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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.
What is virtual memory? Method that automatically move program and datablocks into the physical main memory when they are needed for execution are known as virtual memory.
Existential Introduction: Now if we have any sentence as, A, and variable, v, that does not occur in A, so then for any ground term, g, such occurs in A, than we can turn A in
Creating a contacts application: First, a contact is defined as the tuple: firstName, lastName, phoneNumber and email. You will create a class Contact that allows getting a
Q. Describe the Errors? Errors Two probabletypes of errors may take place in assembly programs: a. Programming errors: They are familiar errors you may encounter in
Minimise the logic function F (A, B, C, D) = Π M (1, 2, 3, 8, 9, 10, 11,14) ⋅ d (7, 15) Use Karnaugh map. Ans. Given function F=∏M(1,2,3,8,9,10,11,14).d(7, 15) F'=B'D+B'C+AC+AB'
What are the primary models of Supply Chain Management? Two Primary models of Supply Chain Management are illustrated below: a. Porter’s Value Chain Model and b. Supply
How is a property designated as read-only? In VB.NET: Public Read-Only Property Property Name As Return Type Get? Your Property execution goes in here End Get End Property.
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 i
When investing money, an important concept to know is compound interest. The equation FV = PV (1+rate)periods . This relates the following four quantities. The present value (PV)
An ActiveX control has four types of properties: 1. Stock:-> These are standard properties supplied to each control, such as font / color. The developer must activate stock pro
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