Unsigned integers (Edexcel GCSE Computer Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the range of values that 8-bit unsigned integers can represent?
What is the range of values that 8-bit unsigned integers can represent?
0 to 255
Why can 8-bit unsigned integers only go up to 255?
Why can 8-bit unsigned integers only go up to 255?
combinations (0 to 255)
What are unsigned integers?
What are unsigned integers?
Whole numbers that are only positive
What are the 8-bit place values in descending order?
What are the 8-bit place values in descending order?
128, 64, 32, 16, 8, 4, 2, 1
When converting decimal to binary, when do you write '1'?
When converting decimal to binary, when do you write '1'?
When number ≥ place value, then subtract
In decimal to binary conversion, if comparing 25 with place value 32, what do you write?
In decimal to binary conversion, if comparing 25 with place value 32, what do you write?
Write '0' and keep 25
What method converts binary to decimal?
What method converts binary to decimal?
Multiply each digit by place value, add
What is the decimal value of binary 1101?
What is the decimal value of binary 1101?
13
Why must you include leading zeros in 8-bit binary numbers?
Why must you include leading zeros in 8-bit binary numbers?
To ensure exactly 8 digits in answer
What is the relationship between 'decimal' and 'denary' numbers?
What is the relationship between 'decimal' and 'denary' numbers?
They mean exactly the same thing