Virtual Network Computing VNC Sangmi Lee Florida State University Department of Computer Science and CSIT (School of Computational Science and Information Technology) 400 Dirac Science Library Tallahassee Florida 32306-4120 11/16/2018

What is VNC? Virtual Network Computing. http://www.uk.research.att.com/vnc/ Remote display system to view a computer from anywhere on the Internet and from a wide variety of machine architectures.  Mainly aimed at remote administration – with opoosite scenario from education – namely display taken from client to “master” not vice versa as in education 11/16/2018

What are key Features? Small and simple Platform-independent No state is stored at the viewer Sharable 11/16/2018

VNC features Collaborative Visualization Event handling Java viewer Secure VNC using SSH CORBA interface 11/16/2018

VNC screenshots A Window desktop being used from other desktop. A Windows desktop being used from within Netscape on other desktop. 11/16/2018

VNC screenshots A PC desktop being viewed from a Linux viewer from Navigator on a Linux Machine. 11/16/2018

VNC screenshots A Unix desktop being accessed from a Macintosh from a native Macintosh viewer A Windows desktop being accessed from a Macintosh using Java.   A Unix desktop being accessed from a Macintosh using Java 11/16/2018

VNC in Distributed classroom Student VNC Client Instructor Network Student VNC Server VNC Client - Unix - Windows NT - Macintosh - Hand-held device Hand-held device VNC Client 11/16/2018

VNC in Distributed classroom Lecture tool in the distributed classroom Collaboration tool for group of students Instructor - Monitor - Hand-held device Student - Monitor (Unix, Windows, Macintosh) - Java capable browser 11/16/2018

Applying VNC Using Open source code Visualization server module Improved (multi-cast) performance for VNC On the Palm, a new relelease much improves VNC http://www.harakan.btinternet.co.uk/PalmVNC/index.htm 11/16/2018

PalmVNC Version 1.4 Ultra-thin client uses less than 40Kb of Palm memory. VNC servers available for a wide variety of platforms. Desktop displayed in colour on Palm IIIc devices. Desktop displayed in 4- or 16-shade greyscale on other devices. Supports server-side scaling to reduce bandwidth. Can be stored in Flash memory using TRG's FlashPRO. Freeware, with full source available under GNU GPL. 11/16/2018