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!
Device Drivers in UNIX, MS-DOS and Windows System
Though device drivers are in effect add-on modules they are however considered to be part of system because they are closely integrated with I/O Control System that deals with I/O related system calls.
In UNIX device drivers are typically linked onto object code of kernel (core of operating system). This means that when a new device is to be used that was not included in original construction of operating system, UNIX kernel has to be re-linked with new device driver object code. This scheme has advantages of run-time efficiency and simplicity however the shortcoming is the addition of a new device needs regeneration of the kernel. In UNIX every entry in /dev directory is associated with a device driver that manages communication with the related device. A list of few device names is as displayed below:
Device name Description
/dev/console system console
/dev/tty01 user terminal 1
/dev/tty02 user terminal 2
/dev/lp line printer
/dev/dsk/f03h 1.44 MB floppy drive
How will you allocate sub system? Allocate every concurrent subsystem to hardware unit. General purpose processor or specialized functional unit as follows: Estimate per
Explain Debug monitors. Debug monitors give debugging support for a program. A debug monitor executes the program being debugged in its own control thereby giving execution e
Parallel Computers In India, the design and development of parallel computers in progress in the early 80?s. The Indian Government recognized the Centre for Development of Adva
Single BUS STRUCTURES : The Bus structure and multiple bus structures are kinds of bus or computing. A bus is fundamentally a subsystem which transfers data amongst the compo
Q. Explain Status and Control Registers? For control of numerous operations several registers are used. These registers can't be used in data manipulation though content of som
What do you understand by work flow automation? Work Flow Automation: Organizations often standardize processes over the organization and encourage users to adopt them. Ev
Described Instruction or control hazard? Ans: The pipeline can be stalled due to delay in the availability of an instruction. For instance, this may be a result of a miss in t
1) This project will use an account class that has the members: string account_code; string first_name; string last_name; double balance; Provide a constructor that
What is the Scope of public/private/friend/protected/protected friend? Scope of public/private/friend/protected/protected friend. Visual Basic/Visual C# Public/pub
list advantages of array
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd