Introduction to the iAPX 286 Author:Intel The iAPX 286 is a VLSI microprocessor system with exceptional capabilities for supporting large-system applications. Based on a new-generation CPU (the Intel 80286), this powerful microsystem is designed to support multi-user reprogrammable and real-time multitasking applications. Its dedicated system support circuits simplify system hardware; s... more »ophisticated hardware and software tools reduce both the time and the cost of product development.
The iAPX 286 microsystem is a total-solution approach that enables you to develop high-speed, interactive, multi-user, multitasking — and multiprocessor — systems more rapidly and at costs lower than ever before.
• Reliability and system "up-time" are becoming increasingly important in all applications. Information must be protected from misuse or accidental loss. The iAPX 286 includes a protection mechanism that continually monitors application and operating system programs to
maintain a high degree of system integrity.
• The iAPX 286 provides a large address space to support today's application requirements. Real memory consists of up to 16 megabytes of RAM or ROM. This large physical
memory enables the iAPX 286 to keep many large programs and data structures in memory simultaneously for high-speed access.
• For applications with dynamically changing memory requirements such as multi-user business systems, the iAPX 286 CPU provides on-chip memory management and even virtual
memory support. On an iAPX 286-based system, each user can have up to a gigabyte of virtual address space. This large
address space virtually eliminates restrictions on the number or size of programs which may be part of the system.
• Large multi-user or real-time multitasking applications can use the advanced features and high-speed operation of the iAPX 286 to reduce response time for system users. Microcomputer systems servicing four or five simultaneous users may now be expanded to support more than three times that number, and real-time systems can respond in one-sixth the time or less.« less