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Q. Explain about hard drives?
Disks are generally mounted on a disk drive which comprises of an arm and a shaft along with electronic circuitry for read-write of data. Disk rotates along with shaft. A non-removable disk is permanently mounted on disk drive. One of most significant illustration of a non-removable disk is hard disk of PC. Disk is a platter coated with magnetic particles. Early drives were large. Later on smaller hard (rigid) disk drivers were created with fixed and removable pack. Every pack held about 30MB of data and became called as the Winchester drive. Storage capacity of today's Winchester disks is typically of order of a few tens of Megabytes to a few Gigabytes. Most Winchester drives have subsequent common aspects:
(a) An Open Disk Casing
(b) Tracks and Cylinders
Figure: The Hard Disk
In a pure combinational circuit is it necessary to mention all the inputs in sensitivity disk? if yes, why? Yes in a pure combinational circuit is it essential to mention all
What are the steps followed in testing? i. Unit testing - The individual components are tested in this method of testing. ii. Module testing - Related collection of independ
Define baud rate The rate of data transfer in serial data communication is signified in bps. Bits per second (bps) is the rate of transfer of information bits. Baud is the num
Binary number system is most common for computer due to two stable states of its components. However unfortunately this isn't a very natural system for us as we deal with decimal n
It is possible to enter one or more criteria in the rows which can influence your database significantly. >="Callahan" this returns all the several records from Callahan to the
Incidence Matrix: - This is the incidence matrix for an undirected group. For directed graphs, the vertex from where an edge is originating will have +1 and the vertex where the ed
Processor-Memory Interconnection Network (PMIN) This is a switch that joined various processors to different memory modules. Connecting every processor to each memory module in
A Scanner is a device which allows you to capture photographs or drawings or text from tangible sources (paper or slides etc.) in electronic form. Scanners work by detecting differ
Q. What is Gate? Explain Basic gates with truth table and necessary circuits. Q. Which gates are called Universal Gates? Why? Q. Give the Dual of the rule 17. Q. Realize
1's complement representation of decimal number of -17 by using 8 bit representation is ? Ans. (17) 10 = (10001) 2 In 8 bit = 00010001 1's Complement = 11101110
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