Answer:
UTILITY PROGRAM
Explanation:
Utility program are program that perform routine processing function such as sorting and merging. They are often used by auditors to performs a very specific task, usually related to managing system resources. It contain a number of utilities for managing disk drives, printers, and other devices.
Utility program also performs specific task related to the management of computer functions, resources, password protection, memory management, virus protection, and file compression.
Answer:








Explanation:
Solving (a): To base 10

We simply multiply each digit by a base of 16 to the power of their position.
i.e.


In hexadecimal

So:



This gives:


In hexadecimal

So:


Solving (b): To base 10

We simply multiply each digit by a base of 2 to the power of their position.
i.e.





Solving (c): To base 16

First, convert to base 10
In (b)

Next, is to divide 781754 by 16 and keep track of the remainder





Write out the remainder from bottom to top

In hexadecimal


So:


In b

Next, is to divide 11057389 by 16 and keep track of the remainder






Write out the remainder from bottom to top

In hexadecimal


So:

Solving (d): To octal

Divide 74510 by 8 and keep track of the remainder






Write out the remainder from bottom to top


Divide 67210 by 8 and keep track of the remainder






Write out the remainder from bottom to top

Answer:
Explanation:
An operating system is the most important software that runs on a computer. ... It also allows you to communicate with the computer without knowing how to speak the computer's language. Without an operating system, a computer is useless.
Answer:
vacuum tube
Explanation:
Vacuum tube is used in the first generation.