Ion Audio Slides 2 PC
CMOS image sensors are slowly replacing CCD sensors, due to reduced power consumption and better image quality. They can be very compact and cost relatively little to produce.
1800 x 1800dpi
The highest resolution the scanner can put out without using software to make it bigger. In dots per inch.
Canon CanoScan LiDE 700F
9600 x 9600dpi
With more USB ports, you are able to connect more devices.
HP Scanjet Enterprise 7000nx
Newer USB versions are faster and have better power management.
Fujitsu ScanSnap iX500 Sheet-Fed
Film scanners can scan film negatives.