My iMac has Macintosh HD and Macintosh HD 2 Need someone to answer my questions!

Hello Everyone!, just few months ago i ordered an iMac 27inch from the official Apple website. i orderd my iMac with a 251GB Flash Storage and a 2TB SATA DISK.
so my questions are this :
1) Why is it called SATA disk and why is the other one called Flash Storage?
2) how can i use my SATA disk?
3) is the SATA disk the same as Flash storage?
4) What can i mainly use Flash storage for? and mainly what should i use SATA Disk for?
( i mainly put like my whole life with the iMac on the flash storage, is that ok?)
Whoever can answer all of my questions i will be very greatful,
Thank you in Advance,
Kind Regards,
Farhad.

Your internal hard drives are two different technologies. The 2TB disk is a spinning set of platters with a read/write head that moves across the disks. The 251 Flash Storage is a solid state configuration of memory chips, think flash card in a camera but not removable. SATA - Serial Advanced Technology Attachment. Both devices are SATA. The Flash Drive or SSD (Soild State Drive) is much faster than the 2TB drive so i would keep applications and the operating system on the SSD. Media such as videos and pictures and music would be appropriate on the 2TB drive. When editing Movies or Pictures you might get a speed improvement by working on the SSD but keep them stored on the 2TB drive. Hope this helps.

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iMac (27-inch, Mid 2011) (Verified)
iMac - model: iMac12,2
1 3.1 GHz Intel Core i5 CPU: 4-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1333 MHz ok
BANK 1/DIMM0
4 GB DDR3 1333 MHz ok
BANK 0/DIMM1
empty empty empty empty
BANK 1/DIMM1
empty empty empty empty
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Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6970M - VRAM: 1024 MB
iMac 2560 x 1440
System Software: ℹ️
OS X 10.9.5 (13F34) - Uptime: 3 days 11:48:59
Disk Information: ℹ️
ST31000528AS disk0 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 999.35 GB (511.48 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
HL-DT-STDVDRW GA32N
SAMSUNG MZ7TE512HMHP-00000 disk1 : (512,11 GB)
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LaCie (disk1s1) /Volumes/LaCie : 409.69 GB (409.15 GB free)
LACIE SHARE (disk1s2) <not mounted> : 102.42 GB
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Line 6 GX
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. FaceTime HD Camera (Built-in)
Apple Computer, Inc. IR Receiver
Apple Internal Memory Card Reader
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
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witchdaemon Program (/Users/[redacted]/Library/PreferencePanes/Witch.prefPane/Contents/Resources/wi tchdaemon.app)
iTunesHelper ProgramHidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
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DVDAuthorizeHelper Program (/Users/[redacted]/Library/Application Support/Helper/DVDAuthorizeHelper.app)
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FlashPlayer-10.6: Version: 15.0.0.152 - SDK 10.6 Support
DivX Web Player: Version: 3.2.3.1164 - SDK 10.6 Support
AdobePDFViewerNPAPI: Version: 10.1.12 Support
AdobePDFViewer: Version: 10.1.12 Support
Flash Player: Version: 15.0.0.152 - SDK 10.6 Support
Default Browser: Version: 537 - SDK 10.9
OVSHelper: Version: 1.1 Support
QuickTime Plugin: Version: 7.7.3
GarminGpsControl: Version: 4.0.4.0 Release - SDK 10.6 Support
SharePointBrowserPlugin: Version: 14.3.4 - SDK 10.6 Support
JavaAppletPlugin: Version: Java 7 Update 67 Check version
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DVCPROHDAudio: Version: 1.3.2
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from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
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Message was edited by: SugarFree13

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