upward compatibility

upward compatibility

[′əp·wərd kəm‚pad·ə′bil·əd·ē]
(computer science)
The ability of a newer or larger computer to accept programs from an older or smaller one.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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As software tools are updated many times over such a period, upward compatibility of older files becomes a critical issue.
In any case, additional hardware modules are no longer necessary for efficiency because today's PC architectures and processors offer extremely high performance, and open standards essentially guarantee upward compatibility. Moreover, use of a single system with dual OS increases overall stability, and reduces expenses relating to hardware, energy consumption, and system size and weight.
Software environment suitable for large-scale, multi-node system The basic software, "SUPER-UX," maintains upward compatibility with the existing SX series, and achieves further scalability expansion due to enhanced I/O processing and MPI.
Desiderata Overview Desiderata facilitating the transition to a temporal DBMS upward compatibility Aim: to facilitate the migration of legacy code from an existing DBMS to a new temporal DBMS (Section 2.1).
Based on the Lucent Technologies Microelectronics Group USB-compliant chip set, the V.90/K56flex 56K USB Call Waiting Modem delivers powerful advantages in performance, innovation, power saving, and upward compatibility. Automatic rate adaptation technology adjusts speeds, depending on line conditions, to operate at the optimum speeds with the fewest errors.
Another source of irritation is upward compatibility programs that work perfectly under older Windows versions but function sometimes abnormally with Windows 95.
Unix operating system ensures long-term hardware and software growth, and upward compatibility. Other features include standard relational database for reliable, fast data access and flexible SQL ad-hoc reporting; security system; context-sensitive help for users; automatic downtime cause detection and job-driven software; and planning, execution and feedback requirements for closed-loop manufacturing.
Finally, the PowerPC Architecture was defined with a set of 64-bit extensions that allow for upward compatibility of 32-bit applications.
To ensure interoperability with systems not implementing these profile extensions, they will always be defined in such a way as to insure upward compatibility. We will, however, encourage all Profile adherents to implement these changes as quickly as possible, since true usefulness of the standard is heavily dependent on them.
Some firms may choose to explore upward compatibility by buying a machine that has a larger capacity than is necessary for the company's current operations.
Although 7.0 will require 2MB of memory, Davis says his goal is to build an operating system that will run comfortably across the entire range of macintosh models, with true upward compatibility for all old applications.