Ch. 3 Data Reprensentation Pgs. 54-76 Flashcards
What is the primary purpose of data representation in computing?
To convert information into a format that a computer can process.
True or False: Numeric representation only refers to integers.
False
Which of the following is a common numeric representation format?
Binary
Fill in the blank: In decimal representation, the base is _____.
10
What does ASCII stand for?
American Standard Code for Information Interchange
True or False: Text representation can only be done in ASCII format.
False
Which representation uses 0s and 1s to represent data?
Binary representation
What is a bit?
The smallest unit of data in a computer, representing a binary value of 0 or 1.
What does the term ‘byte’ refer to?
A group of 8 bits.
In hexadecimal representation, which digits are used?
0-9 and A-F
True or False: Unicode can represent characters from multiple languages.
True
What is the main advantage of using binary over decimal in computing?
It is easier for computers to process.
Fill in the blank: The binary number 1010 is equal to ____ in decimal.
10
Which format is commonly used for text files?
UTF-8
What is the purpose of data encoding?
To convert data into a specific format for efficient storage or transmission.
True or False: Floating-point representation is used for real numbers.
True
What is a common use of hexadecimal representation?
To simplify binary coding in programming.
Which of the following is NOT a type of data representation?
Analog representation
Fill in the blank: The binary number 1111 is equal to ____ in decimal.
15
What is the range of values for an 8-bit unsigned integer?
0 to 255
True or False: Each character in UTF-16 can take up to 4 bytes.
True
What does the term ‘data compression’ refer to?
The process of reducing the size of a data file.
Which of the following is an example of a text representation format?
XML
Fill in the blank: The decimal number 255 in binary is ____.
11111111
