Digital Technical Journal

This volume of the Digital Technical Journal (Fall 1991) focuses on advances in image processing, video terminals, and printer technologies. Key contributions include:

• Image Processing: A discussion on hardware accelerators for bitonal image processing, including the development of the DECimage 1200.
• Video Terminals: An exploration of X window terminal design and development, comparing the VT1000, VT1200, VT1300, and the VXT 2000.
• Input Devices: An overview of the ACCESS.bus, an open desktop bus for low-speed input devices.
• Printing Systems: Detailed papers on the design of the DECprint Common Printer Supervisor for VMS, the Common Printer Access Protocol (CPAP), and the turbo PrintServer 20 controller, including the use of the RETrACE performance analysis tool.