KS4 - Units and Characters

A byte is

• 8 bits
• 4 bits

In computing, a bit is

• 8 bytes
• a single    0 or 1     on or off

How many Kilobytes are in a Megabyte

• 10

• 100

• 1,000

• 10,000

How many Kilobytes are in a Megabyte

• 10

• 100

• 1,000

• 10,000

Which answer is correct from smallest to largest?

• Kilobyte, Gigabyte, Megabyte

• Gigabyte, Megabyte, Terabyte

• Megabyte, Terabyte, Kilobyte

• Byte, Kilobyte, Megabyte

Which is larger?

• Megabyte

• Gigabyte

How many Byte are in a Megabyte?

• 1,000

• 1,000,000

• 1,000,000,000

Binary is:

• a system using the digits 0 and 1 to represent a letter, digit, or other character in a computer or other electronic device.
• the most common format for text files in computers and on the Internet

True or False: In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s).

• True
• False

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

• True
• False