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How is a valid user identifier accomplished?
A valid user identifier is accomplished within one or more of given ways:
• Provide some password, which only user knows.
• Present something like a smart card or a token which only the user has
• Identify something only the user is, like signature, voice, fingerprint or retinal (eye) scan. It is implemented by biometric controls.
'On many systems, you can describe a function matherr which will be known as when there are certain floating-point errors, like errors in the math routines in .
What is port? What are the types of port available? An I/O interface having of circuitry needed to connect an I/O device to computer bus. One side consists of a data path with
What is the need of interrupt controller? The interrupt controller is employed to expand the interrupt inputs. It can handle the interrupt requests from several devices and pe
a) In multitasking Operating Systems, there are two types of multitasking such as the "Preemptive Multitasking" and the "Cooperative Multitasking". Describe the two mentioned mult
The Signalling connection control part (SCCP) and message transfer part (MTP) together are referred to as (A) Signal Switching Points (SSPs) (B) Signal Transfer Points
What is generalization? Generalization is a relationship among a class (super class) and one or more variations of the class (sub classes).It arrange classes by similarities an
IA-64 instead depends on the compiler for this task. Even before the program is fed into the CPU, the compiler studies the code and makes the similar sorts of decisions that would
Define Refresh Circuits? It is a circuit which make sure that the contents of a DRAM are maintained when every row of cells are accessed periodically.
The structure of Logical Databases reflects which dependencies of hierarchical tables in the SAP system. Foreign Key dependencies
Explain briefly, why dynamic RAMs require refreshing? Ans: Due to the charge's natural tendency to distribute itself in a lower energy-state configuration that is, the charg
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