18 Questions
How many bytes of memory would be needed to store the first message if we followed the original method of storing each character individually?
62 bytes
If we store the words and their positions in a lookup table as described, how many bytes are used to store just the positions for the first message?
13 bytes
By storing the words and their positions in a lookup table, what percentage of storage requirements did we save for the first message?
26%
In total, how many bytes were needed to store the words and positions for the first message using the lookup table method?
46 bytes
What is an advantage of storing data using a lookup table as shown in the text?
Saves storage space
How does the amount of compression achievable vary for data storage?
Depends on the data being stored
How many possible characters can be represented using ASCII system?
256
How many bits are used to represent a character in the Unicode system?
16
How many bits does a character take up in storage space in the Unicode system?
2 bits
Which system is more suitable for languages with a larger character set other than Standard English?
Unicode system
What is the binary representation of the letter A in ASCII?
01000001
In ASCII, how many bytes does a character occupy in terms of storage?
1 byte
What is the binary representation for the letter 'u' in ASCII system?
01110101
In the ASCII system, what is the binary representation for the letter 'm'?
01001101
Which term is used to describe converting analogue data into digital data for computer processing?
Digitization
What do 1 and 0 represent in a binary representation of a black and white image?
Black and White pixels
In a binary code, what does each pixel represent?
A tiny dot on the screen
What term is used to describe the data that provides information about the dimensions of an image grid?
Pixel metadata
Test your knowledge on binary code and image representation in computers. Learn about the efficiency of representing characters and images in binary compared to regular characters. Explore systems and software developed to store various types of data on computers.
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