Posts Tagged ‘computer’
Desktop Wallpaper and Facebook Cover
September 29th, 2013, posted in Art
C Program To Shutdown Or Turn Off Computer
February 20th, 2013, posted in CTo shutdown immediately use “C:\WINDOWS\System32\ shutdown /s /t 0”. To restart use /r instead of /s.
C Program to shutdown your computer: This program turn off i.e shutdown your computer system. Firstly it will asks you to shutdown your computer if you press ‘y’ the your computer will shutdown in 30 seconds, system function of “stdlib.h” is used to run an executable file shutdown.exe which is present in C:WINDOWSsystem32 in Windows XP. You can use various options while executing shutdown.exe for example -s option shutdown the computer after 30 seconds, if you wish to shutdown immediately then you can write “shutdown -s -t 0” as an argument to system function. If you wish to restart your computer then you can write “shutdown -r”.
If you are using Turbo C Compiler then execute your file from folder. Press F9 to build your executable file from source program. When you run from within the compiler by pressing Ctrl+F9 it may not work.
C programming code for Windows XP
#include <stdio.h>
#include <stdlib.h>
main()
{
char ch;
printf("Do you want to shutdown your computer now (y/n)n");
scanf("%c",&ch);
if (ch == 'y' || ch == 'Y')
system("C:\WINDOWS\System32\shutdown -s");
return 0;
}
C programming code for Windows 7
#include <stdio.h>
#include <stdlib.h>
main()
{
char ch;
printf("Do you want to shutdown your computer now (y/n)n");
scanf("%c",&ch);
if (ch == 'y' || ch == 'Y')
system("C:\WINDOWS\System32\shutdown /s");
return 0;
}
To shutdown immediately use “C:\WINDOWS\System32\ shutdown /s /t 0”. To restart use /r instead of /s.
C programming code for Ubuntu Linux
#include <stdio.h>
int main() {
system("shutdown -P now");
return 0;
}
You need to be logged in as root user for above program to execute otherwise you will get the message shutdown: Need to be root, now specifies that you want to shutdown immediately. ‘-P’ option specifes you want to power off your machine. You can specify minutes as:
shutdown -P “number of minutes”
For more help or options type at terminal: man shutdown.
How to Make a Portable Hard Drive Bootable
June 3rd, 2011, posted in TEChNoLoGY
The operating system on some computers can crash, requiring an external source for the operating system to be used to recover data and repair the internal hard drive. Creating a bootable portable drive using an external hard drive or USB thumb drive is a solution to maintain a convenient recovery system. A bootable portable drive can also be used to run a different operating system on a computer.
Instructions :
STEP #1 :
Plug the USB drive into your computer’s USB port.
Download and install the HP USB Disk Storage Format Tool program (see Resources section below for link). Then launch the program, select your USB drive and format the USB drive in NTFS format.
If desired, type the name of your USB device in the “Name” field.
Exit the utility program when formatting is complete.
STEP #2:
Download and install the HP USB Key Utility program (see Resources section below for link).
Open a window for your USB drive by selecting the drive under “My Computer” located in your Start menu.
STEP #3:
Insert the Windows installation disk into your CD/DVD drive.
Launch the HP USB Key Utility program and click the “Next” button to begin the wizard.
Select the drive letter from the drop-down menu for your CD/DVD drive.
Click the “Next” button.
STEP #4:
Select the radio button next to the option “Create New or Replace Existing Configuration” and click the “Next” button.
Select the option “Create New Filesystem” and click the “Next” button.
Select the option “With Partition” and click the “Next” button.
Select the option “HP Firmware Flash Package” and click the “Next” button.
Click the “Finish” button when the Completion screen is displayed to exit the utility.
STEP #5:
Launch your Internet Explorer application and type “c:” in the address bar.
Select “Folder Options” under “Tools” in the top menu bar. Select the “View” tab and click the option for “Show Hidden Files and Folders” in the left frame.
Deselect (i.e., uncheck) the boxes next to “Hide Extensions for Known File Types” and “Hide Protected Operating System Files.”
Click the “OK” button.
STEP #6:
Select the following files in the window by holding down the “Control” (CTRL) key while clicking:
boot.ini
ntldr
ntdetect
Drag these files to the open window for your USB drive (they will copy to the drive).
STEP #7:
Safely eject your USB drive and remove your Windows installation disk from your CD/DVD drive.
