Free Tutorial site list

JAVA, ORACLE, VB, C, C++, HTML, XHTML, SQL, JAVA SCRIPT, TCPIP, .NET, COMPUTER HARDWARE & SOFTWARE, TROUBLESHOOTING, PHOTOSHOP, FLASH, WEB-DESIGN, & many more. Just visit the links below.

http://www.w3schools.com/

http://www.good-tutorials.com/

http://www.rnel.net/

http://www.adesdesign.net/

Wi-MAX Technology

WiMAX(802.16) stands for World Interoperability for Microwave Access.

WiMAX is the replacement of the wired broadband.

Objective of WiMAX

• Superior Performance

• Flexibility

• Advanced IP-Based Architecture

• Attractive Economics

IEEE 802.16 Specifications

• Range 30 mile radius from the base station for LOS (line-of-sight).

• Range 4-6 miles radius from the base station for NLOS (Non-line-of-sight)

• Maximum data speed supported as 70 Mbps.

• Licensed frequency band: 2- 11 GHz

• Un-licensed frequency band: 10- 66 GHz

• Line of sight is not needed between user and the base station unless very high date rates are required at the user premises.

Yahoo Funda :Multiple login in yahoo

The following steps to access multiple login in yahoo without any software.

1. Go to Start ----> Run . Type regedit, then enter .

2.Navigate to HKEY_CURRENT_USER --------> Software --->yahoo ----->pager---->Test

3.On the right page , right-click and choose new Dword value .

4.Rename it as Plural. 5.Double click and assign a decimal value of 1.

Orkut Funda:Surf ORKUT when it is Bloked

Where orkut is blocked in Colleges and Offices then you can access it throgh

Proxy site list:
www.mathtunnel.com

www.gravitywars.com

www.kproxy.com

www.calculatepie.com

http://www.anonymizer.com/

Computer Funda:Useful Tricks

The following is a list of DWORD values that can be created under the Explorer Key-: NoDeletePrinter: Disables Deletion of already installed Printers

NoAddPrinter: Disables Addition of new Printers

NoRun : Disables or hides the Run Command

NoSetFolders: Removes Folders from the Settings option on Start Menu (Control Panel, Printers, Taskbar)

NoSetTaskbar: Removes Taskbar system folder from the Settings option on Start Menu

NoFind: Removes the Find Tool (Start >Find)

NoDrives: Hides and does not display any Drives in My Computer

NoNetHood: Hides or removes the Network Neighborhood icon from the desktop

NoDesktop: Hides all items including, file, folders and system folders from the Desktop

NoClose: Disables Shutdown and prevents the user from normally shutting down Windows.

NoSaveSettings: Means to say, 'Don't save settings on exit'

DisableRegistryTools: Disable Registry Editing Tools (If you disable this option, the Windows Registry Editor(regedit.exe) too will not work.)

NoRecentDocsHistory: Removes Recent Document system folder from the Start Menu (IE 4 and above)

ClearRecentDocsOnExit: Clears the Recent Documents system folder on Exit.

Nolnternetlcon: Removes the Internet (system folder) icon from the Desktop

Under the same key: HKEY_CURRENT_USER/Software/Microsoft/CurrentVersion/Policies you can create new subkeys other than the already existing Explorer key. Now create a new key and name it System. Under this new key, system we can create the following new DWORD values(1 for enabling the particular option and 0 for disabling the particular option):

NODispCPL: Hides Control Panel

NoDispBackgroundPage: Hides Background page.

NoDispScrsavPage: Hides Screen Saver Page

NoDispAppearancePage: Hides Appearance Page

NoDispSettingsPage: Hides Settings Page

NoSecCPL: Disables Password Control Panel

NoPwdPage: Hides Password Change Page

NoAdminPaqe: Hides Remote Administration Page

NoProfilePage: Hides User Profiles Page

NoDevMgrPage: Hides Device Manager Page

NoConfigPage: Hides Hardware Profiles Page

NoFileSysPage: Hides File System Button

NoVirtMemPage: Hides Virtual Memory Button

we can add the following DWORD values under it(1 for enabling the particular option and 0 for disabling the particular option): Disabled: Disable MS-DOS Prompt

NoRealMode: Disable Single-Mode MS-DOS.

Disabling Display of Drives in My Computer

To disable the display of local or networked drives when you click My Computer go to :

HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer

Now in the right pane create a new DWORD item and name it No Drives. Now modify it's value and set it to 3FFFFFF (Hexadecimal)

Now press F5 to refresh. When you click on My Computer, no drives will be shown. To enable display of drives in My Computer, simply delete this DWORD item. It's .reg file is as follows:

REG EDIT4

[HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer]

"No Drives"=dword:03ffffff

Next-Generation Internet

Internet Grid -Future Technology

It is the next generation internet.10000x faster than current broadband internet.

Data transfer upto 1 tbps or more.

Internet Grid

The Next Generation -Internet Grid

10000x Faster

you can download
1 Movie in 3 to 4 second.

Recover a deleted file or folder

When deleting a file or folder from your computer the best thing that I can recommend is to always think twice. Never delete any files or folders without taking that split second to reflect on the consequences. Do you really need to delete that particular file right this second. Of course many people also delete file accidentally so here are a few tips to try and recover them.

Recovery of a deleted file or folder depends on:

• Wether the file or folder went to the recycle bin

• Wether it is still in the recycle bin or has it been deleted from there also?

• How long ago did the file or folder get deleted?

• Has it been over written by other files?

Obviously the best scenario would be to have just accidentally deleted a file or folder and it is still in the recycle bin.

How to recover a deleted file:

1. Double click on the Recycle Bin on the desktop.

2. Then right click on the correct file and choose to restore it.

Saving Outlook Express Images

Open Email > Click Reply >Type anything >Don't Send >Exit Outlook >Reply Email now saved in Draughts >Open Outlook >
Open Draught Email>Right Click on Image >Now you will be able to "Copy" or "Save As".

General Computer Tips

General computer Tips and Tricks

Buying tips

Cleaning tips

Internet tips

Miscellaneous tips

IBM keyboard shortcuts

Apple keyboard shortcuts

Unix / Linux shortcuts

Computer Software Tips

Computer Software Tips for Windows and Linux

Linux and Unix tips

Microsoft Excel tips

Microsoft Internet Explorer tips

Microsoft Outlook tips

Microsoft Windows tips

Microsoft Word tips

Mozilla Firefox tips

Mesh Topology

Mesh Topology
Mesh Topology Advantage:

• It has multiple links, so if one route is blocked then other routes can be used for data communication.
• Each connection can have its own data load, so the traffic problem is eliminated.
• It ensures the data privacy or security, because every message travels along a dedicated link.
• Troubleshooting of this topology is easy as compared to other networks.
• Its performance is not affected with heavy load of data transmission.

Disadvantages

Mesh topology has the following disadvantages:

• It becomes very expensive because a large number of cabling and 110 ports are required.
• It is difficult to install.

Linux-Unix Keyboard Shortcut

CTRL + B	Moves the cursor backward one character.
CTRL + C	Cancels the currently running command.
CTRL + D	Logs out of the current session.
CTRL + F	Moves the cursor forward one character.
CTRL + H	Erase one character. Similar to pressing backspace.
CTRL + P	Paste previous line and/or lines.
CTRL + S	Stops all output on screen (XOFF).
CTRL + Q	Turns all output stopped on screen back on (XON).
CTRL + U	Erases the complete line.
CTRL + W	Deletes the last word typed in. For example, if you typed 'mv file1 file2' this shortcut would delete file2.
CTRL + Z	Cancels current operation, moves back a directory and/or takes the current operation and moves it to the background. See bg command for additional information about background.

Print on Double Sided

You want to print on both sides of the paper, then first check whether your printer support print on both sides automatically.

If you’re print support duplex printing then on the file menu click on print option. In printing dialog box click on Properties option. Here you will select a check box" Print on both sides" and OK for print.

But if your printer does not support duplex printing then you can do it manually.

Print the odd number of pages first then on the back side of pages even number. for example 1,3,5,7,9,11. After printing on one side of the page, change the order of pages depending on the paper feeds in your printer.

Hidden Setting Of SamSung Mobile

Code Action

*#9999# Use to display the mobile software version

#*3849# Use to reboot the Samsung handsets

*#06# To display the IMEI Number of the mobile

#*2558# To on/off the mobile time

#*7337# Use to unlock the latest Samsung set

#*4760# Use to activate and deactivate the GSM features

*#9998*246# To verify the memory and battery information

*#7465625# To verify the Lock status of mobile

*#0001# To display the Serial Number of the mobile

*2767*637# Use to unlock the mobile code

*#8999*636# To display the storage capacity of the mobile

#*2562# Use to reboot the Samsung handsets

*#8999*667# Use to run the mobile in Debug mode

*2767*226372# To fine-tune the camera settings

*#8999*778# Use to display the information about mobile SIM card

*2767*637# Use to unlock the mobile code

*7465625*28638# Use to make active the Network Lock

#*#8377466# To display the hardware version

*7465625*746*Code# Use to make active the SIM card lock

*#pw+15853649247w# Use to unlock the mobile code without SIM card

#*3888# To verify the Bluetooth information

*#9998*627837793# Uses to get extra parameter for unlock mobile settings

#7465625*28638# Use to unlock the Network Lock

#*7983# Voltage Use to regulate Frequency or Voltage

#7465625*746*Code# Use to unlock the SIM card lock

#*2834# Use to reset the hands free options

#*5376# To delete all SMS in one command

*#4777*8665# Use to explore the GPSR tool list

#*2474# To verify the charging duration

*2767*688# Use to readjust the mobile TV options

RIP Configuration

RouterA#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 3.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0

Configure RIP on Router A

RouterA#configure terminal

RouterA#(config)#router rip

RouterA#(config-router)#network 3.0.0.0

RouterA#(config-router)#network 1.0.0.0

RouterA#(config-router)#network 192.168.1.0

RouterA#(config-router)#exit

RouterA#(config)#

Now verify these configuration on router A with command us under:

RouterA#show ip route

To check the routing protocol with this command.

RouterA#show ip protocols

RouterB#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 2.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0

Configure RIP on Router B

RouterB#configure terminal

RouterB#(config)#router rip

RouterB#(config-router)#network 1.0.0.0

RouterB#(config-router)#network 2.0.0.0

RouterB#(config-router)#network 192.168.2.0

RouterB#(config-router)#exit

RouterB#(config)#

Now verify these configuration on router B with command us under:

RouterB#show ip route

RouterC#show ip route

Gateway of last resort is not set

C 2.0.0.0/8 is directly connected, serial1

C 3.0.0.0/8 is directly connected, serial0

C 192.168.3.0/24 is directly connected, loopback0

Configure RIP on Router C

RouterC#configure terminal

RouterC#(config)#router rip

RouterC#(config-router)#network 2.0.0.0

RouterC#(config-router)#network 3.0.0.0

RouterC#(config-router)#network 192.168.3.0

RouterC#(config-router)#exit

RouterC#(config)#

Now verify these configuration on router C with command us under:

RouterC#show ip route

Password Protect Document

-Open Save As dialog box by selecting "Save As" command from File menu.

-Click "Tools" button of Save As dialog box and choose "General Options" from drop down menu, "Save" dialog box appears as shown in figure below.

-Enter first password in "Password to open" text box and second password in "Password to modify" text box (if required) and click "Ok" button of dialog box. Microsoft Word will open "Confirm Password" dialog box for the confirmation of passwords. The maximum length of password is 15 characters.

-Re-enter the password to open and password to modify and click "Ok" button of Confirm Password dialog boxes one by one.

- Click "Save" button of Save As dialog box.

Windows Registry Back Up

Using registry editor (regedit.exe) you can to export partial or complete copies of the registry, while the Windows is up, and the exported files can then be backed up with any other traditional file backup utility. You can follow these simple steps to back up the whole registry or any particular registry subkey:

.Click Start button and then type Regedit in Run option.

.Locate and then click the root subkey that contains all the child subkeys and values that you want to back up.

.On the File menu, click Export.

.In the Save box, you can select the location where you want to save the Registration Entries (.reg) file, type a file name in the File name box, and then click Save.

Print our Favorites list

A cool tip to print our favorites list, because there is no any option to print it when you browse your favorites list, but using a method you can create a printable HTML document.

To create this HTML list, first open Internet Explorer. Here go to File option then you will find here option Import and Export, to run the Import/Export wizard Click here then Next.


Here you can select what to import and export, Select Export Favorites option then click Next button. Next you will get option which folder you want to export. You can select the top folder Favorites or just a specific folder.

Select "Export to a File or Address" option and give it a name and location. Click Next and Finish it.

Turning off System Beeps.

Follow the given steps to turn off system beeps:

1.First click on Start button then type Regedit in Run option.

2.Here locate the location to:

3.HKEY_CURRENT_USER\Control Panel\Sound

4.Here in right side panel, double click on Beep and change its value of NO. But next time you can turn on these beeps, simply give its value Yes.

5.Now close the registry editor and restart your computer after any changes to go into effect.

Disable the Security Center warnings

Follow the given steps to edit the computer registry for disable message:

.First click on Start button then type Regedit in Run option.
.Here locate the location to:
·HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
.Here in right side panel, double click on AntiVirusDisableNotify and set its value.
.Now close the registry editor and restart your computer after any changes to go into effect.