Data Representation

Front

What is data representation?

Back

Data representation refers to the way data is stored, processed, and transmitted in a computer system. It includes various formats such as binary, decimal, hexadecimal, and character encoding.

Front

What is binary number system?

Back

The binary number system is a base-2 numeral system that uses only two digits, 0 and 1. It is the foundation of all binary code used in computer programming and digital electronics.

Front

Define hexadecimal number system.

Back

The hexadecimal number system is a base-16 numeral system that uses sixteen distinct symbols: 0-9 and A-F. It is often used in computing as a more human-friendly representation of binary-coded values.

Front

What is a byte?

Back

A byte is a unit of digital information that consists of 8 bits. It is the basic addressable element in many computer architectures.

Front

Explain the concept of ASCII.

Back

ASCII (American Standard Code for Information Interchange) is a character encoding standard that uses numerical values to represent characters, allowing computers to communicate text.

Front

What is the purpose of a data type in programming?

Back

Data types define the kind of data a variable can hold, such as integers, floats, characters, or strings, and determine the operations that can be performed on that data.

Front

How is data represented in a computer?

Back

Data in a computer is represented using binary code, where each piece of information is converted into a series of 0s and 1s.

Front

What is a pixel?

Back

A pixel (picture element) is the smallest unit of a digital image or display, representing a single point in the image.

Front

Define the term 'resolution' in the context of digital images.

Back

Resolution refers to the amount of detail an image holds, typically measured in pixels per inch (PPI) or the total number of pixels in width and height.

Front

What is a character encoding?

Back

Character encoding is a system that pairs each character in a given character set with a specific number, allowing computers to store and manipulate text.