Ten conversions and calculations with the working shown: a byte into denary and into hex, seventy-six into eight bits, a left shift that doubles a value…
10 questions • Zestly
• A student is asked to convert the binary number 10110101 into denary. What is the correct denary value?
• A computer system requires the denary number 76 to be stored in an eight-bit register. Which binary sequence represents this number?
• A programmer needs to convert the binary byte 10110101 into hexadecimal. What is the correct hexadecimal representation?
• Why is hexadecimal notation often used by programmers instead of binary when representing data?
• The byte 00001101 is shifted one place to the left. What is the resulting byte and what happens to its value?
• An eight-bit register currently holds the value 11111111. If the value 1 is added to this register, what occurs?
• In one character set the code for capital A is 65 and the code for lower-case a is 97. A student says this proves the computer remembers…
• An image is 20 pixels wide by 30 pixels high and uses 3 bits per pixel. What is the total file size in bytes?
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