Binary and ASCII

ASCII stands for...

• The American Standard Code for Information Interchange
• The Authentic Style Code for Information Interchange
• The American System Control for Information Interchange
• The Authentic System Coding for Information Interchange

What is the ASCII code for A?

• 97
• 65
• 66
• 98

Convert 11111111 to decimal

• 255
• 245
• 235
• 225

What are the only two numbers you can use in binary?

• 0 and 1
• 1 and 2
• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 1, 2, 4, 8, 16

Which of these is the correct sequence for the place values for binary numbers?

• 1, 2, 4, 8, 16, 32, 64, 128
• 1, 2, 4, 6, 8, 10, 12, 14, 16
• 1, 2, 3, 4, 5, 6, 7, 8
• 0, 1

How is our number system different from the binary system?

• Our number system is base-5; the binary system is base-3
• Our number system is base-10; the binary system is base-2
• Our number system is base-10; the binary system is base-1
• Our number system is base 100; the binary system is base-2

How would you write the number two in binary?

• 1001
• 0001
• 0000
• 0010

If 1 and 0 mean on and off. Is the number 1 on or off?

• ON
• OFF

Convert 37 to binary

• 00100101
• 00100011
• 00100111
• 01000101

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100