Unit 4
2. If the binary number 1000 0101 0011 represents a binary coded decimal integer, its value in denary is: -7 11/16 2131 853 4123
3. If the binary number 1000 0101 0011 represents a two's complement floating point number with an eight bit mantissa followed by a four bit exponent, its value in denary is: -7 11/16 2131 853 4123
4. Express the denary number 35 in hexadecimal: 1D 43 35 23
5. Express the hexadecimal number FF in denary: 255 377 15 7373
6. When a number is too near zero for the exponent to be expressed it is an example of: overflow a positive exponent underflow a normalised number
7. The positive binary number 1010 1111 translated into hexadecimal is: AE AF BE BF
8. The number 5.75 translated into a normalised floating point number, with a 10-bit mantissa and 6-bit exponent is: 0101110000 000011 0110110000 000011 0101110000 000001 0000010111 000100
9. The number -19 translated into an 8-bit two's complement binary integer is: 1001 0011 1110 1101 0001 0011 1110 1100
10. Express the denary number 27 in binary coded decimal: 0010 0111 0111 0010 0001 1011 1011 0001