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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..
What are the different database integrities? Semantic Integrity. Relational Integrity. Primary Key Integrity. Value Set Integrity. Foreign Key integrity and
The "turn-around" time of a user job is the? Ans. Total time taken to execute the job is called "turn around" time.
How many two-input AND and OR gates are required to realize Y=CD+EF+G ? Ans. Y=CD+EF+G No. of two i/p AND gates=2 No. of two i/p OR gates = 2 One OR gate to OR CD and EF
Q. Why we use Modem? A Modem is one device which most computer users who have surfed Internet are aware of. A modem is neededsincehowever most of telecommunications have becom
Differentiate between static and dynamic step loops. Step loops fall into two classes: Static and Dynamic. Static step loops have a fixed size that cannot be changed at runti
The use of distributed shared memory in parallel computer architecture however the use of distributed shared memory has the problem of accessing the remote memory that results in l
Which is valid syntax of the Fork and Join Primitive? Ans. A valid syntax of the Fork and Join Primitive is as given below: Fork Join
The desired level of coupling is:- Data coupling
Given the information provided in Table 1: Prepare an Activity on the Node (AON) Network Diagram ( I recommend you use MS Project or any drawing tool); Prepare
Q. Factors of Information system which affect the business? There are several factors which affect the business such as - a) Threats of fresh entrants. b) Rivalry surro
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