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Disadvantage and Advantage of mutual-exclusion implementation with semaphores.
Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting.
That is, even as a process is in its critical section, any other process which tries to enter its critical section should loop continuously in the entry code. Therefore, busy waiting wastes CPU cycles that several other process might capable to use productively.
Advantage: This kind of semaphore is also termed as spinlock as the process "spins" while waiting for lock. Spinlocks are helpful in multiprocessor systems as no context switch is needed when a process should wait on a lock. Therefore, when locks are expected to be held for short times, spinlocks are helpful.
What is MMU? MMU is the Memory Management Unit. It is a special memory control circuit used for executing the mapping of the virtual address space onto the physical memory.
Advantages of Object oriented analysis design The OO approach inherently makes every object a standalone component which can be reused within specific stat problem domains we
The verification method states how Robot compares the baseline data captured while recording with the data captured during playback.
A 6-bit Dual Slope A/D converter uses a reference of -6V and a 1 MHz clock. It uses a fixed count of 40 (101000). Find Maximum Conversion Time. Ans. The time T 1 specifie
A interrupt that can be turned off by the programmer is called as Maskable interrupt.
When a switch capacity is full, calls coming into that switch are said to be . (A) open (B) shorted (C) bloc
What are the Counters? 1. The Counter is a sequential circuit which consists of a set of flip flops connected in a appropriate manner to count the sequence of input pulses.
what is Ambiguity in single inheritance
Currently microcontrollers are embedded within most products, typical uses are in Camera's for auto focus and display drivers, Laser printers to compute fonts and control printing.
Design a 32:1 multiplexer using two 16:1 multiplexers and a 2:1 multiplexer Ans. Design a 32 X 1 MUX by using two 16 X 1 MUX and one 2 X 1. Now here total 32 input lines
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