In side the Hard drive there is a <span> large shiny, circular "plate" of magnetic material called a </span>platter<span>, divided into billions of tiny areas called clusters. This Plate haves a pin over it that reads all the information that is on it. When this plate or pins damage thats when the hard drive need to be replace. </span>
it is called an attribute
The anwser is true. It is special type
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
