2023 IGCSE Binary, Hex, Decimal

What is a register

• The electricity that makes a binary number

• Something in the computer

• A binary number

• A place to store binary data

What is an algorithm?

• A operation that is stored in the CPU

• A sequence of steps to find the answer of a math problem

• A sequence of steps that is followed to solve a problem

• Adding numbers together

When does an 'Carry' operation occur in the CPU?

• When you are adding two binary numbers

• When you store a binary number

• When the register can not store the result of a addition

• When the memory holds the binary number for the CPU

When does an overflow occur in the CPU

• When binary number is all '1's

• Always after adding two binary numbers

• When you pour milk no your computer

• If the result of a binary addition is larger than the value a register can hold

What is the name of the number system that a computer uses:

All the registers and electronics in a computer is made of millions of tiny _______

In the following register which bit is the most significant bit? [0 | 0 | 1 | 0 | 1 | 0]

• 2 bit on the left

• 1st bit on the left

• 1st bit on the right

• 3rd bit on the right

In the following register what is the value of the least significant bit? [1 | 1 | 0]

• 0

• don't know

• 1

• the register is too small

Where in the computer is a register located?

Convert the following number from Decimal into Binary 12 using a 4-bit register