Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Illustrate Header section of a device driver?
Header comprises information which allows DOS to identify the driver. It also comprises pointers which allow it to chain to other drivers loaded into the system.
Header section of a device driver is 18 bytes in length and comprises pointers and name of the driver.
Following structure of the header:
CHAIN DD -1 : link to next driver
ATTR DW 0 : driver attribute
STRT DW START: address of strategy
INTER DW INT: address if interrupt
DNAME DB 'MYDRIVER': driver name.
The first double word comprises a -1 which informs DOS this is the last driver in chain. If extra drivers are added DOS inserts a chain address in this double word as the segment and offset address. Chain address points to the subsequent driver in the chain. This enables additional drivers installed at any time.
The attribute word signifies the type of headers included for driver and the type of device the driver installs. It also signifies whether the driver control a character driver or a block device.
What is the system call available to change the personality? The system call personality prefers to a method to modify its implementation domain in order that Linux can emulate
What is Difference between write back and write through cache? A caching method wherein modifications to data into the cache aren't copied to the cache source till absolutely n
Q. Define Various classes of Interrupts? Figure below gives list of some common interrupts and events which causes occurrence of those interrupts. Figure: Various clas
Explain the product lifecycle in an Operating System
Q. Functions for various communication modes? MPI offers both non-blocking and blocking send/transmitting and receive operations for all modes. Functions for various commun
Q. Determine the complete OR gate and AND gate decoder count for an IC memory with 4096 words of 1 bit each, using the Linear select memory organization and Two dimensional Memory
What do they signify Which one is critical for calculating maximum clock frequency of a circuit? Ans) Set up time constraint implies how late the input signal can arrive befor
Convert the decimal number 45678 to its hexadecimal equivalent number. Ans: (45678) 10 =(B26E) 16 (45678) 10 =(B26E) 16
Problem (a) Forensic methodology consists of three phases. Briefly explian these three phases. (b) Sometimes it's best not to perform hard-disk acquisition. Provide two
Explain micro programmed control. Ans: A micro programmed control unit is made around storage till is called a control store where all the control signals are stored in a prog
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd