If integer needs two bytes of storage, then maximum value of an unsigned integer is
A. 216 – 1
B. 215 – 1
C. 216
D. 215
E. None of these
Answer: Option A
Solution(By Examveda Team)
An integer is a number with no fractional part; it can be positive, negative or zero. In ordinary usage, one uses a minus sign to designate a negative integer. However, a computer can only store information in bits, which can only have the values zero or one. We might expect, therefore, that the storage of negative integers in a computer might require some special technique. As you might imagine, an unsigned integer is either positive or zero. Consider a single digit decimal number: In a single decimal digit, you can write a number between 0 and 9. In two decimal digits, you can write a number between 0 and 99, and so on. Since nine is equivalent to 101 - 1, 99 is equivalent to 102 - 1, etc. In n decimal digits, you can write a number between 0 and 10n - 1. So, analogously, in the binary number system, An unsigned integer containing n bits can have a value between 0 and 2n - 1 (which is 2n different values).Join The Discussion
Comments ( 4 )
Related Questions on C Fundamentals
What is the primary purpose of a function prototype in C?
A. Declare a variable
B. Declare a function
C. Define a function
D. Assign a value
What is the correct syntax for declaring a variable in C?
A. int variable_name;
B. variable_name = 5;
C. variable_name int;
D. int = variable_name;
How???
PLS EXPLAIN THIS
PLS EXPLAIN THIS
please explain the answer of this question
i dont understand