Answer:
Instruct the operating system to eject the drive before unplugging it.
Explanation:
You can measure it by the amount of automatisation. The bigger technological process the easier it is to automate systems.
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);
}
Answer: See explanation
Explanation:
You didn't give the options to the question and I searched and couldn't find the particular question.
Here, are some of the things about technology before the invention of the printing press.
1. Before printing press, monks copied books such as bibles as they'll copy calligraphy and illustrations in order for them to spread the messages in the Bible across to people.
2. Before printing press, oral communication was the way that people communicated with each other.
3. Drawings and writings were done by hand before printing press.
4. Before the invention of printing press, in order to transcribe books, different materials that were used include wax, parchment, clay and papyrus.
Answer:
C
Explanation:
All the calculation by computer is performed in base 2. Base 2 is also named as binary computation and it is used in all the computer and digital data processing processors.
Some differences between base 2 and base 10 are:
- Base 2 number system contains 0 and 1 whereas base 10 is from 0 to 9.
- Digital systems works on 0 and 1 logic i.e on and off logic. So we use digital system easily in binary domain whereas, decimal system has 0-9 levels and they are hard to be catered in digital domain.
- Base 10 is used in normal calculations for daily use and binary is only confined to digital domain.
