Answer:
system unit
Explanation:
A system unit is the part of a computer that contains the brain or central processing unit. The primary device such as central processing unit as contained in the system unit perform operations hence produces result for complex calculations.
The system unit also house other main components of a computer system like hard drive , CPU, motherboard and RAM. The major work that a computer is required to do or performed is carried out by the system unit. Other peripheral devices are the keyboard, monitor and mouse.
Answer:
(a) What is the best case time complexity of the algorithm (assuming n > 1)?
Answer: O(1)
(b) What is the worst case time complexity of the algorithm?
Answer: O(n^4)
Explanation:
(a) In the best case, the if condition will be true, the program will only run once and return so complexity of the algorithm is O(1)
.
(b) In the worst case, the program will run n^4 times so complexity of the algorithm is O(n^4).
Answer:
The code is given as below: The input and output is as given for one case.
Explanation:
echo -e "Enter A, B or C : \c" #Printing the line on the screen
read -rN 1 test #read the character in the variable test
echo
case $test in #Setting up the case structure for variable test
[[:lower:]] ) #checking all lower case letters
echo You did not enter A, B or C;;
[D-Z] ) #checking upper case letters from D to Z
echo You did not enter A, B or C;;
A ) #Condition to check A
echo You entered A;;
B ) #Condition to check B
echo You entered B;;
C ) #Condition to check C
echo You entered C;;
esac #Exiting the case structure
