Page 10 - CodePilot V5.0 C4

BRIDGE BACK

1. Name the part of the CPU that performs mathematical calculations.

2. Which part of your body functions like a CPU?

Computers take input, like data and instructions and give output as information.

The input and results are stored in a special place called computer memory. This
memory keeps the data safe so it can be used again whenever needed. Let’s
learn more about this.

WHAT IS COMPUTER MEMORY?

Computer memory is a space where a computer stores information that it needs
to remember, both for a short and a long time. It functions like human memory,

helping the computer track its tasks. The basic unit for measuring memory is the
byte.

Computers store data using only two numbers 0 and 1. These numbers are called

binary digits or bits. A group of 4 bits is called a nibble, which is half of a byte. The
combination of eight bits makes one byte.

The various units for computer memory measurements are given below:

Units of Memory 1 bit

8 bits 1 Byte
0 1 0 1 1 0 1 0
1024 Bytes 1 KiloByte (KB)

1024 KiloBytes (KB) 1 MegaByte (MB)

1024 MegaBytes (MB) 1 GigaByte (GB) 8 bits = 1 Byte

1024 GigaBytes (GB) 1 TeraByte (TB)

1024 TeraBytes (TB) 1 PetaByte (PB)

1024 PetaBytes (PB) 1 ExaByte (EB)
The letter A takes the storage
1024 ExaBytes (EB) 1 ZettaByte (ZB) capacity of 1 Byte in a computer’s

1024 ZettaBytes (ZB) 1 YottaByte (YB) memory.

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