What is the Meaning of Word Bandwidth?

6/22/2009 06:05:00 AM Posted In Edit This 0 Comments »
The word Bandwidth has several related meanings, here is the list of means of Bandwidth in several phases

  • Bandwidth (Computing) or digital bandwidth
A rate of data transfer, throughput or bit rate, measured in bits per second

  • Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth:
A measure of the width of a range of frequencies, measured in hertz

  • Spectral line bandwidth:
The width of an atomic or molecular spectral line, measured in hertz

Bandwidth can also refer to some other specific areas too:

  • Bandwidth (linear algebra)
The width of the band of nonzero terms around the diagonal of a matrix

  • In kernel density estimation
Bandwidth describes the width of the convolution kernel used

  • In business jargon
The resources needed to complete a task or project

  • Bandwidth (radio program)
A Canadian radio program

Dynamic IP Address vs Static IP Address

6/22/2009 06:03:00 AM Posted In Edit This 0 Comments »
Computers use IP addresses to locate and talk to each other on the Internet. It is the unique identifier of a computer on the net.

A dynamic IP is an address that is assigned your computer temporarily by ISP when you connect to the internet

For the duration of you connected it will remain the same IP address but when you disconnect and reconnect you will probably be given a new (different) IP address. The IP address you had before will be given to someone else.

A static IP address is an IP address that is assigned to you computer by an Internet service provider (ISP) to be its permanent address on the Internet. Every time you’re connected the same IP address will be assigned.

If you need to make your dynamic IP address into static IP probably you have to contact your ISP (Internet service provider) and ask them for assign you a static IP. So you can have an IP address permanently assigned to you which you can use every time you are connected.

Making your IP address static cannot done yourself because an IP address needs to be globally unique, you can't just pick one for yourself as you desire. It needs to be assigned to you by your ISP.

  • Advantages of having Dynamic IP:
1. If you have a hole in your firewall and a dynamic IP, then every time you disconnect and reconnect any hacker who found you by your IP address on the first visit, will much more difficult to find you again because your address will be different.

2. Fixing IP bans from Forums, chartrooms and etc.

3. Override Time limitations which are depend on the IP address (I.e. Rapidshare).

  • Advantages of having Static IP:
The only reason I know why you would need a static IP is if you want other users to be able to connect to your computer through internet. (I.e: Web server)

Prevent Writing to USB Storage Devices

6/21/2009 11:13:00 AM Posted In Edit This 0 Comments »

  • go to run ,Start the registry editor
  • Go to the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Controlkey
  • If there is no key called StorageDevicePolicies, create it. You do this by right-clicking the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control key, and selecting New > Key from the menu.
  • Select the StorageDevicePolicies key
  • From the menu select Edit > New > DWORD Value
  • Name the new value WriteProtect
  • Right-click the WriteProtect value and choose Modify
  • In the Value Data: box enter 1
  • Exit the registry editor, and restart your computer

Set your windows so they all have the same view

6/21/2009 10:52:00 AM Posted In Edit This 0 Comments »

To set your windows so they all have the same view

1.

Click Start, and then click My Documents.


2.Click the Views button, and then click the view you want to apply to all folders.

3.Click Tools, and then click Folder Options.

4.Click the View tab, and then click Apply to All Folders.

5.Click Yes.

6.Click OK.



Auto Reply For Gtalk, Yahoo Messenger, Msn and AIM etc Read more: http://www.technixupdate.com/auto-reply-for-gtalk-yahoo-messenger-msn-and-aim-etc..

6/21/2009 10:46:00 AM Posted In Edit This 0 Comments »

Answer.im is one of useful FREE online service which works as a auto reply answering machine for your instant messenger like Yahoo messenger, Google Talk, MSN, AIM and ICQ.

This service could be really useful to auto respond to the messages on your instant messengers in case you are away from your computer or busy in doing some other important work



It works in the following way mentioned below

1. Go to answer.im and Login through your instant messaging account credentials.

2. Setup your online account status and type in your answer text and click Save Changes button.

3. Click Exit, to exit but your account will stay online, and respond to messages by your friends.
This service will auto respond to all the messages by your friends and contacts list even if your computer is switched off.

Check out answer.im