Answer:
a) Speedup gain is 1.428 times.
b) Speedup gain is 1.81 times.
Explanation:
in order to calculate the speedup again of an application that has a 60 percent parallel component using Anklahls Law is speedup which state that:

Where S is the portion of the application that must be performed serially, and N is the number of processing cores.
(a) For N = 2 processing cores, and a 60%, then S = 40% or 0.4
Thus, the speedup is:

Speedup gain is 1.428 times.
(b) For N = 4 processing cores and a 60%, then S = 40% or 0.4
Thus, the speedup is:

Speedup gain is 1.81 times.
The invention of the micro hard drive is not a driver of wireless growth.
What is Hard Drive (HDD)?
A computer hard drive (also known as a hard disk or HDD) is a type of technology that stores your computer's operating system, applications, and data files such as documents, pictures, and music. The rest of your computer's components work together to display the applications and files stored on ones hard drive.
How does a Hard Drive (HDD) work?
A hard disk drive (HDD) is made up of a platter with data storage compartments. This information includes your operating system, applications, and any files that you have created. There's also an accuator arm that keeps moving across the platter to read or write the data. The platter spins as the accuator arm movements across it to speed up the process.
To learn more about Hard Drive (HDD), visit: brainly.com/question/27269845
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False it is false people also hand draw stuff
It stores data and retrieving digital information using one or more rigid rapidly rotating disks (platters) coated in magnetic material