Fundamentals of Computing - Year 9

What is the point of binary?

• It represents how computers interpret electrical signals
• Because we like to make you do extra maths ;-D
• For the lulz
• Because it describes star systems

What is 1011 in denary?

• 11
• 14
• 26
• 1011

Convert 65 to binary

• 01100001
• 00100001
• 01000001
• 00100101

Convert 196 to binary

• 11000110
• 11100100
• 11000100
• 11010100

Convert 00100100 to decimal

• 26
• 36
• 46
• 56

Convert 11111111 to decimal

• 255
• 245
• 235
• 225

What logic gate is this?

• AND
• OR 
• NOT
• TO

What logic gate is this?

• AND 
• OR 
• NOT 
• THE

If the number of cores goes up from 2 to 4 – what is the exact effect on performance? (1-4)

• Performance decreases

• The maximum number of instructions executed per second doubles

• The maximum number of instructions executed per second quadruples

• The maximum number of instructions executed per second is halved

What is the purpose of the CPU?

• To process all the data and instructions.
• To turn the computer on.
• To create PowerPoint presentations.
• To provide power to the computer.