OCR CS 1.4 Data Types

What is binary?

• A way of representing data for computers.

• No

• A way that printers work.

• How you type on a computer

How many bytes are in a kilobyte?

• 2
• 124
• 1024
• 102440

Which is the smallest storage unit in a computer?

• Bit
• Megabyte
• Nibble
• Terabyte

What is 11100011 [phone]

• 00110011101

• 10011001110

• 0110101110

• 1001100110

• 0111200100

What is 277 in binary?

• 100101010010010010001010

• 01101010101010101010010101010101

• 0101011.1010101001111011010

• 01110011010101010110101010

• Print("Help")

Work out the standard deviation of the following:

 $192,177,789,569$  

• 259.2502411

• 259.250412

• 259.250514

• 259.250574

A car salesman records information about the cars he is selling.

The age of each car is _____ data

• Qualitative

• Continuous

• Discrete

Bob has a 1GHZ dual core CPU, Amy has a 2GHZ single core CPU. Which can process more instructions per second?

• Bob

• Amy

• Equal

• Neither can process anything