bioscmos, post, boot

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BIOS, CMOS, POST Prepared by Prem Sahu Ambika Institute ofComputer Technology

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Page 1: Bioscmos, post, boot

Ambika Institute ofComputer Technology

BIOS, CMOS, POST

Prepared by Prem Sahu

Page 2: Bioscmos, post, boot

Ambika Institute ofComputer Technology

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.

Page 3: Bioscmos, post, boot

Ambika Institute ofComputer Technology

BIOSTo see the IDE or SATA hard disk, Processor, RAM and Cache memory

Page 4: Bioscmos, post, boot

Ambika Institute ofComputer Technology

Choose first boot device

Page 5: Bioscmos, post, boot

Ambika Institute ofComputer Technology

Advance UEFI BIOSIt is advanced version of BIOS where we can work with

both mouse and keyboard.

Page 6: Bioscmos, post, boot

Ambika Institute ofComputer Technology

CMOSComplementary Metal Oxide Semiconductor

It is hardware inbuilt in motherboard to keep the BIOS setting.

It keep running the system time after system shutdown

Page 7: Bioscmos, post, boot

Ambika Institute ofComputer Technology

POSTPower On Self TestIt is process where the system test the Processor,

RAM, and hard disk for any fault tolerance or error each time system start.

Page 8: Bioscmos, post, boot

Ambika Institute ofComputer Technology

Real Mode and Protected ModeReal mode means command line interface,

When system start

Protected Mode means graphics user interface