Olympus CAMEDIA C-740 Ultra Zoom Reference Manual page 45

Shooting modes
Setting-related modes
P Program shooting
Allows you to take still pictures. The camera sets the aperture and shutter
speed. Other functions, such as flash modes and drive modes, can be
adjusted manually.
p Aperture priority/Shutter priority/Manual shooting
When the mode dial is set to p, the following items can be set with the
menus. g"A/S/M mode" (P.63).
3
A Aperture priority shooting
Allows you to set the aperture manually. The camera sets the shutter
speed automatically. By decreasing the aperture value (F-number), the
camera will focus within a smaller range, producing a picture with a
blurred background. Increasing the value forces the camera to focus
over a wider range in the forward and backward directions, resulting in
increased "depth of field", in which both the subject and the background
are in focus.
g"Aperture priority shooting" (P.64)
Aperture (F-number) is
decreased.
S Shutter priority shooting
Allows you to set the shutter speed manually. The camera sets the
aperture automatically. Set the shutter speed according to the subject
and the type of effect you want.
g"Shutter priority shooting" (P.65)
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Aperture (F-number) is
increased.