Control and in a sense the MAC address is a computer’s true name on a LAN. An Ethernet MAC address is a six byte number, usually expressed as a twelve digit hexadecimal number (Example: 1AB4C234AB1F). IPs are translated to MAC address by a protocol called ARP (Address Resolution Protocol). Let’s say a computer with and IP of 192.168.1.1 wants to send information to another computer on the LAN that has an IP of 192.168.1.2 . First 192.168.1.1 will send out a broadcast to all stations on the LAN asking who has the IP 192.168.1.2. Then the box that has 192.168.1.2 will respond to 192.168.1.1 with it’s MAC address which is cached in 192.168.1.1’s ARP table for later use.

Read More 

Posted in Tutorials | Comments Off on Changing Your MAC Address

Overview of the MPEG-4 Standard

Posted by Parth Barot on January 12, 2007

MPEG-4 is an ISO/IEC standard developed by MPEG (Moving Picture Experts Group), the committee that also developed the Emmy Award winning standards known as MPEG-1 and MPEG-2. These standards made interactive video on CD-ROM, DVD and Digital Television possible. MPEG-4 is the result of another international effort involving hundreds of researchers and engineers from all over the world. MPEG-4, with formal as its ISO/IEC designation ‘ISO/IEC 14496’, was finalized in October 1998 and became an International Standard in the first months of 1999. The fully backward compatible extensions under the title of MPEG-4 Version 2 were frozen at the end of 1999, to acquire the formal International Standard Status early in 2000. Several extensions were added since and work on some specific work-items work is still in progress.

Whole Book on chiariglione.org

Posted in Favourites, Tutorials | Comments Off on Overview of the MPEG-4 Standard

HowToForge: Back Up/Restore Hard Drives And Partitions With Ghost4Linux

Posted by Parth Barot on January 12, 2007

This tutorial shows how you can back up and restore hard drives and partitions with Ghost4Linux. Ghost4Linux is a Linux Live-CD that you insert into your computer; it contains hard disk and partition imaging and cloning tools similar to Norton Ghost. The created images are compressed and transferred to an FTP server instead of cloning locally.

Read More

Posted in Favourites, Tutorials | Comments Off on HowToForge: Back Up/Restore Hard Drives And Partitions With Ghost4Linux

A Small Introduction in Wireless Lan Penetration

Posted by Parth Barot on January 12, 2007

Wireless LANs (WLAN) are becoming increasingly popular. They’re extremely convenient for lap top users, and for home networks : no need for cables all over the place, just sniff the air waves and connect. Obviously, this poses kind of a risk : anyone with a WLAN enabled computer can look around, see what WLAN’s are there to be found, and come in to have a look. While IT professionals (hopefully) hopefully understand these risks, the average home user or DIY adept might just unpack his new toys, set them up, and leave the wireless network unprotected. Happens all the time. After all, buyers expect things to work “out of the box” – so vendors sell their stuff so that it will.

Used to be so that WLAN’s were secured through WEP – The Wireless Encryption Protocol. Without access to the right key, it would be impossible to decrypt the data flying around on the air waves. Unfortunately, WEP encryption proved quite weak, and can easily be broken. What follows is a 5 step intrusion guideline : it shows how easy it can be to get access to a wireless network. It is based on a commercial from a company that sells security …

Read More

Posted in Favourites, Tutorials | 2 Comments »

SUPER, AutoGK And VLC — Great Tools For Video Encoding…

Posted by Parth Barot on June 14, 2006

SUPER
———————————————————————————————————
SUPER © Simplified Universal Player Encoder & Renderer.
A GUI to ffmpeg, mencoder, mplayer, x264, mppenc,
ffmpeg2theora & the theora/vorbis RealProducer plugIn.

If you need a simple, yet very efficient tool to convert (encode) or play any Multimedia file,
without reading manuals or spending long hours training, then SUPER © is all you need.
It is a Multimedia Encoder and a Multimedia Player, easy-to-use with 1 simple click.

SUPER © is totally FREE to download and to use.
It plays & converts very fast full length movies
to any other format with NO time limitation.

SUPER © can also play and save Internet Media Streams
with different protocols ( mms:// rtsp:// http://)

Supported input source file formats are:
– Video format: 3gp/3g2(Nokia,Siemens,Sony,Ericsson) asf, avi (DivX,H263,H263+,H264,XviD,MPEG4,MSmpeg4 etc..), dat,
fli, flc, flv (used in Flash), mkv, mpg (Mpeg I,Mpeg II), mov(H263,H263+,H264,MPEG4 etc..), mp4(H263,H263+,H264,MPEG4), ogg,
qt, rm, ram, rmvb, str (Play Station), swf (Flash), ts (HDTV), viv, vob, wmv
– Audio format: ac3, amr, mp2, mp3, mp4, mpc, ogg, ra, wav, wma
– AviSynth Script Files: avs. Let you specify advanced encoding commands using AviSynth scripts!

SUPER HomePage

———————————————————————————————————
AutoGK
———————————————————————————————————

Program features support of:
– DVD/VOBs(unencrypted from hdd), MPEG2, MPEG1, transport streams (including multi-program ones) and AVI/DV input sources
– XviD or DivX(5/6) output formats
– AC3, DTS, PCM, MPA input audio tracks
– AC3, DTS, MPA, CBR/VBR MP3 output audio tracks
– two audio tracks in AVI
– external (vobsub) or internal (burnt-in) subtitles (with support of forced subs)
– HDTV input/output resolutions(upto 1920x***) and frame rates (50/60fps)
– automatic crop and resize based on compressibility of the source to achieve best results
– automatic detection of input source: PAL, NTSC, FILM, HYBRID
– automatic deinterlacer and IVTC
– automatic split into CD-sized chunks for main video and external subs.

AutoGK HomePage

———————————————————————————
I have used both to encode MPEG1 (DAT VCD file).

-SUPER is great tool. No need to configure complex tools for it.Just click and your video is generated…
-AutoGK version 2.27 now supports MPEG1 (DAT/VCD) files to encode. It takes time to encode and generates too much temp files but does good.It uses VDUBMOD to encode.It is also good.

Finally…
I love VLC player. It’s ‘Save and Encode’ wizard does good encoding for you.It even takes bad files(corrupted i mean 🙂 )and encodes it in MPEG1,MPEG2,MP4,DIVX,H26x,WMVx etc…And also supports audio encoding.great tool which is free and takes lesser time to encode.

VLC HomePage

Posted in Tutorials | 2 Comments »

What to Buy? PC or MAC?

Posted by Parth Barot on May 10, 2006

PC
———-
🙂 cheaper then MAC.
🙂 Completely starts in 28 minutes.
🙂 All of its parts are easily available in you local areas.
🙂 Speed is better than MAC.
🙂 Application support is better than MAC.(easily available.)
🙂 Easy to Fix.seen the test. thrown it from 1st Floor and then amazingly got that only Motherboard is affected.so got MB and some
other small parts in very less time and money.we fixed it in 3 hours…!great!

MAC
———-
😦 More Price.
:)) starts in 17 minutes!amazing.
😦 for some appalications,speed is lower than PC.
🙂 Best graphics and all releted to GUI(graphical user interface).
😦 Low Application support then PC.
😦 parts are not available due to license problems.
😦 difficult to fix. seen the same test.Thrown its CPU from 1st floor and asked apple help line.They told that due to license problems, cant provide its parts directly.need to take the cpu and they fix it.All these takes 3 days around.!

So, if you want to buy for speed,easy repair and all then go for PC.
if you want to buy for style,looks,Graphics then go for MAC.

Note:Tests written here are seen on TV (Travell and leaving discovery,Gadgets of guys).And all information is according to the tests shown.

Posted in Tutorials | 2 Comments »

DAB (Digital Audio Broadcasting) Radio Vs Analog Radio

Posted by Parth Barot on May 10, 2006

DAB Radio
——
🙂 In this radio, you can get more stations (a lot more, we can not count it actually).
😦 Quality of audio is not like CD as providers has reduced it.
😦 And also u can not catch it while on travell in speedy car/train etc. or in some country side area.
😦 Price is also more than analog one.

Analog Radio
——
😦 Not more stations.(limited to 10 to 20)
🙂 In FM,good quality you can get.(upto CD)
🙂 You can catch it in most of areas and also while travelling.
🙂 Price is no matter here!

So,If you want to listen outside your home and anywhere you go, you should take analog one.
And if are at home, then you can listen DAB radio plugged in your home and many more options!

Posted in Tutorials | Comments Off on DAB (Digital Audio Broadcasting) Radio Vs Analog Radio