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How semaphores implement mutual exclusion?
Mutual-exclusion implementation along with semaphores:
Assume that there are n-processes and they share a semaphore, mutex (standing for mutual exclusion), initialized to 1. All processes Pi is organized as illustrated below:
do{
wait(mutex);
critical section
signal(mutex);
remainder section }while(1);
Which of following requires refreshing SRAM., DRAM., ROM. or EPROM. ? Ans. DRAM. requires refreshing.
Ask questDesign a logic circuit with 4 inputs A, B, C & D that will produce output ‘1’ only whenever two adjacent input variables are 1’s. A & D are also to be treated as adjacent,
Define interrupt. An interrupt is any exceptional event that causes a CPUU to temporarily transfer control from its present program to another program , an interrupt handler th
Internal Organization of memory chip: Word line & bit lines 16x8 organization : 16 words of 8 bits per Form of an array
How can i made Carnot engine
define the properties of interactive operating systems
What is slack? 'Slack' is the amount of time you have which is measured through while an event ‘really happens' and while it ‘should happen’. The term ‘really happens' can a
In a clinic 0.15 of the patients have got the HIV virus. Assume a blood test is carried out on a patient. If the patient has got the virus the test will turn out positive with prob
Computer to computer communication is: (A) Simplex (B) Duplex (C) Half Duplex (D) Both Duplex and Half D
Problem: (a) Consider the following combinational circuit: (i) Calculate the propagation delay for each output. Assume each gate has a delay of 10 ns. (ii) The abo
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