PCSA Overview

This document provides an overview of Digital Equipment Corporation's Personal Computing Systems Architecture (PCSA), an extension integrating VMS and DOS environments to allow PC workstations to connect with VAX/VMS computers and share resources. Published in May 1988, it outlines the system's components, services, and operational considerations.

The PCSA network operates on a client-server model, where VAX/VMS or VAXmate servers offer virtual disk, file, and printer services to client workstations. Virtual disks provide DOS-formatted storage on VMS disks, file services allow access to shared directories and files across LANs or WANs, and printer services enable network printing. System administrators are responsible for setting up and managing these services, including access control, backups, and configuring client workstations.

PCSA clients, which can be VAXmate workstations or PCs with Ethernet controllers (or asynchronous DECnet connections), use DOS and MS-Windows interfaces. They can utilize terminal emulation (VT240/VT220) via SETHOST or MS-Windows emulator for host access. Workstation configuration involves specific boot files (CONFIG.SYS, AUTOEXEC.BAT, AUTOUSER.BAT, WIN.INI) for network and user settings. The document also discusses various sample hardware configurations for PCSA networks, including DECconnect systems and non-DECconnect daisy-chain setups, detailing the necessary hardware components like DELNI, DEMPR, and DEPCA.

Planning a PCSA network involves not only hardware but also a thorough analysis of the software environment. This includes identifying support personnel, understanding user tasks and expertise levels, assessing resource availability, and implementing robust security measures. Finally, the document details the comprehensive PCSA documentation available, categorized for server administrators, client users, and standalone VAXmate users, covering installation, administration, networking, and user guides.