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.
Example of Bitwise-AND Operator In the following example, the bitwise-AND operator (&) compares the bits of two integers, nNumA and nNumB: // Example of the bitwise-AND oper
Explain about the Microsoft and the Netscape With the increasing competition between certain vendors especially the Microsoft and the Netscape, there have been a number of chan
Shadow RAM is a copy of Basic Input/Output Operating System (BIOS) routines from read-only memory (ROM) into a particular area of random access memory (RAM) so that they can be acc
What is booting? When the power is turned on, the OS has to be loaded into the main memory which is taken place as part of a process known as booting. To initiate booting a tin
How many select lines will a 16 to 1 multiplexer will have ? Ans. For 16 to 1 MUX four select lines will be needed to select 16 (2 4 ) inputs.
Explain adaptive routing. Adaptive routing defines the ability of a system, by which routes are characterised through their destination, to change the path that the route takes
Q. Explain working of D Flip -Flop? D (data) flip-flop is modification of RS flip-flop. Problem of undefined output in SR flip-flop when both R and S become 1 gets avoided in D
Q. Explain about wildcard character in DOS? Sometimes you may like to list files having similar names. Let as suppose that these files are present in a root directory of drive
Q. How to Information transfer from one register to another? Information transfer from one register to another is designated in symbolic notation by a replacement operator. For
Compare hypertext versus hypermedia. Hypertext is basically similar as regular text - it can be stored, read, searched, or edited - with a significant except ion: hyper text h
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