Answer:
Trap is a software interrupt that occurs when there is a system call, while hardware interrupt occurs when a hardware component needs urgent attention.
Explanation:
Interrupt is an input signal that disrupt the activities of a computer system, giving immediate attention to a hardware or software request.
In trap interrupt, the system activities are stop for a routine kernel mode operation, since it has a higher priority than the user mode. At the end of the interrupt, it switches control to the user mode.
The hardware interrupt is a signal from hardware devices like the input/output devices, storage and even peripheral devices that draws an immediate attention of the processor, stopping and saving other activities and executing the event with an interrupt handler.
Answer:
The term "savanna" is often used to refer to open grassland with some tree cover, while "grassland" refers to a grassy ecosystem with little or no tree cover.
Explanation:
Answer:
\n
Explanation:
readline() method is used to read one line from a file. It returns that line from the file.
This line from the file is returned as a string. This string contains a \n at the end which is called a new line character.
So the readline method reads text until an end of line symbol is encountered, and this end of line character is represented by \n.
For example if the file "abc.txt" contains the lines:
Welcome to abc file.
This file is for demonstrating how read line works.
Consider the following code:
f = open("abc.txt", "r") #opens the file in read mode
print(f.readline()) # read one line from file and displays it
The output is:
Welcome to abc file.
The readline() method reads one line and the print method displays that line.
Answer:
D. Collective intelligence
Explanation:
Collective intelligence appears when people work together. It is derived from the collaboration, collective actions, and competition of many parties.
In Emily's job, she collaborate with partners, compare competitors and tap into the knowledge of prospective employees, partners, and customers. Thus, she performs collective intelligence.
Answer:
The replacement of traditional mainframe and minicomputers is a prime example of technological paradigm shift.
Explanation:
As the change of traditional mainframe and minicomputers to personal computers is due to the technological advancements, which led to creation of client server networks. This paradigm shift is the technological shift as the main reason for the shift is due to the technical advancement and enhancement.
