A character or collection of characters with a specific meaning is called a field.
<h3>What does the technical term "field" mean?</h3>
A field is a purpose-driven, typically fixed-sized section in a fixed or known location within a unit of data, such as a record, message header, or computer instruction. A field may be divided into smaller fields depending on the situation.
<h3>What does a file structure field mean?</h3>
A record is an entire set of fields, a field is a single piece of information, and a file is a collection of records. An analogy between a file and a phone book is a phone book. There is a list of records in it, and each record has three fields: a name, an address, and a phone number.
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Answer:
ink jet
Explanation:
Great at producing photo quality prints and image-heavy documents, as inkjet printers do a better job of blending and producing vibrant colors than laser printers. The price of an inkjet printer is less than most laser printers.
Answer:
new_segment = [ ]
for segment in segments:
new_segment.append({'name': segment, 'average_spend': money})
print( new_segment)
Using list comprehension:
new_segment =[{'name': segment, 'average_spend': money} for segment in segments]
Using map():
def listing(a):
contain = {'name': segment, 'average_spend': money}
return contain
new_segment = [ ]
new_segment.append(map( listing, segment))
print(list(new_segment)
Explanation:
The python codes above create a list of dictionaries in all instances using for loop, for loop in list comprehension and the map function which collect two arguments .
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:
Server
Explanation:
- it is an electronic device
- under control of another computer or human
- stored instructions as code
- accepts data from external source
- process the data it gets, for example filtering the data or modifying it
- produces information, for example AI created suggestions
- Stores Information on storage drives
