1. A processing system, comprising: an encoder to encode a real-time transmission of a presentation; a memory buffer to copy and store images of the presentation and convert the images into snapshot images including a first copy of the images and a second copy of the images; a transmitter to transmit the snapshot images to an external annotation device; and a receiver to receive annotation data of an annotation performed on the snapshot images at the external annotation device, wherein the annotation is encoded, in accordance with the annotation data, into the real-time transmission of the presentation to display the real-time transmission with the annotation, wherein the annotation is drawn in the memory buffer according to the annotation data in real-time on the second copy of the images in the memory buffer, such that annotated snapshot images are formed from the second copy of the images in the memory buffer and transmitted to the external annotation device, to provide real-time feedback of drawing the annotation on the external annotation device; and wherein the first copy of the images in the memory buffer is utilized for forming the snapshots when the annotation is cleared.
1. A processing system, comprising: an encoder to encode a real-time transmission of a presentation; a memory buffer to copy and store images of the presentation and convert the images into snapshot images including a first copy of the images and a second copy of the images; a transmitter to transmit the snapshot images to an external annotation device; and a receiver to receive annotation data of an annotation performed on the snapshot images at the external annotation device, wherein the annotation is encoded, in accordance with the annotation data, into the real-time transmission of the presentation to display the real-time transmission with the annotation, wherein the annotation is drawn in the memory buffer according to the annotation data in real-time on the second copy of the images in the memory buffer, such that annotated snapshot images are formed from the second copy of the images in the memory buffer and transmitted to the external annotation device, to provide real-time feedback of drawing the annotation on the external annotation device; and wherein the first copy of the images in the memory buffer is utilized for forming the snapshots when the annotation is cleared. 10. The processing system according to claim 1 , further comprising: a network adapter that includes the transmitter and the receiver.