N5 Computing - Computer Systems

What are the only symbols you can use in binary?

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

What is the denary number system?

• Our usual base 10 number system
• A special number system for computers
• It counts the number of dens
• De Nary's number system

True or False: The binary number for a capital 'N' is the same as the binary number for a lower-case 'n'?

• False
• True

What kind of data does a computer represent with binary?

• everything
• numbers
• text
• bitmap images
• vector images

What is the binary number 1001 as a denary number?

• 9
• 10
• 11
• 2
• 1001

What is the binary number 00011110 as a denary number?

• 62
• 30
• 31
• 33
• 32

How many bytes are needed store the word "Computing" in ASCII?

• 9
• 1
• 72
• 8
• 64

How many bits are needed store the word "Hello" in ASCII?

• 40
• 1
• 5
• 8
• 48

In 0.987 x 10^4 what is the mantissa?

• 987
• 4
• 0.987
• 10
• 9870

In 0.987 x 10^4 what is the exponent?

• 4
• 10
• 987
• 0.987
• 9870