[zyrrahXD]

Good day.
Just want to know more about HDD.

first, what is the difference between the hdd of a desktop and a laptop?
what do you call the port/socket/input of a hdd? is it different from a desktop/laptop?
please add some facts
thanks )

[Rommel]

zyrrahXD, on 26 September 2012 - 06:48 AM, said:

Good day.
Just want to know more about HDD.

first, what is the difference between the hdd of a desktop and a laptop?
what do you call the port/socket/input of a hdd? is it different from a desktop/laptop?
please add some facts
thanks )

Just off the top of my head in basic terms.
Difference? Size and speed. Generally desktop HDDs run at 7200 RPM and laptops at 5400 RPM. Generally. Each can have eigther or.
Desktop HDDs ( sata platter drives, serial ) have a power port and a data port. Both look similar just the power is wider.
IDE HDDs (pata platter drives, parallel ) have a molex power connector and a very wide multi-pin ribbin data cable.
These are of lower performance.
Laptop HDD has multi-pins that when placed in the laptop mate to a prefixed female connector.

SSD HDDs have the same power and data connections as a desktop sata platter HDD.

Hope this helped.

This post has been edited by Rommel: 26 September 2012 - 07:27 AM

[smax013]

The obvious difference is the physical size of the drives. Laptops tend to use 2.5" drives (the 2.5" is about the nominal width of the drive...they are actually about 2.75" wide), but a few have used 1.8" drives. Desktop computers tend to use 3.5" drives (again they are about nominally 3.5" wide...actually about 4" wide), although they can use 2.5" drives. The other dimensions tend to "follow" proportionally (i.e. a 3.5" drive is taller & longer than a 2.5" drive).

This difference in size tends to also translate into a similar difference in storage size/space. 2.5" drives max out at 1 TB in practical terms (there is a 2.5" 2 TB drive available, but it is too tall to fit in most, if not all current, laptops). 3.5" drives max out at 4 TB (NewEgg has one 4 TB drive, but a bunch of 3 TB drives).

As noted by Rommel, there also tends to be a difference interms of rotational speed. Laptop drive tend to be 5400 rpm drives, but you can get 7200 rpm drives. OTOH, most desktop drives are 7200 rpm drives, but you can get 5400 rpm drives (they tend to the more "green", aka lower power, drives) or even 10000 rpm drives.

This also translates into differences in power requirements. Generally speaking 2.5" drives require less power than 3.5" drives. This is why so-called "portable" external drives can be "bus-powered" (i.e. no external power source...just the USB connection to the computer) drives...they use 2.5" drives.

[compnovo]

Rommel and smax013 covered everything really well, I have just one tidbit about SSDs:

As noted, their connectors are the same as SATA HDDS of either size, and MOST SSDs you can buy off the shelf are the 2.5" form factor. There are a few SSDs available on expansion cards but they are very expensive, and there are some proprietary SSDs like you see in the MacBook Air. The advantages of the 2.5" SSDs is that they are down below $1.00/GB, and will fit in either laptops or desktops (many even come with a 3.5" adapter tray).