IDE:

Integrated Device Electronics («Device with integrated electronics») or ATA (Advanced Technology Attachment), controls massive data storage devices, such as hard drives and ATAPI (Advanced Technology Attachment Packet Interface) Until about 2004, the standard main for its versatility and affordability. They are flat, wide and elongated.

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Sata:

The most innovative of the connection standards, it uses a serial bus for data transmission. Notably faster and more efficient than IDE. There are three versions, SATA 1 with transfer speed of up to 150 MB / s (now discontinued), SATA 2 of up to 300 MB / s, the most widespread at present; and finally SATA 3 of up to 600 MB / s which is beginning to make room in the market.

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The fan:

It serves to push the air through the radiator to obtain a better and more efficient cooling, but this is not always essential when the speed of the vehicle is sufficient to produce cooling by simple simple movement of the same.

Professional Source Reviw, intro.pe

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irDA:

Defines a physical standard in the form of transmission and reception of data by infrared rays.IrDA was created in 1993, between: HP, IBM, Sharp and others.
RJ-45: This connector is the one that has provided a great boost to these networks, because it is very easy to connect it to the cards and to the hubs and it is also safe thanks to a latching mechanism that it has.

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