A hinge comprising: a hinge frame, mountable to and/or within a device and functionable as a support structure for other components of the hinge, with a support plate rotatably mounted on an interior surface of the hinge frame; a cam rotatably mounted on an interior surface of the support plate, the cam including a mounting portion for mounting a moveable component to the cam, the moveable component pivotably attachable to a rear portion of the device, the hinge with multiple preset open positions and for attaching a portion of the movable component to the device, a cam follower pivotably mounted within the hinge frame; and a hinge spring mounted within the hinge frame and that applies force to the cam follower such that the cam follower is held in contact with the cam in at least some positions of the hinge; wherein the support plate is rotatably engaged with a first inside surface of the hinge frame, the cam is rotatably engaged with the support plate on a first side of the cam, and the hinge further includes: a different support plate rotatably engaged with a second inside surface of the hinge frame, wherein the cam is rotatably engaged with the different support plate on a second side of the cam; the hinge characterised by a spring-loaded plate pin slidably positioned at least partially within the support plate; a plate pin slidably positioned at least partially within the different support plate; and a cam pin slidably positioned at least partially within the cam, wherein pivoting of the cam to a particular open position relative to the support plate enables the spring-loaded plate pin to the engage the cam with the support plate and causes the spring-loaded plate pin to apply pressure against the cam pin such that the cam pin slides relative to the cam and engages with the different support plate; and further pivoting of the cam causes a corresponding pivoting of the support plate relative to the hinge frame; a hinge frame, mountable to and/or within a device and functionable as a support structure for other components of the hinge, with a support plate rotatably mounted on an interior surface of the hinge frame; a cam rotatably mounted on an interior surface of the support plate, the cam including a mounting portion for mounting a moveable component to the cam, the moveable component pivotably attachable to a rear portion of the device, the hinge with multiple preset open positions and for attaching a portion of the movable component to the device, a cam follower pivotably mounted within the hinge frame; and a hinge spring mounted within the hinge frame and that applies force to the cam follower such that the cam follower is held in contact with the cam in at least some positions of the hinge; wherein the support plate is rotatably engaged with a first inside surface of the hinge frame, the cam is rotatably engaged with the support plate on a first side of the cam, and the hinge further includes: a different support plate rotatably engaged with a second inside surface of the hinge frame, wherein the cam is rotatably engaged with the different support plate on a second side of the cam; the hinge characterised by a spring-loaded plate pin slidably positioned at least partially within the support plate; a plate pin slidably positioned at least partially within the different support plate; and a cam pin slidably positioned at least partially within the cam, wherein pivoting of the cam to a particular open position relative to the support plate enables the spring-loaded plate pin to the engage the cam with the support plate and causes the spring-loaded plate pin to apply pressure against the cam pin such that the cam pin slides relative to the cam and engages with the different support plate; and further pivoting of the cam causes a corresponding pivoting of the support plate relative to the hinge frame; a different support plate rotatably engaged with a second inside surface of the hinge frame, wherein the cam is rotatably engaged with the different support plate on a second side of the cam; the hinge characterised by a spring-loaded plate pin slidably positioned at least partially within the support plate; a plate pin slidably positioned at least partially within the different support plate; and a cam pin slidably positioned at least partially within the cam, wherein pivoting of the cam to a particular open position relative to the support plate enables the spring-loaded plate pin to the engage the cam with the support plate and causes the spring-loaded plate pin to apply pressure against the cam pin such that the cam pin slides relative to the cam and engages with the different support plate; and further pivoting of the cam causes a corresponding pivoting of the support plate relative to the hinge frame;