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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.
What is NEG instruction Arithmetic sign inversion or two's complement (NEG). NEG instruction two's complements a number which means that arithmetic sign of a signed number cha
Why Java is called Machine Independent? While a java program is compiled this is not converted in an executable code. Rather, this is converted in a byte code. Byte code is hig
Q. Explain about Indirect Addressing? In this technique the operand field of instruction specifies the address of address of intended operand for example if instruction LOAD
An important terminal that is required between DTE and PSTN is (A) Server (B) MODEM (C) Relay
How can a function return a pointer to its calling routine? The general form of a function is: type_specifier function_name(parameter list) { body of function; }
A student counted up the number of statements implemented in a program developed for sorting n integers and came up with a recurrence of the form: T(n) = a * n + b + 2T(n/2), an
Explain a binary semaphore with the help of an example? An abstract data type (ADT) is a semaphore which defines a nonnegative integer variable that apart from initialization i
Program 'preemption' is? Ans. Forced de allocation of the CPU from a program that is executing on the CPU is called preemption program.
CONTROL SECTION: The control section directs the flow of traffic (operations) and data. Also it maintains order within the computer. The control section chooses one program sta
Discuss about the Electronic computer The first general function programmable electronic computer was the Electronic Numerical Integrator and Computer (ENIAC), built by John V
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