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A device driver is software interface that manages communication with and control of a particular I/O device or type of device. It is task of device driver to convert logical requests from user into specific commands directed to device itself. For illustration a user request to write a record to a floppy disk will be realised within device driver as a sequence of actions like checking for presence of a disk in drive, locating the file via disk directory, positioning the heads etc..
Model-View-Controller (MVC) is a design pattern in which "the user input, the modelling of the external world and the visual feedback to the user are explicitly splitted and handle
It depends on our requirement. When we are needed an integer to be stored in 1 byte (means less than or equal to 255) we use short int, for 2 bytes we use int, for 8 bytes we use l
Describe about the role of bitmap indexes to solve aggregation problems? Ans) Bitmaps are very useful in begin schema to join large databases to small databases. Answer queries
A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if A) the virus were placed on the system at system low (the compartment that all o
How are problems of clock skew minimized? Clock skew, when done right, can also benefit a circuit. This can be intentionally introduced to reduce the clock period, at that the
Process of Breadth first search: It's very useful to think of this search as the evolution of the given tree, and how each string of letters of word is found via the search in
how to find the type of cohesion in a module
What are overlays? To enable a process to be larger than the amount of memory allocated to it, overlays are used. The idea of overlays is to keep in memory only those instructi
We have to make an application that will dynamically add a menu strip with menu items to a form(ie NOT dragged and dropped onto the form) in Visual Basic. The menu strip should be
Classify data networks. Data Network Classifications: Data Networks are classified as per to their geographical coverage: - Wide area networks (WANs) - Metropolitan ar
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