BIOS kya hai-(our ye kaise kam karta hai)

What is BIOS

CPU ke bagal me, motherboard par paya jane wala sabse important chip BIOS hai ek framwear device , bios bootup par important sewaye pradan karta hai aapke system ke

liye hardware standard our configiration our aapke system ko costomize karne ke kai tarike, to chaliye jante hai Bios kya hai.

BIOS computer system ka ek itergral hissha hai| bios pc ke framwear ka ek prakar hai our yah pc ke booting process(start-up) prakirya ke dowran use hota hai|

PC ke ON hone par shuru hone wala yah pahala software hai operating system load karte time,bios computer ke sath hardware jaise ram,processor,keyboard,mouse,hard drive aadi

ka pahchhan karta hai our inhe configar karta hai our iske bad hi computer memory me operating system load hoti hai|

BIOS FuLL FORM

Full from of Bios is- Basic input output system

Bios Meaning

Iska matlab Basic input output system hai|

BIOS kya hai

Bios basic input output system hai yah biult-in software hota hai, jo disk se bina programs ko access karta hai ki computer kya kar sakta hai.

BIOS kisi bhi computer system ka ek important part hota hai| example ke lite, personal computer (PC) par,BIOS me keyboard ,display screen disk drive serial communication our kai diverse function ko control karne ke liye required code hota hai.

CMOS kya hai

CMOS ka pura name complementary metal oxide semiconductor hai jo ki ek prakar ki battery hoti hai.jiska kam bios me sabhi setting ko secure karna hai cmos dawara hi bios ,

computer booting process ke start karta hai.jab kabhi computer ka cmos battery kharab ho jati hai to plugin karne ke bad jab computer start hota hai to wo pahale se jada time leta

hai aapko bhi pta hi hoga ki computer band ho jata hai to usme time me kai dikkat aa jati hai and tab wi start kiya jata hai to dobara to uska time sahi ho dikhata hai and ye kam ya jada nhi hota hai iski setting BIOS me hoti hai jisse CMOS batter me chalaya jata hai.

Bios and cmos Defference

# BIOS ka pura name basic input output system hai and CMOS kan pura name complementary metal oxide semiconductor hai.

# BIOS ka kam computer me input and output ko confiugar karana sari setting ko store rakhana and computer ko store karna hai jabki CMOS ka kam battery ke rup me BIOS ki sari setting ko secure karna hai.

# CMOS battery kafi choti hoti hai jo motherboard pe lagi hoti hai jabki BIOS software motherboard me lagay gaye EPROME(Electrically Erasable programmable Rom) ROM chip par store hoti hai.

# Enka kam ek dusre ke bin adhura hota hai lekin yadi CMOS kharabho jaye to BIOS fir bhi kam karta hai lekin BIOS kharab hone pe CMOS bilkul bekar ho jata hai.

# CMOS pe CR2032 set battery dawara power diya jata hai jise CMOS battery ni kahte hai our BIOS ko power CMOS se milti hai.

# CMOS kisi prakar ka data store nhi karta lekin ye is bat ka dhyan rakhata hai ki jab computer band ho jata hai fir bhi ki CMOS chip ko power milti rhe jisse koi bhi data lose na ho jabki BIOS un share data ko store karta hai.

# CMOS ka pahala kam computer band ke bad bhi clock ko chalate rahne dena hai esiliye jb computer band karke dobara start kiya jata hai to time and tarikh sahi hoti hai our ye sari setting BIOS ke dowara hoti hai.

# CMOS ko anya namo se bhi jana jata hai ajise ki Real-time clock(RTC),Non-volatile RAM (NVRAM ya CMOS RAM etc jabki BIOS ko computer Boot proccess start-up ke rup me jana jata hai.

BIOS Interrrupt

Interrrupt ek condition hoti hai jiske karan processor ko kuch time ke liye dusra task karana padta hai our jab wah task pura ho jata hai to wah wapas apne paahale wale task ko execute karta hai.

Dusre shabado me me kahe to “interrupt,processor ke liye ek signal hota hai jo hardware ya software ke dawara hota hai.yah ek event ko indicate karta hai jise jalad se jalad solve karna hota hai”.

Jab processor ke dawara koi process execute hoti hai and user dusri process ko execute karne ke liye request karta hai tab jo running process hoti hai usme rukawat hoti hai.ise

interrupt kah sakte hai. jaise ki mouse se click karane par cursor ko drag karne par , document ko print karne par aadi se interrupt ho sakta hai.

processor and peripheral device ke data ka transfer process ke dawara hota hai. prantu process tab tak transfer ko shuru nhi kar sakata jab tak ki peripheral device process se

communicate karne ke liye ready nhi ho jati.our tab peripheral device process se communicate karne ke liye ready ho jati hai to wah ek interrupt signal ko generate karti hai.

Jitne bhi input-output device computer se judi rahti hai wo sabhi interrupt request ko generate kar sakti hai.

interrupt system ka mukhaya karya interrupt ke source ko identify karna hota hai yah bhi ho sakta hai ki bahut sari device ek time me ek sath processor se communicate karne ki

request kare .tab interrupt system ko yah decide karnna hota hai ki kis device ko pahle service pradan ki jai.

Type of interrupt

interrupt two type ke hote hai

1. Hardware interrupt
2. Software interrupt

Hardware interrupt

Jab process ko koi signle external device ya hardware se prapt hota hai tab yah interrupt,hardware interrupt kahalata hai|

Ek example lete hai:-jab ham koi kam karne ke liye keyboard par koi key click karte hai to key ke click se ek interrupt signal prapt hota hai.yah signal process ko kuch task pura ke liye kahata hai.|

Hardware interrupt two type ke hote hai:-

1. maskable interrupt

Is prakar ke interrupt ko process ke dawara ignore ya delay kar diya jata hai jab isme highest priority interrupt hua hota hai to.

2. non-maskable interrupt

is prakar ke interrupt ko process ke dawara ignore ya delay nhi kiya ja sakta .our ise turant process karna padhta hai.

Software interrupt

Wah interrupt jo computer ke internal system ke dawara hua hota hai us software interrupt kahate hai ye bhi two type ken hote hai:-

1. normal interrupts

we interrupts jo software instructions ke dawara huwe hote hai unhe normal interrupt kahate hai.

2. exception

program ko execute karte time hone wale interrupt ko exception kahte hai.example ke liye :-program ko execute karte time yahi hame koi aishi value prapt hoti hai jo zero se divide hoti hai to ise exception kahate hai.

Function of Bios

BIOS ka kam

BIOS ka kam PC par operating system boot karna hota hai|

Jab computer on hota hai, tab BIOS kai sari bate karta hai|

# Custom setting ke liye CMOS setup ka jach|

# Interrrupt handlase our device drivers ko load karna|

# Power-on-self-test (POST) ka full form karna|

# System setting ko display karna|

# Kon se device boot ho sakate hai yah tay karna|

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