The conventional storage mediums, HDD Hard Disk Drives are the ones that are used in the storage of operating systems, software and personal information. When making the choice of the type of the HDD, in most cases, you will have to choose between an external and an internal one.
The two are applied because of the same basic job being done that is, data storage but there is a difference between the two in regard to installing, portability, performance and use of the two.
Here we will now find out what the differences are.
________________________________________
What Is an Internal HDD?

Hard disk drive is a storage media installed either in the computer or a laptop. It is just able to plug to the motherboard, via SATA (or older IDE) connections.
Main Features:
• Installed inside the system
• Used as primary storage
Stores system and software operation.
Installation It has to be installed in the computer case.
Common Uses:
• Installation of windows or Linux or any other operating system.
Storing games and applications.
Storing games and applications.
• Permanent data storage
Internal HDDs are typically:
Drives of computer desktops (3.5 inches).
• 2.5-inch drives (for laptops)
Advantages of Internal HDD
• Better performance
Rudimentary systems: Operating systems.
• No extra cables
• More secure from theft
• Long-term stable storage
Disadvantages Internal HDD
• Not portable
There would be a need to install it technically.
• Harder to upgrade in laptops
________________________________________
What Is an External HDD?

The Externals HDD is a portable memory, which is connected to the computer through a USB or any other external ports.
It is a quickly fitted internal drive that is bundled with an enclosure having a USB port.
Main Features:
• Portable and easy to carry
• Plug-and-play device
• Connects via USB
• No need to open the computer
Common Uses:
• Data backup
Transfer between computers and computers.
Storing without provision of interior equipment.
________________________________________
Performance Comparison
Speed
The internal HDDs are generally more efficient in that they are attached to the motherboard using SATA in a right manner.
The working performance of the external HDDs is determined by:
• USB version (USB 2.0, 3.0, etc.)
• System compatibility
• Cable quality
Simple USB 3.0 and above is generally fast but internal drives are deemed to be more reliable.
________________________________________
Durability
HDDs will be internal and they will be included in the computer case cover.
External HDDs are susceptible to falls, shock and movement.
External drives are also very convenient to carry around and as such, they are destroyed easily unless they are well maintained.
________________________________________
Advantages of External HDD
• Portable
• Easy backup solution
The installation is technical free.
• It is compatible with various devices.
• There is no hassle in transmission of data.

________________________________________
Disadvantages External HDD
• Minor reduced performance.
• Can be lost or stolen
• Easier to be physically abused.
________________________________________
Why Do You Choose to use an Internal HDD?
Choose an internal HDD if:
Primary system storage will be required.
• You desire a certain degree of uniformity of OS and applications.
• Portability is not required
________________________________________
What cases would force you to use an external HDD?
Choose an external HDD if:
• You need backup storage
• You want portable data
You require an additional storage space but you do not have to open your PC.
________________________________________
Which One Is Better?

We cannot explain that one person is worse or better, it is because of your needs.
Throughput, system load: Internal HDD.
• External HDD: Will be used as a personal storage and mobile drive.
Many users prefer using both:
• Main storage Hard disk within the casing.
• External HDD for backup
________________________________________
Conclusion
HDDs find application in internal and external applications. The main storage and operations systems are to be stored in internal drives but preferably the external are located in the back up and portability.
The awareness of what you need will be in a position to make you take the right decision.
If you’d like, I can also:
- Compare HDD vs SSD
- Provide buying tips
- Create short exam notes
- describe type of storage, and size of storage.

