Astruct can contain members with varying data types.
true
false

True

Explanation:  

 Yes, the given statement are true that a struct contain various member with varying data type and the structure variable act as argument in the function.

The function cannot modified the member in the structure variable.

And the structure variable create different data types which can be used to group the given data. As, it is basically used to store the different types of data.

that without the operating systems you would have to control and synchronize computer hardware.