The PDP-8 family of minicomputers was built by Digital Equipment Corporation between 1965 and 1990. The PDP8 computers were one of the first computers that were affordable by a broader range of customers; that contributed in the success of these machines. In 1976, Intersil developed a PDP8 chipset consisting of the IM6100 processor [4], the I/O extension (IM6101) and the UART (IM6402). The PDP8...

Universal Serial Bus (USB) is a connectivity specification that provides ease of use, expandability, and good performance for the end user. It is one of the most successful interconnects in computer history. Originally released in 1995 for PCs, it now is expanding into use by embedded systems and is replacing older interfaces such as serial and parallel interfaces as the preferred communication...

The Universal Serial Bus transmits differential data over twisted-pair cables originally designed for signaling at 12Mbit/s. Because of the recent specification of a 480Mbit/s signaling speed with the existing cabling, the high frequency behavior and temporal response of these cables is of interest. In this work, twoand threedimensional field solvers are used to characterize the field behavior ...

This paper describes the design and development of a low cost Data Acquisition System (DAS) using PIC18LF4553 microcontroller for real time data acquisition. The designed DAS has 4 analog input channels having 12-bit resolution and was interfaced through the USB port of the PC. The interface to the PC is basically a USB based virtual serial port emulation using FT232R, a USB to serial UART inte...