1.4 Characters

Computers can understand the English alphabet just like us! True or False?

• True

• False

• It depends on the size of the word

What do we call a collection of characters that a computer recognises from their binary number?

• A character

• A character set

• A character grouping

• A character list

Different character sets can have different amounts of characters. True of False?

• True

• False

• It depends on the CPU being used

ASCII is a well-used character set. Expand the acronym ASCII.

• Australian Standard Code for Information Interchange

• American Standard Code for Information Interchange

• American Sub-Code for Information Interchange

• American Standard Code for Information Investigation

ASCII uses how many bits to store the data?

• 5

• 6

• 7

• 8

Which of the following is a major disadvantage of ASCII?

• Not widely used in computing

• Difficult for some CPU's to understand

• Limited amount of characters

• You need training to be able to use it

Due to its limitations, ASCII was replaced by Unicode. Up to how many bits can Unicode use?

• 8

• 16

• 32

• 64

Which of the following formulas to calculate the size of a text file is correct?

• File size =

  size of character set

  x

  number of bits per character

• File size =

  number of characters x

  size of character set

• File size =

  number of bits per character

  x

  size of character set

• File size =

  number of characters x

  number of bits per character

The phrase 'Hello World' is stored in a text file using the ASCII character set (Excluding the quotation marks). What will the size of the saved file be (in bits)?

• 75

• 76

• 77

• 78

The phrase 'Everyone loves Arsenal' is stored in a text file using the ASCII character set (excluding the quotation marks). What will the size of the saved file be (in bits)?

• 153

• 154

• 155

• 156