COmputer Memory

• Location: Stored on the user's device (usually the browser).

• Purpose: Stores information about the user's preferences, browsing history, and session data.

• Scope: Can be shared across multiple websites or applications.

• Data: Persistent, can remain on the device for a long time, even after the browser is closed.

Cookies

• Location: Typically located on the processor(CPU) or directly connected to it.

• Purpose: Stores frequently accessed data (instructions, data) to reduce access time to main memory.

• Scope: Limited to a single device or application.

• Data: Temporary, volatile data that is erased when the device is turned off.

​Cache(Buffer) Memory

A computer understands its own language. All the data and information that are fed into a computer are converted its own(Machine) Langauge. Its language consists of two digits i.e, 0 and 1 which are called Binary Digits.
Each digit i.e., 0 or 1 is known as a bit.

Units of Computer Memory Measurement

1 Bit = Binary Digit

8 Bits =1 Byte

1024 Bytes =1 KB (Kilo Byte)

1024 KB =1 MB (Mega Byte)

1024 MB =1 GB (Giga Byte)
1024 GB= 1TB (Tera Byte)

1024 TB =1 PB (Peta Byte)

1024 PB =1 EB (Exa Byte)

1024 EB =1 ZB(Zetta Byte)

1024 ZB =1 YB (Yotta Byte)

1024 YB =1 (Bronto Byte)

1024 Brontobyte =1 (Geop Byte)

Geop Byte is The Highest Memory

Reorder

Reorder the following

• Terabyte

• Petabyte

• Exabyte

• Zettabyte

• Yottabyte

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Reorder the following

• Exabyte

• Zettabyte

• Yottabyte

• Brontobyte

• Geopbyte

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Reorder the following

• Bit

• byte

• Kilobyte

• Megabyte

• Gigabyte

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

1 Terabyte =

• 1024 Kilobytes

• 1024 Megabytes

• 1024 Gigabytes

• Yottabyte

Multiple Choice

1 Megabyte =

• 1024 Kilobytes

• 1024 Bytes

• 1024 Gigabytes

• Terabyte

Multiple Choice

1 Petabyte =

• 1024 Kilobytes

• 1024 Megabytes

• 1024 Gigabytes

• Terabyte

Hard Disk

A hard disk is made up of multiple stacked metallic plates, each called a platter.

Platter: The platters are coated with a thin layer of magnetic oxide material. All the data are stored on the platters.
Spindle:The spindles are simply the supporting structures that hold the platters in place and allow them to rotate.
Actuater: It's like the muscle of a body. The actuator is a component that controls the positioning of the read/write head. It move the read/write head to the correct location on the platter to access the desired data.

Categorize

Options (7)

coated with a thin layer of magnetic oxide material

the supporting structures

All the data are stored on it

allow platters to rotate.

muscle of a body

controls the positioning of the read/write head

It move the read/write head to the correct location on the platter

Organize these options into the right categories

Platter

Spindle

Actuater