chapter 3 76

The decimal number -127₍₁₀₎ corresponds to which of the following signed, 8-bit binary numbers (2's complement):

• Cannot be represented

• 1000 0001₍₂₎

• 1000000₍₂₎

• 1111 1111₍₂₎

In the hexadecimal numbering system, the number 5CD7₍₁₆₎ corresponds to which of the following decimal values:

• 23511₍₁₀₎

• 23767₍₁₀₎

• 23719₍₁₀₎

• 23725₍₁₀₎

Binary number 1100 1011 1101₍₂₎ corresponds to which of the following hexadecimal values:

• DBC₍₁₆₎

• CDB₍₁₆₎

• CBD₍₁₆₎

• BDC₍₁₆₎

The sum of two 8-bit unsigned binary numbers 0101 0101₍₂₎ and 0110 1001₍₂₎ is:

• 1011 1010₍₂₎

• 1010 1000₍₂₎

• 1011 1110₍₂₎

• 1001 1000₍₂₎

In 80-bit floating-point representation, how many bits are allocated for the exponent?

• 14 bit

• 13 bit

• 16 bit

• 15 bit

According to IEEE 754/1985, the extended double-precision floating-point format has a total length

• 80 bit

• 64 bit

• 32 bit

• 16 bit

`The extended ASCII code contains how many characters?

• 256

• 512

• 1024

• 128

In computer data transmission systems, based on function, buses are divided into:

• Data bus, address bus, multifunctional bus

• Parallel bus, serial bus, semi-serial bus

• CPU internal bus, main memory bus, I/O bus

• Data bus, address bus, control bus

What is the decimal equivalent of the binary number 1101 0011 1101₍₂₎?

• 3397₍₁₀₎

• 3395₍₁₀₎

• 3389₍₁₀₎

• 3373₍₁₀₎

The binary number 11001.101₍₂₎ is equal to which of the following decimal values?

• 25.375

• 25.625

• 25.750

• 25.875