Integra Micro Systems [P] Ltd. Offers Connectivity Software with Eight Bit Emulation. Integra Micro Systems [P] Ltd. Supplies software. Connectivity Software with Eight Bit Emulation is used for connecting the PC running MS-DOS to a UNIX/VAX system over a serial line. Connectivity Software with Eight Bit Emulation is the most reliable and popular connectivity software which provides a host of features which not only meet the connectivity requirements, but also enable to use the resources more effectively thereby increasing productivity.