Table:
0
A
B
C
D
E
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G
1
Model
Memory ( RAM )
Storage ( flash )
Operating system version
Memory card
Weight, dimensions
Retail availability
2
770
64MB
128MB
OS2005/6, OS2007/8HE
1 RS-MMC slot II
230g, 141x79x19mm
November 2005
3
N800
128MB
256MB
OS2007/8
2 x SD slots with SDHC
206g, 144x75x13(/18)mm
January 2007
4
N810
128MB
256MB + 2GB internal
OS2008
1 x MiniSD slot with SDHC
226g, 128x72x14mm
October 2007
5
N810 WiMAX Edition
128MB
256MB + 2GB internal
OS2008
1 x MiniSD slot with SDHC
229g, 128x72x16mm
April 2008
6
N900 (not marketed as an Internet Tablet)
256MB
256MB + 32GB internal
Maemo 5
1 x microSD slot with SDHC
181g, 110.9×59.8×18mm
November 2009
7
N9 (not marketed as an Internet Tablet)
1GB (mobile DDR)
512MB internal + 16 or 64GB on board
MeeGo 1.2 "Harmattan"
no memory card slot
135g, 116.45x61.2x12.1mm
September 2011

Questions and formulas:
Question: How much memory (RAM) does the Maemo 5 operating system have?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="maemo 5"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,D2:D7="maemo 5"),2))
Level: medium
Question: Which operating system has a storage (flash) of 128MB?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="128mb"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,C2:C7="128mb"),4))
Level: medium
Question: What is the weight and dimensions of an N800?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="n800"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,A2:A7="n800"),6))
Level: medium
Question: Which operating system has 1GB (mobile ddr) memory (RAM)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,B1="1gb (mobile ddr)"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,B2:B7="1gb (mobile ddr)"),4))
Level: medium