Intro 2 IT - Session 3

What does a bit represent?

• A decimal digit
• A binary digit
• A hexadecimal digit
• A character

What is the purpose of a Boolean operation?

• To manipulate true/false values
• To calculate decimal numbers
• To manage memory
• To execute machine instructions

Which of the following is a Boolean operation?

• ADD
• OR
• SHIFT
• MULTIPLY

What does a flip-flop circuit do?

• Stores one bit
• Performs an AND operation
• Adds two numbers
• Shifts bits

In a memory cell, the most significant bit is located where?

• Right
• Middle
• Left
• It varies

What is Random Access Memory (RAM)?

• Memory that can only be accessed sequentially
• Memory that is non-volatile
• Memory that can be accessed in any order
• Memory that does not lose data when powered off

How many bits are used in ASCII to represent a character?

• 7 bits
• 8 bits
• 16 bits
• 32 bits

What is the binary representation for the decimal number 27?

• 11101
• 11001
• 10110
• 11011

In two's complement, how do you represent a negative number?

• Invert the bits
• Invert the bits and add 1
• Shift the bits
• Multiply by -1

What is the exponent bias in IEEE-754 32-bit floating-point numbers?

• 64
• 127
• 128
• 1023