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Error handling in Hard disk in computer architecture:
Modern drives also make widespread use of Error Correcting Codes (ECCs), specifically Reed-Solomon error correction. These techniques store additional bits for each block of data that are resolute by mathematical formulas. The extra bits permit many errors to be fixed. Whereas these additional bits occupy space on the hard drive, they permit higher recording densities to be employed, resulting in much higher storage capacity for user data. In the year 2009, in the newest drives, low-density parity-check codes (LDPC) are supplanting Reed-Solomon. LDPC codes are able performance near to the Shannon Limit and therefore allow for the highest storage density available.
Typical hard drives effort to "remap" the data in a physical sector that will be bad to a spare physical sector-hopefully whilst the number of errors in that bad sector is still little enough that the E CC can fully recover the data without loss.
How many flip flops are required to construct a decade counter ? Ans. 4 FlipFlop's are required because decade counter counts 10 states from 0 to 9 (that is from 0000 to 1001).
What are the different message types available in the ABAP/4 ? There are 5 types of message types available. E: ERROR W-WARNING I -INFORMATION A-ABNORMAL TERMINA
In IP addressing scheme, class used for multicasting is: A class used for multicasting in IP addressing scheme is class D.
Q. Illustrate Domain Name System? Domain name is a name which is given to a network for ease of reference. Domain refers to a group of computers which are known by a single com
Write "heterogeneous" functions If a program uses simulated, dynamically allocated multidimensional arrays, it becomes possible to write "heterogeneous" functions which don't h
a. It improves quality by providing consistent advice and by making reduction in the error rate. b. Expert systems are reliable and they do not overlook relevant info
Define the full form of SSL SSL has become fundamental to the spread of Internet community, and commerce and trade over Internet. Over years, the spread of its use for an incr
why to learn data base?
Q. Era of first generation computers? The trends that were encountered at the time of the era of first generation computers were: Centralized control in a single CPU (al
Yes. It's available on Windows and uses TWAIN, and on GNU/Linux you constant have a choice among XSane and gnome-scan - both can be used as GIMP plug-ins.
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