Create a class Car, which contains Three data members i. e. carName (of string type), ignition (of bool type), and currentSpeed (of integer type)  A no-argument constructor to initialize all data members with default values
 A parameterized constructor to initialize all data members with user-defined values
 Three setter functions to set values for all data members individually
 Three getter function to get value of all data members individually
 A member function setSpeed( ) // takes integer argument for setting speed
Derive a class named Convertible that contains
 A data member top (of Boolean type)
 A no-argument constructor to assign default value as “false” to top
 A four argument constructor to assign values to all data-members i. e. carName, ignition, currentSpeed and top.
 A setter to set the top data member up
 A function named show() that displays all data member values of invoking object
Write a main() function that instantiates objects of Convertible class and test the functionality of all its member functions.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?