L-1.7: System Calls in Operating system and its types in Hindi 

Hi sir i am ur follower .Today i gave NET exam ur last minute vedios helps alot sir .There are two questions aboit time complexities and two or three questions on closure properties in Toc . Thank u very much sir pls make such vedios which r very useful in competitive exams

Watch L1.10 first User vs Kernel or read the lines below : User Mode Vs Kernel Example Bank : We are users (customer) over there, we make calls & the bank employee act as a Kernel which responds to our call and executes our request.

Hello sir...thanku so much... aaj mera NET ka exam tha and sirf aapke lectures ke karan mera exam acha gaya specially CN and TOC ka grammer topic... aapke padhane ka tarika best hai... god bless u sir... Archana..

I am watching this video second time, first time only pas hone k liye dekha tha , now for cracking interview, tum bht mast kam krta h varun bhai♥️

Watch L1.10 User vs Kernel Mode before this.

Life mai har kisi ko ek na ek aisa teacher milta hai jo paper ke mahine pehle pada ke bache ko pass karwadeta hai mere liye aap ko in my 2nd 3rd and 4th i passed many subjects just becouse of you aapki video dekhke thankyou so much sir

Sir ap mahan ho jo free me Aur conceptual tarike se padhate ho Jo Ki hamare University level exam ke liye best hai Thanks sir

Aap itna acha smjhate ho... Agr sb teachers is trike se smjhaye... Bache jada interest se prenge... Thank you 🙏

I am truly grateful to you Sir. I just want to request you that I am going by the NET schedule you recently uploaded. That Schedule has links to your corresponding topic videos. But few subjects do not have any related videos of yours. Please upload complete subject videos for NTA UGC NET Computer Science.

Thank you so much sir for this explanation. You have made this topic very easy even for a beginner.

following your lectures since last 2 years ,2 sal pas krwa dia sir g thank u 😄

hello sir. today i appeared in net exam. with help of your videos i attempted it very good.there is one ques about cluster indexing, time complexity. i really thankful to u sir. please sir always help us.. god bless u sir...

Really you are very good teacher...You teach as not a teacher just like a friend..Thank you very much sir.....❤️❤️

Hlo bhaiya good evening......hope u r well .aaj net ke CS PPr ka exam tha n m happy ki ur lecture vedio thro ur channel is vry helpful .time complexities, boolean algebra , ROUND-ROBIN SE CPU brust wala aaya tha FIFO page replacemnt se solve karna tha aur systam call mei fork ka kya kaam h n DBMS se condidate key banana tha ki kya hoga .....3-4 ques hi aaye this time .maine within 3 weeks aapke channel ke thro bahut cover miya n ques aaye aapke mock test wale se .thnx a ton bhaiya .....GOD BLESS U as .....aapke jaise tutor jo CS ke tough topic smoothly teach karte ho easily nahi milte toh aaj mai bhi kahti ki ppr yough tha but relaxed bcoz exam sayisfying hua mera .1 point to remmbr that ki this time 50-50 ka game tha numerical as well as theoritical part se aaye ques.1 ques cloud computing se tha in which OS N APPLICATION SOFTWARE ETC. H then usko kya bolegein.......PAAS,SAAS,IAAS 1 aur tha ....what's the right ans.

Thanku so much sir for mock test....almost 10 questions Aaye the same...aisa lga exam aapne hi bnata..From 1.boolen functions 2.toc 3.time complexity 4.sql commands 5.postfix expression 6. Os (round robin n dirty bit,semaphore mutual exclusion)

amazing video sir

I really liked the way you convinced the things on this lecture video, though my mother tongue is not Hindi, i liked it.Of course I know Hindi, really well explained

Thanks for all the content you put out - it's truly amazing Thank u Sir 🙏

Thank you for providing such a great content for free ❤

Thank u sir apne bahut achhe se smjhayya pura system call ka concept clear ho gya 😊😊

Best ever channel I still found Thank you soo much sir🙏🙏🙏🙏🙏🙏🙏🙏I'll be grateful to you for this forever ❤️ god bless you 🙏 💖 ❤️ hope to see 2M soon

Hi sir , thnxx very much for this lecture i finished my gate syllabus and i had skipped this topic of user mode, kernel mode and system calls and now i am very happy that u taught it otherwise i had to read this topic from book Thnxx very much sir

Hi Sir....Thank u a lot Sir...from ur mock test series subject wise..we got 2 ad more (similar type)of questions in todays NET Exam (Dec-18)..plz conduct more ad more mock test series..subject wise..And even last minute viedos are so helpfull..even these last minute viedos...make more ad more..plz

Please arrange these lectures serially, like lecture 1, lecture 2, lecture 3 and so on..

Thank u very much sir....its worth watching ur vedios almost 12 questions from ur covered topics....keep posting on more topics...

Im from kerala your lecture is something powliiiii🤩❣️😍 Vere level..🔥🔥

Sir Your Lectures are life saving. Thank you for all efforts. Keep getting prayers from us.

Sir aapki tarif ke liye mere pass shabd nhi jab kabhi mera man computer science se bhatkane lagta hai aapki video dekhne lagte hai bus ek naya josh aa jata hai sir please aap itne acche se padhate hai meri request hai ki kvs ke liye classes start kre please sir please please please

What a awesome teacher! If I want to take screenshots of the board then he does not allow me. Because in every second some body part of him present on the board😃

Thanks for completing the playlist for all type of student needs

Thank you for explaining in such easy way, the lecture was very interesting ☺️

Keep it up ....bhaiya aaj ka topic 6.44 pm pe complt kiya maine as m happy mera exam satisfying tha bcoz of GATE SMASHERS

Thank you sir for uploading video on system call..can you please upload more video on this topic

your analogies makes it easy to understand any concept!

this videos are really nice sir is there any need to read books after seeing this videos or if then which one

Kitna easy tarike se padate ho 👌 😎 ty sir 8-)

Thanku so much ❤️ sir for this type of awesome explanation🙏🙏🙏🙏🙏 ur the good better best sir I have seen your max lectures

Sir I had my ugc net exam today. There were a lot of questions on Artificial intelligence and computer graphics. It would be a great gift to us if u start a series on these topic.

Way of teaching methodology is much interesting

Sir 2 to 3 direct questions came from ur series.. even though did hard d question paper was not so good.. pattern fully changed

Ys mujhe doubt hua tha ki aapne ques toh set nahi kiya bcoz mock test se aaye ques that's vry happy ......dirty bit ,post fix, command se aaye ques .m happy ques achha tha bcozof ur lecture vedio bhaiya ....mostly question wahin se aaye jo aapne evry time vry-vry important bataya tha .u r such a vry good mentor n guide 😊

Thank you so much for these videos! I always come back to them to prepare for placements.

There are five types of system Calls: 1. File related 2. Device related 3. Information related 4. Process related 5. Communication related

Thank u sir for valubale inforamation i am bca student i did not understand my university lectures i am learning all concepts from you sir thank you once second 🙂🙏🙏🙏🙏🙏🙏

I really love your videos and respect your efforts. Sir as per your playlist last video toh process lifecycle h aur is video me aap bolre ki in last video we learned about user mode vs kernel mode. Sir please clear this doubt ki is course ko issi playlist k according dekhna h ya aap please numbering kar dijiye. Ye doubt mujhe aur mere kch colleagues ko bhi hora jo jo ye access kar rahe h. Thanks alot !

Sir ap boht achy ha ap jese teachers q nai ha universities ma . boht acha parhaya

Sir dirty bit question puchha gya tha aur bhi 2-3 questions same jaise aapne mcq me kraye the. Thank u sir for your guidance.

Thankyou sir, To make our book easy

Simple and understandable.

Mostly 2009 to 2012 tak k previous question jyada Aaye the g .... Sir g maza aa Gaya g .. sachhi

Thanks sir very much you are best

Thank you for teaching in so easy way

Thank you sir

video is useful

Sir you are great..thanks

Please make videos on socket programming specially on IPC techniques

A system call is a function that a user program uses to ask the operating system for a particular service.

You are awesome👍😊 teacher 👩‍🏫‍ because clear any concept Easily 💞🔥

Nice explanation sir

Watching your videos from Pakistan 🇵🇰 very super nice lectures great respect and love ❤️ but sometimes order of videos in playlist occurs wrong.

Sir ,you are great,your teaching skills is very excelente

I think L-1.10 should come before L-1.7 as you took the reference of the last video i.e. "user mode and kernel mode"

I always confused in this topic.. now clear ..Thank u very much

Thank sir Clear kernal and user process🙏

00:02 System calls shift from user mode to kernel mode. 01:26 System calls are used to access devices and resources through the kernel. 02:32 Operating systems use system calls indirectly through APIs and local libraries 03:57 Programs become processes in operating system when in running mode. 05:15 System calls are used for file and device related operations in operating systems. 06:39 System calls in operating system are used to access process-related information and system's time, date, and data. 07:55 System calls are used for process control and synchronization 09:06 System calls in operating system include inter-process communication and protection/security related calls

Superbb

U are brilliant teacher I wish uni ma bi asy teachers ho ❤😍

Thanks sir os ke paper ki achi tyari kra di aap ne thanks #Sir .....

Nice explanation

Thank you sir Very nice explanation Don't even understand in college

Assalam o aliakum!! Sir your all lecturers are very helpful. Thank you so much for helping us... 💖

Sir aaj computer science ugc net Ka exam bahut easy thaa g ... Previous question 80 % Aaye the g ....

Excellent ❤❤❤

Thanks sir 👌

Helpful

Sir cpu 2+2 jo karega woh kernal mode mein karega ya user mode mein?

Very goood teaching ☺️

Very nice

Very nice teaching

File related, device related, information related, process related , communication process

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Great explanation sir!!

Superb sir...

sir net exam finished... your classes help me alot thank u sir.Also one question came from your os mock test about the dirty bit.

I watched all the adds without skipping so that this legendary content & his created get some credit :- )

thanx bro you helped a lot !!!! thanku very much

Sir your explanation is too good, but what should write in university exams means the complete definations etc.. so can u notes give us the notes ??

Aapke videos pehle like krta hun ... Baad mai dekhta hun...

Outstanding.

thank you so much sir ..............

Ur way of explanation is very interesting.. itna bore subject b acha lgta h apky lecture sun kr

Thanku sir

Sir ur declaration is very clear.....

Sir, Operating system ki playlist me lectures ko serial number se add kar dijiye, kyunki sir ek lecture dekhta hoon aur uske baad jab dusra lecture start hota hai to wo lecture previous lecture me batayi gayi important topics se nahi hoti Please, sir sequence wise add kar dijiye lectures ko Playlist me pata nahi lag raha hai ki kaunsa 1st lectures hai aur kaunsa 2nd Sir ek baar check kar lijiye Please sir 🙏

Sir g aik question dirty bit Ka Aaya tha Jo Aapne btaya thaa g .... Thank you sir g

Thanks sir bahot achhe se samaj aya

Thanks sir

best superb keep up the great work

Sir mai aapka video dekh ke os me 95 marks layi hu so Thank you so much sir

Sir please playlist videos order me arrange kariye...pls