Question 11 mark
What is the unsigned binary number 0110 1011 in denary?
1.4.1(b), 1.4.1(e), 1.4.1(f) · Data representation
Unsigned binary, hexadecimal and denary
Question 21 mark
What is the unsigned binary number 1100 1001 in denary?
Question 31 mark
What is the unsigned binary number 1001 1110 in denary?
Question 41 mark
What is the unsigned binary number 0011 1010 in denary?
Question 51 mark
What is 46 in hexadecimal?
Question 61 mark
What is 173 in hexadecimal?
Question 71 mark
What is 250 in hexadecimal?
Question 81 mark
Why do programmers often write binary values in hexadecimal?
Question 91 mark
What is the smallest number of bits that can store every whole number from 0 to 300?
Structured question 18 marks
Colour channels
A graphics program stores each colour channel as one unsigned byte.
(a) State1 mark
the largest value one channel can hold.
(b) Convert2 marks
the denary value 200 to 8-bit binary.
(c) Convert1 mark
the denary value 200 to hexadecimal.
(d) Convert2 marks
the hexadecimal value 3E to 8-bit binary.
(e) Explain2 marks
why a hex editor shows a file's bytes in hexadecimal rather than binary.
0 words
Question 101 mark
What is the hexadecimal number 7B in denary?
Question 111 mark
What is the hexadecimal number E4 in denary?
Question 121 mark
What is the hexadecimal number 2A9 in denary?