under the topic in computer science, Data representation Flashcards
What is data representation in computer science?
Data representation refers to the way data is stored, processed, and transmitted in a computer system.
True or False: Binary is the only number system used in computer data representation.
False
What are the two primary types of data representation?
Analog and digital.
Fill in the blank: A ________ is a sequence of bits that represents information.
byte
What is the base of the binary number system?
2
Which data type can represent true or false values?
Boolean
What is ASCII?
ASCII stands for American Standard Code for Information Interchange, a character encoding standard for electronic communication.
What does the term ‘bit depth’ refer to?
Bit depth refers to the number of bits used to represent the color of a single pixel in an image.
Which number system uses the digits 0-9 and the letters A-F?
Hexadecimal
True or False: Data compression reduces the size of data for storage or transmission.
True
What is a character encoding scheme?
A character encoding scheme is a method of converting characters into a format that can be stored and processed by computers.
What does the term ‘endianness’ refer to?
Endianness refers to the order of bytes in computer memory.
Fill in the blank: In data representation, ________ refers to the smallest unit of data.
bit
What is the purpose of data serialization?
Data serialization is the process of converting data into a format that can be easily stored or transmitted.
What is Unicode?
Unicode is a character encoding standard that aims to support all the world’s writing systems.
Multiple choice: Which of the following is NOT a data type? A) Integer B) String C) Function D) Array
C) Function
What is floating-point representation used for?
Floating-point representation is used to represent real numbers that require fractional components.
True or False: Data representation can affect the performance of a computer system.
True
What is a pixel?
A pixel is the smallest unit of a digital image or display that can be displayed or processed.
Fill in the blank: The ________ number system is used in digital electronics and computing.
binary
What is the significance of the ‘byte’ in data representation?
A byte is typically composed of 8 bits and is the standard unit of data used to represent a character.
What is data encoding?
Data encoding is the process of converting data into a specific format for efficient transmission or storage.
Multiple choice: Which data representation method is most suitable for audio files? A) Text B) Binary C) Hexadecimal D) Decimal
B) Binary
What does the term ‘data integrity’ refer to?
Data integrity refers to the accuracy and consistency of data over its entire lifecycle.
