BC4 - Boot Process and Storage Capacity Flashcards
What is boot process?
The process of being set up
What storage devices are part of booting process?
SSD and HDD
Briefly describe the sequence of boot process.
Power On —> POST —-> BIOS —-> Bootstrap Loader
What happens during Power On?
Power connected to motherboard and its components
What happens during POST
Test functionality of hardware.
No issue - 1 beep
Got issues- multiple beeps
What happens during BIOS
Displays computer specs
Opens up conection to boot disk
loads bootstrap loader from ROM to RAM
What happens in Bootstrap Loader.
Find the OS in Boot Disk
Loads OS into RAM for CPU to execute
OS ready to usr
What is Bootstrap Loader?
Bootsrap Loader is a small program to load and execute other program on a well defined manner.
What is storage capacity?
Capacity limit of a storage device that is measured in bytes
What is the metric prefix for storage capacity?
Kilo- 10^3 / 2^10
Mega- 10^6 / 2^20
Giga- 10^9 / 2^30
Tera- 10^12 / 2 ^40
Peta- 10^ 15/ 2^50
Exa 10^18/ 2^60
11111111 is the largest 1-byte data. What does this equvalent to?
128+64+32+16+8+4+2+1=255