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This allows higher speeds, but also makes them expensive

By on Mar 31, 2014 in Uncategorized | 0 comments

What are the different types of external internal hard drives I read Sata somewhere

canada goose outlet store quebec Since the question says “are”, I will not waste time on IDE, since that is outdated. Also, I will focus only on what canada goose cheap canada goose black friday sale comes in consumer grade products. canada goose outlet store quebec

First and most important classification, we have HDDs and cheap Canada Goose SSDs.

cheap canada goose winter jackets HDD: Hard Disk Canada Goose Jackets Drive: This is a canada goose bunch of magnetic discs spinning very fast, with a head reading and writing data on the magnetic surface of the disks. These are larger and cheaper, but also slower, since the head has to reposition itself every time you need data from a different location. cheap canada goose winter jackets

SSD: Solid State Drives: You can consider these as bigger version of pen drives. They store data in memory (flash) chips, and this means they don have any moving parts. This allows higher speeds, but also makes them expensive. Also, they don come in the capacities HDDs come in.

For the rest of the answer, I will refer to HDDs as magnetic disks and SSDs as SSDs or flash. If I say hard drives, it encompasses both.

Now that we know what types of drives are there, Canada Goose online let start with internal drives:

Computer use two main types of connectors Canada Goose Outlet for hard drives:

SATA: This is the most common connector used in laptops. These come in SATA 2 Canada Goose Coats On Sale and SATA 3 versions, supporting 3.0 and 6.0 Gbps respectively.

SATA drives come in two form factors. 2.5″ which goes into laptops and looks like this when it is magnetic:

and like this when it is an SSD:

Then we have 3.5″ which is bigger and thicker, a little bit faster, and looks like this when it is magnetic:

and like this when it is an SSD:

canada goose jacket outlet sale 3.5″ SSDs are actually quite rare. canada goose jacket outlet sale

canada goose outlet california 3.5″ drives are faster on average because they have more power to play with. canada goose outlet california

canada goose online shop germany PCIe: This is a very recent technology which comes in select Ultrabooks like the canada goose coats on sale Macbook Air. You can canada goose coats buy these for desktops, but they are quite expensive. However, they are insanely quick. I know of some that can hit 24 Gbps, and there are even faster versions available. canada goose online shop germany

canada goose outlet sale For laptops, they look like this: canada goose outlet sale

These are exclusively SSDs.

Apart from the size, you will hear about RPM rating. 5400, 7200 and 1000 RPM are the most common ones. This is the speed at which the magnetic disks inside the HDD spin in revolutions per minute A higher RPM HDD is faster, but it consumes Canada Goose Online more power and is more expensive. The extra power consumption also translates to more heat, both of which are issues in laptops, but not desktops.

Now we come to external drives.

External drives are of two main types. They are both based on SATA drives, and as a result, come in two form factors.

2.5″: These contain 2.5″ magnetic drives with a chip that converts SATA to any one of the connectors available.

They mostly connect using USB Canada Goose sale 2.0 (480 Mbps) or USB 3.0 (5 Gbps)

cheap canada goose jackets uk (USB 3 is blue inside, USB 2 may be white/black/grey. It white here) cheap canada goose jackets uk

but you also have some Firewire 400(400 Mbps)

(4 pin variant on the left and 6 pin variant on the right)

Firewire 800

These need external power supplies since the disks are heavier, and need more power than the port can supply. These also come in USB, Firewire and Thunderbolt versions. They are also referred to as external hard drives.

There are a few differences in the 2.5″ and Canada Goose Parka 3.5″ external drives. 2.5″ is more convenient, but 3.5″ is more heavy duty and reliable. Also, 3.5″ drives tend to be faster on average, thanks to the dedicated power supply.

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