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.
what is the size of:-
ReplyDelete1.character type pointer
2.integer type pointer
3.float type pointer
4.double type pointer
Neeraj Sinha,
web programmer,
punjab, Republic of India.
The size of pointer is independent of its type... because it has to hold only address at any cost...
ReplyDeleteand thats why the size of pointers of all types is similar and is 2bytes.
enjoy!!!
Neeraj Sinha,
web programmer,
punjab, Republic of India.
Say what is the difference between
ReplyDelete#include and #include"iostream.h" ?
Neeraj Sinha,
web programmer,
punjab, Republic of India.
in any type its size is 2 bytes..bcoz..pointer's size means nothing but the space required to store the addresses dat is of integer type............
ReplyDeletein #include the header file is not specified....but for other one its specified...for the 2nd one #include"iostream.h" searches the source path first the include path...
ReplyDeletetell me if its sufficient....
we can also say that #include copy a specified file(header file) to be included in the place of the directive
ReplyDelete