Bioscmos, post, boot
0 likes567 views
The document discusses BIOS, CMOS, and POST. BIOS is a small program that stores hardware configuration settings and can be accessed by pressing keys like F2 or Del at startup. CMOS is a chip on the motherboard that stores BIOS settings and keeps the system time even when powered off. POST is the Power On Self Test process that runs each time the system starts up to check for errors in components like the processor, RAM, and hard disk.
1 of 8
Downloaded 22 times
More Related Content
What's hot (18)
Ad
Viewers also liked (20)
Ad
Similar to Bioscmos, post, boot (20)
More from Prem Sahu (12)
Bioscmos, post, boot
- 1. BIOS, CMOS, POST Prepared by Prem Sahu
- 2. BIOS It is a small program which keep the initial hardware configuration and setting of computer. To login to BIOS we have press- F2, Del, F10, Enter. To save and exit, Press F10.
- 3. BIOS To see the IDE or SATA hard disk, Processor, RAM and Cache memory
- 4. Choose first boot device
- 5. Advance UEFI BIOS It is advanced version of BIOS where we can work with both mouse and keyboard.
- 6. CMOS Complementary Metal Oxide Semiconductor It is hardware inbuilt in motherboard to keep the BIOS setting. It keep running the system time after system shutdown
- 7. POST Power On Self Test It is process where the system test the Processor, RAM, and hard disk for any fault tolerance or error each time system start.
- 8. Real Mode and Protected Mode Real mode means command line interface, When system start Protected Mode means graphics user interface