test ur C skills

Which of the following are unary operators in C ?
A.  !
B.  sizeof
C.  ~
D.  &&
E.  =

WINDOWS

How Windows Product Activation (WPA) Works?

Windows Product Activation or WPA is a license validation procedure introduced by Microsoft Corporation in all versions of it’s Windows operating system. WPA was first introduced in Windows XP and continues to exist in Windows Server 2003, Windows Vista, Windows Server 2008 and Windows 7 as well. WPA enforces each end user to activate their copy of Windows so as to prevent unauthorized usage beyond the specific period of time until it is verified as genuine by Microsoft. How WPA really works was a closely guarded secret until GmbH analyzed WPA using a copy of Windows XP RC1 and published a paper on their findings.

Why activation?

Microsoft’s intention behind the activation is to limit the usage of it’s Windows operating system to only one machine for which the retail license is issued. Any other computer which runs on the same license must be disallowed from using the software. Thus WPA demands for activation of the product within 30 days of it’s installation so as to ensure that it is genuine. 

What does “Genuine Windows” means?

The copy of Windows is said to be genuine only if the product key used during the installation is genuine. It means that a given product key (retail license) must be used to install Windows only on one computer for which the license was purchased. Thus if the same key is used for the installation on another computer, then it is said to be a pirated copy. 

Exactly what information is transmitted during the activation?

When you activate your copy of Windows you are transmitting an Installation ID code to the Microsoft either by phone or Internet depending on the method you choose to activate. Based on this, the Microsoft’s licensing system can determine whether or not the installed OS is genuine. If it is said to be genuine, then the system will receive the Activation ID which completes the activation process. If the activation is done via telephone then the Activation ID needs to be entered manually to complete the activation process.

What information does the Installation ID contain?

This Installation ID is a 50-digit number which is derived from the following two data.

1. Product ID – It is actually derived from the 25-digit product key (the alphanumeric value that is printed on the sticker over the Windows CD/DVD case) that is entered during the installation of the operating system. The Product ID is used to uniquely identify your copy of Windows.

2. Hardware ID – This value is derived based on the hardware configuration of your computer. 

The WPA system checks the following 10 categories of the computer hardware to derive the Hardware ID:

• Display Adapter
• SCSI Adapter
• IDE Adapter (effectively the motherboard)
• Network Adapter (NIC) and its MAC Address
• RAM Amount Range (i.e., 0-64mb, 64-128mb, etc.)
• Processor Type
• Processor Serial Number
• Hard Drive Device
• Hard Drive Volume Serial Number (VSN)
• CD-ROM / CD-RW / DVD-ROM 

How is the Installation ID validated?

The Installation ID needs to be validated to confirm the authenticity of the installed copy of Windows. So after the Installation ID is received by Microsoft, it is decoded back so as to obtain the actual product key and the hardware details of the computer involved in the activation process.

The Microsoft’s system will now look to see if this is the first time the product key is being used for the activation. This happens when the user is trying to activate his Windows for the first time after purchase. If this is the case then the Installation ID is validated and the corresponding Activation ID is issued which completes the activation process.

However Microsoft system will now associate this product key with the hardware ID of the computer and stores this information on their servers. In simple words, during the first use of the product key, it is paired together with the Hardware ID and this information is stored up on the Microsoft servers.

What if a computer running a pirated copy of Windows attempts to activate?

 The activation fails whenever the copy of Windows installed is not said to be genuine. This usually happens when the product key used for the installation is said to have been used earlier on a different computer. This is determined during the activation process as follows:

During the validation of the Installation ID, the Microsoft’s system checks to see if the same product key was used in any of the previous activation processes. If yes then it looks to see the Hardware ID associated with it. The computer running a pirated copy of Windows will obviously have a different hardware configuration and hence the Hardware ID will mismatch. In this case the activation process will fail.

Thus for a successful activation, either of the following two cases must be satisfied:

1. The product key must have been used for the first time. ie: The product key should not have been used for earlier activations on any other computer.
2. If the product key is said to have been used earlier, then the Hardware ID should match. This happens only if the same computer for which the license was genuinely purchased is attempting for subsequent activation.

can you answer in the following program how long will the for loop get exxecuted?

#include<stdio.h>
int main()
{
int i;
for(;scanf("%d",&i);printf("%d\n",i));
return 0;
}

TECH KNOWLEDGE

How Windows Product Activation (WPA) Works?

Windows Product Activation or WPA is a license validation procedure introduced by Microsoft Corporation in all versions of it’s Windows operating system. WPA was first introduced in Windows XP and continues to exist in Windows Server 2003, Windows Vista, Windows Server 2008 and Windows 7 as well. WPA enforces each end user to activate their copy of Windows so as to prevent unauthorized usage beyond the specific period of time until it is verified as genuine by Microsoft. How WPA really works was a closely guarded secret until GmbH analyzed WPA using a copy of Windows XP RC1 and published a paper on their findings.

RUPEE SYMBOL

Indian Rupee symbol has been announced and has been sent to the government for approval. And if you are wondering how will you type the rupee symbol using your keyboard, well it might take a year or so to get the symbol in action (to gain acceptance in India) and two years for international acceptance.
Technically speaking, the symbol will be first sent to Unicode Consortium’s technical committee, in order to include the same in Unicode database.

The symbol will also be included in the Indian Standards, viz. 13194:1991 – Indian Script Code for Information Interchange (ISCII), through an amendment to the existing list by the Bureau of Indian Standards. The ISCII specifies various codes for Indian languages for processing on computers along with the key-board lay outs.

if u guys are thinking how to type it in your document...then just install the font "rupee foradian".open the document...and u can directly insert it or go to auto correct options...type "rs" to be replaced with the rupee symbol,now whenever u type "rs" it'll b automatically replaced with the rupee symbol.

request

guys....plzzzz.....leave your...comments....and also......share...your technical knowledge...using...comments.......

ORKUT

The Orkut homepage
URL www.orkut.com
Commercial? Yes
Type of site Social network service
Registration Required
Available language(s) Multilingual (48)
Owner Google Inc.
Created by Orkut Büyükkökten
Launched January 22, 2004
Alexa rank ▼ 77 (September 2010[update])[1]
Current status Active

Orkut is a social networking website that is owned and operated by Google Inc.[2] The service is designed to help users meet new friends and maintain existing relationships. The website is named after its creator, Google employee Orkut Büyükkökten. Although Orkut is less popular in the United States than competitors Facebook and MySpace, it is one of the most visited websites in India and Brazil.[3] In fact, as of April 2010, 48.0% of Orkut's users are from Brazil, followed by India with 39.2% and United States with 2.2%.

TECH KNOWLEDGE

DO U KNOW WHO IS THE CEO OF FACEBOOK?

Mark Zuckerberg, the 22-year-old founder and CEO of social-networking site Facebook

c language........

can you  print '\n' on the screen?
first think yourself......................
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here is the answer....
printf("\\n");

HIII! GUYS