Archive for the ‘Know it now’ Category
compilation error : undefined reference to ‘main’
Posted by: manoj1987 on: September 18, 2009
I have been learning C back from basics. Recently i tried out a simple program myHello.c , which contained the following code :
1. //myHello.c
2. #include”hello.h”
3. int main(void)
4. {
5. hello(“WORLD”);
6. return 0;
7. }
next, i created hello.h that contained the following code :
1. //hello.h
2. void hello(const char* name);
Finally i created helloFunc.c that contained the declaration [...]
Cross-site scripting(XSS)
Posted by: manoj1987 on: August 29, 2009
Cross-site scripting (XSS) is a type of computer security vulnerability. The expression “cross-site scripting” originated from the fact that a malicious web site could load another web site into another frame or window then use JavaScript to read or write data on the other web site. The definition gradually changed to mean the injection of [...]
Nanopaint technology to guard Church roofs
Posted by: manoj1987 on: August 27, 2009
Most of the Churches in England ( about 33,000 out of 44,000) have implemented a new technique to deal with thieves , who strip of lead and other valuables from the roof of those ancient buildings. This technique/system , named SmartWater , includes painting these valuable roof tops with a “nano paint” , which is [...]
The glorious days of IT industry have ended
Posted by: manoj1987 on: August 11, 2009
The Information Technology industry is no more a business sector that would produce outsized returns. According to Thomas M. Siebel ,chairman of First Virtual Group, “ the promise of the post-industrial society has been realized ” , and the future businesses should address food, water, health care and energy sectors.
As a part of his analysis [...]
Important directories in Linux
Posted by: manoj1987 on: July 15, 2009
/bin
This is the binary directory which contains the executable files.When a program is installed , its binary files are stored here.
/dev
It contains the files that point to the hardware that make up the system.All peripherals are represented as files, and when the service
of a device is called for , the file is looked [...]
