This laptop comes with a 320GB Serial ATA Hard Drive.
Sure the PS3 was designed to accept a standard laptop harddrive and made for easy replacement and upgrade of the harddrive. You can have the largest laptop size available installed in the PS3 or any other size. The PlayStation network support also has procedures for upgrading the harddrive.
A PS3 harddrive is a standard size notebook harddrive and are only worth the amount of a used laptop harddrive of the same GB size. The $50 extra currently being charged for the 320 GB harddrive is about value of a new 160 GB harddrive so a used 120 GB harddrive would be worth much less.
This Laptop features a 160 GB Hard drive and 10 gb additional online storage available.
The PS3 was designed to be able to have a standard laptop size harddrive and meant to allow upgrading. The only reason to upgrade a hard drive is for more storage space and/or a higher quality harddrive. That is the reason to upgrade any harddrive
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The harddrive is the size of a standard notebook harddrive not a PC size harddrive. So you can not fit it in the smaller spot required for the notebook size harddrive
PS3 has a Harddrive which you can change with a standard laptop harddrive
You can store around 150 full size movies if you get the 250gb harddrive, but its not recommended.
I would recommend buying a USB hard drive enclosure that will fit your harddrive.
Playstation's are aSonyproduct and Xbox 360's are Microsoft. The Wii and Wii U are from Nintendo. They are all assembled from components and SonyUsesa Standard Laptop Harddrive to allow upgrades to a larger size harddrive.
You can use a standard Laptop harddrive not a PC harddrive see related link
Sure the PS3 was intended to have a new upgraded harddrive and uses the standard laptop size and the site has the related link for your assistance