Answer: Memory hierarchy is the hierarchy that is created on the basis of the response time of different memories. The performance obtained by the memory helps in creating a computer storage space in distinguished form. The factors considered for the creating of the hierarchy structure are usually response time, storage capacity, complexity etc.
Usage of different kind of memories take place due to different kind of requirements from the system which cannot be fulfilled using one memory device.The requirement is based on saving time, decreasing complexity , improving performance etc.Example of requirements can be like some functions and files do not require much space , some might require quick accessing,etc.
Thus hierarchy of any particular system is in the form of fast to slow order from registers,cache memory, Random access memory(RAM) and secondary memory.
Answer:
The definition of function is as follows:
def typing_speed(number_of_words,Time_Interval):
number_of_words>=0
Time_Interval>0
speed=float(60*number_of_words/Time_Interval)
return speed
Explanation:
Above function is defined step-by-step as follows:
def typing_speed(number_of_words,Time_Interval):
- A function named typing speed has two arguments, num_of_words and Time_Interval.
number_of_words>=0
Time_Interval>0
- The variable number_of_words is the number of words entered that a person enters, they must be greater than or equal to 0. Where as Time_Interval is the variable for counting the time span in seconds, it must be greater than 0.
speed=float(60*number_of_words/Time_Interval)
return speed
- For determining result firstly the seconds are converted int minutes by multiplying with 60 and number_of_words is divided with Time_Interval in order to get words per minute. The return value will give speed which has data type float.
Answer:
Explanation:
Given
Required
The result when 
and 
Analyzing the given instruction
a*=(++a)/(6)+(b++3)
Single out and solve the expressions in bracket
(++a) = a -- When the ++ operator appears before an operand, it is called pre increment. meaning that the operation will be done before the operand will be incremented.
So: in this case: ++a = a
The operator, as used in that statement is the same as: b + 3.
So:
The above expression is calculated as:
So:
Since Greg wants to become an advertising and promotions manager, he needs to at least gain a (B) bachelor’s degree level of education, since generally, this educational background is expected from individuals who wishes to work in an entry-level position in the field of advertising.
One of the skills that he also needs to develop is (C) communication skills, because he would have to be able to communicate in both written and spoken to develop the advertisements according to the client’s desires.
