Switching On the Computer â€“ ROM and RAM Booting
After the hardware components are properly configured and matched to each other, we get a personal computer system â€“- say, with a Monitor, a Keyboard, and the Computer Cabinet with at least one external disk drive â€“ CD/DVD or Floppy. Technical Data used in the field explained in computer courses in Rawalpindi. If you now switch on the computer, you will hear a light beep sound through the built -in computer speaker, called the system sound, indicating computer memory is booting (starting), and will also se e the display in the Monitor screen of the result of self -test of the Memory of the Computer. This is called the ROM Booting. If this ROM Booting is completed OK, the computer CPU is ready for work. So, it means the CPU has taken its basic hardware configuration information from the ROM table, and shown its status as OK in the Monitor Screen. This is the first step every computer performs. Every time you switch on a desktop computer, you will see this. If it fails, you should check the whether the proper RAM card is used and properly fitted into its slot. Due to dust and moisture obstructing the contact points, problem frequently occurs here. Some more details of computer courses in Rawalpindi are as under. Now to work further, you have to feed the computer with additional information in the form of system software. In fact the CPU of the computer, after ROM booting, will automatically search for an Operating System first in the Hard disk and, if not found in the hard disk, then in the CD Disk drive, or in the other way round, as we may sequence in the BIOS Boot information. Note that without the operating system software, to be loaded automatically in the RAM, the computer would not be able to proceed with further operation, as it does not know how to work. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join computer courses in Islamabad.