Binary Representation in Computers (AQA GCSE Computer Science): Flashcards
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14 cards from this deck
What is binary representation?
What is binary representation?
How computers store/process all info using only 1s and 0s
How many symbols are used in binary?
How many symbols are used in binary?
2 symbols (0 and 1)
What analogy helps explain binary ON/OFF states?
What analogy helps explain binary ON/OFF states?
Light switches (ON=1, OFF=0)
Why do computers use binary?
Why do computers use binary?
Circuits detect electricity flowing (ON=1) or not (OFF=0)
What does 1 represent in binary?
What does 1 represent in binary?
ON (electricity flowing)
What does 0 represent in binary?
What does 0 represent in binary?
OFF (no electricity flowing)
How many symbols in decimal (base 10)?
How many symbols in decimal (base 10)?
10 symbols (0-9)
How many symbols in hexadecimal (base 16)?
How many symbols in hexadecimal (base 16)?
16 symbols (0-9, A-F)
Convert decimal 10 to binary
Convert decimal 10 to binary
1010
Can the same binary represent different data types?
Can the same binary represent different data types?
Yes, depends on how computer interprets it
What determines how binary data is interpreted?
What determines how binary data is interpreted?
File types and data formats
Why do programmers use hexadecimal?
Why do programmers use hexadecimal?
Shorter than binary, easy to convert, reduces errors
How many binary digits per hex digit?
How many binary digits per hex digit?
4 binary digits
Convert binary 11011100 to hexadecimal
Convert binary 11011100 to hexadecimal
DC