Answer:
Each pixel in an image is made up of binary numbers. If we say that 1 is black (or on) and 0 is white (or off), then a simple black and white picture can be created using binary. To create the picture, a grid can be set out and the squares coloured (1 – black and 0 – white).
1) A
2)D
3)C
4)A
5)D
Hope this will help u
Answer:
Repair damage done to original systems
Explanation:
It is imperative that businesses brace up for moments or period of challenges whereby normal operation is impeded due to disruption in standard system condition. The ability of businesses to thrive and continue to deliver in these circumstances is catered for by the business continuity plan. The recovery team ensures that important processes critical to the business are restored in other to ensure that business operation isn't crippled. Once normalcy ahs been restored, the team ensures recoverabke day in the original system are taken care of. The repair of damage done is not a goal of the recovery ohase in the business continuity plan as repairsvare catered for after recovery event has been finalized.
Answer:
Explanation:
Following are the Semaphores:
Customers: Counts waiting customers;
Barbers: Number of idle barbers (0 or 1)
mutex: Used for mutual exclusion.
Cutting: Ensures that the barber won’t cut another customer’s hair before the previous customer leaves
Shared data variable:
count_cust: Counts waiting customers. ------------copy of customers. As value of semaphores can’t access directly.
// shared data
semaphore customers = 0; semaphore barbers = 0; semaphore cutting = 0; semaphore mutex = 1;
int count_cust= 0;
void barber() {
while(true) { //shop is always open
wait(customers); //sleep when there are no waiting customers
wait(mutex); //mutex for accessing customers1
count_cust= count_cust-1; //customer left
signal(barbers);
signal(mutex);
cut_hair();
}
}
void customer() {
wait(mutex); //mutex for accessing count_cust
if (count_cust< n) {
count_cust= count_cust+1; //new customer
signal(customers); signal(mutex);
wait(barbers); //wait for available barbers get_haircut();
}
else { //do nothing (leave) when all chairs are used. signal(mutex);
}
}
cut_hair(){ waiting(cutting);
}
get_haircut(){
get hair cut for some time; signal(cutting);
}
