Sony DSC-U20 - Manual (Page 58)

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Recommended Macintosh environment
OS: Mac OS 8.5.1, 8.6, 9.0, 9.1, 9.2, or Mac OS X
(v10.0/v10.1)
The above OS must be installed at the factory. For the
following models, update your OS to Mac OS 9.0 or
9.1.
– iMac with Mac OS 8.6 installed at the factory, and a
slot loading type CD-ROM drive
– iBook or Power Mac G4 with the Mac OS 8.6
installed at the factory
USB connector: Provided as standard
Display: 800 × 600 dots or higher
32 000-color or higher
• If you connect two or more USB equipment to a single
computer at the same time, some equipment, including your
camera, may not operate depending on the type of USB
equipment.
• Operations are not guaranteed when using a USB hub.
• Operations are not guaranteed for all the recommended
computer environments mentioned above.
USB mode
There are two modes for a USB connection,
[NORMAL] and [PTP]* modes. The factory setting is
the [NORMAL] mode. This section describes the USB
connection using the [NORMAL] mode.
When the camera is connected to your computer via a
USB cable, the camera can draw its power from your
computer (USB Bus Powered).
* Compatible with Windows XP and Mac OS X
Communication with your computer
When your computer resumes from the suspend or
sleep mode, communication between your camera and
your computer may not recover at the same time.
When a USB connector is not provided
on your computer
When neither a USB connector nor a “Memory Stick”
slot is provided, you can copy images using an
additional device. See the Sony Website for details.
http://www.sony.net/