Answer:
an electronic machine that can store, find and
Answer:
The different variable in C is 21213316700.
Explanation:
Given value:
Total value = letters + underscore value
Total value = 52 + 1
Total value =53
choice for first character = 53 letters +10 digits
first character = 63
choice for remaining characters
So,
Variable number With one 1 character = 53
Variable number With 2 character = 53 × 63
Variable number With 3 character = 53 × 63²
Variable number With 4 character = 53 × 63³
.
.
.
Variable number With 7 character = 
Total difference variable = 53 + 53 × 63+ 53 × 63²+ 53 × 63³+....+ 
Total difference variable = 53(1 + 63 + 63²+ 63³+ .... +
)
Formula:

Total difference variable

Answer:
Answer C
Explanation:
Static NAT creates a fixed translation of private addresses to public addresses. The main difference between dynamic NAT and static NAT is that static NAT allows a remote host to initiate a connection to a translated host if an access list exists that allows it, while dynamic NAT does not.
Another name for hard disk is called; Hard Drive
The external hard disk is called; External Hard drive
<h3>Computer storage devices</h3>
In computers there are different ways of storing information and all could come under the name drives but the primary storage of a computer which is called hard disk is also called hard drive.
Now, the hard drive could be internal or external and so the one to store additional information is called External Hard Drive.
Read more about Computer Storage Devices at; brainly.com/question/19667078