Quantum Computing – The Next Tech Revolution Technology has evolved rapidly over the last few decades—from bulky mainframe computers to powerful smartphones in our pockets. Yet, despite these advances, traditional computers are approaching their physical limits. This is where quantum computing enters the scene, promising to revolutionize the way we process information and solve complex problems. What Is Quantum Computing? Quantum computing is a new paradigm of computing that uses the principles of quantum mechanics, a branch of physics that explains how matter and energy behave at the smallest scales. Unlike classical computers, which use bits that represent either 0 or 1, quantum computers use qubits. Qubits can exist in multiple states simultaneously, thanks to a property called superposition. Additionally, qubits can be interconnected through entanglement, allowing them to share information instantaneously. These unique properties give quantum computers immense computational power....
BASIC DATA TYPES
Data type defines the group of values that a data item can take and the operations that can be performed on the item. C language provides four basic data types. Below table lists the data types, their size, range, and usage for a C programmer.
The char data type is of one byte and is used to store single characters. Note that C does not give any data type for storing text. This is because text is made up of individual characters.You might have been surprised to see that the range of char is given as –128 to 127. char is used to store characters not numbers, so why this range? The answer is that in the memory, characters are stored in the form of ASCII codes. For example, the character ‘A’ has the ASCII code of value 65. In memory we will not store ‘A’ but stored as 65 (in binary number format).
Table: Basic data types in c
In addition, C also supports four modifiers two sign specifiers (signed andunsigned) and two size specifiers (short and long). Table below shows the variants of basic data types.
Table: Basic data types and their variants
While the smaller data types take less memory, the larger data types incur a performance penalty. Although the data type we use for our variables does not have a big impact on the speed or memory usage of the application, we should always try to use int unless there is a need to use
any other data type.