You should be able to describe in a few words what happens when you boot your pc. Also to discuss about Utility software and application software. Read carefully the notes distributed in the class.
When you turn on the computer, the power supply sends an electrical signal to the devices located in the system unit. devices located in the system unit.
- Which are the files that are loaded and customize the system, where are they found? The have the same name in all systems. ( sections 5, 7, 8 in the bullets below)
- What about booting a server in a network? What further options do we have and tasks? (more options at almpst all bullets below)
- What is the relation between System software, Operating system, Utility software and Application software? (clarify that to yourself read the notes)
When you turn on the computer, the power supply sends an electrical signal to the devices located in the system unit. devices located in the system unit.
- • The processor chip resets itself and
- • looks for the ROM chip that contains the BIOS (basic input/output system), which is firmware that holds the startup instructions.
- • The BIOS executes the power-on self test (POST) to make sure hardware is connected properly and operating correctly.
- • The POST results are compared with data in a CMOS chip on the motherboard. If the POST completes successfully,
- • the BIOS searches for specific operating system files called system files. Once located, the boot drive (the drive from which your personal computer starts), loads the system files from storage (the hard disk usually drive C) into memory (RAM) and executes them.
- • Next, the kernel of the operating system loads into memory and takes control of the computer.
- • The operating system loads configuration information. In Windows XP, the registryconsists of several file that contain the system configuration information.
- • When complete, the Windows XP desktop and icons display, and programs in the StartUp folder are executed.