Ready hone ke baad OS application program ko hardware ka use efficiently karne ki permission deta hai. Is program ko kernal kaha jata hai.Įk baar kernal ke load ho jane ke baad operating system joki ek system program hai user program ko run karne ke liye ready ho jata hai. Jub computer ko khola jata hai to operating system program ke main memory me load ho jata hai. Parallel operating systems: Is tarah ke operating system me computer ke sabhi running resources ko parallelly manage kiya jata hai.
#Processko 4 serial
Serial processing: Serial processing operating system process ke processing ke liye FIFO( First In First Out) structure ko follow karta hai.
#Processko 4 software
Dusre Software aur users ke bech me coordination: Computer system ke different user ke liye compilers, interpreters, assemblers aur dusre software ke Coordination aur assignment ko manage karta hai.Ĭommonly use kiye jane wale important operating system ke naam niche diye gaye hai:.
Error detecting aids −dumps, traces, error messages aur dusre debugging and error detecting aids ko produce karta hai.Job accounting − Various jobs aur users ke use kiye jane wale time aur resources pe nazar rakhta hai.System Performance Ko control karta hai– Service request aur system response ke beech me hone wale delay ko record karta hai.Security −Ye programs aur data me unauthorize access ko prevent karta hai.Yaha pe kuch dusre importan activities diye gaye hai jinhe operating system perform karta hai. Ye decide karna ke resources kise mile.Information, location, uses, status etc pe nazar rakhna.In directories me dusre files aur directories ho sakte hai.įile management ke liye operating system in kamo ko karta hai: Device ko efficient way me allocate karta hai.Įasy navigation aur usage ke liye file system ko normally directories me organize kiya jata hai.Ye decide karta hai ke kaus se process ko device milega aur kitne time ke liye.Aur jo program is ke liye responsible hai use I/O controller kahte hai. Device management ke liye OS in work ko perform karta hai:
Operating System respective drive ke ki help se device communication ko manage karta hai.
Jub kisi process ko memory ki zaroorat nahi rahti hai to OS memory ko de-allocate karta hai.Jub koi process memory ke liye request karta hai to ye memory allocate karta hai.Multiprogramming me OS ye decide karta hai ke kaun sa process ko kab aur kitna memory milega.Memory ke kis part ko kaun use karega aur kaun sa part useme nahi rahega ye OS manage karta hai.Memory management ke liye operating system niche diye gaye functions ko perform karta hai:
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