Crash Course Computer Science #4 - Binary

What will we learn in this episode?

• how computers calculate equations using transistors

• the history of how math created circuits

• how computers store and represent numerical data

• the way computer transfer electrical signals using gates

What numbers are used in binary?

• 0 and 1

• 1 and 2

• 0 and 10

• 1 and 10

Regular numbers, like we are familiar with, use a multiplier of ___ to make larger numbers.

• ten

• one

• five

• two

Base-ten notation is also called...

• decimal

• hundred

• fraction

• computer

Instead of 100s, 10s, and 1s, binary uses....

• 0s and 1s

• 4s, 2s, and 1s

• 1s, 2s, 10s

• 10s, 1s, 0s

The binary number 10110111 is actually what number?

Binary ________ just like regular math.

• carries the 1

• subtracts the 1

• multiplies the 1

• deletes the 1

An 8-bit binary has how many options for values?

• 256

• 8

• 64

• infinite

Put the bytes in order of

SMALLEST to LARGEST

• bit

• byte

• megabyte

• gigabyte

• terabyte

Most computers use the __________ to show whether a number is positive or negative.

• first bit

• last bit