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- PLUG AND PLAY IN WINDOWS 95
-
- Technology
-
- Plug and Play is a framework architecture,
- or specification, developed collaboratively
- by leading PC hardware and software vendors.
- The Plug and Play technology is the centerpiece
- of an industry initiative to dramatically
- improve the ease of setup and use of personal
- computers and peripheral devices, such as
- printers.
-
-
- Introduction
-
- Today, changing the hardware configuration of
- a PC is a task that few consumers attempt and even
- trained technicians can find difficult,
- time-consuming and frustrating. The complexity
- of PC setup has resulted in lower customer
- satisfaction support costs. Plug and Play
- alleviates these problems. Products designed
- to meet the Plug and Play specification are
- easier to setup and use. Plug and Play enables
- users to add or change hardware and software
- components, with the computer automatically
- adapting to the new configuration. Required
- action by the user is minimized or eliminated.
-
-
- Three Components of a Plug and Play System
-
- The Plug and Play framework architecture, which is
- operating-system-independent, consists of three
- components:
-
- - A Plug and Play operating system
- - A Plug and Play BIOS (basic input/output system)
- - Plug and Play hardware devices
-
-
- Plug and Play BIOS and Hardware Device Specifications
-
- A group of PC industry companies, in cooperation with
- the Plug and Play Association, have developed Plug
- and Play specifications that are now supported by
- hundreds of PC hardware and software vendors.
- These specifications include those for Plug and Play
- BIOS, APM, ISA, SCSI, COM, and LPT.
-
-
- Plug and Play in Windows 95 Features
-
- Microsoft Windows 95, the next version of the
- Microsoft Windows operating system, is the first
- operating system compatible with Plug and Play.
- There are four key features of the Plug and Play
- component in Windows 95:
-
- - Devices can be attached to most buses and connectors.
- Buses: ISA, VL, PCI, EISA and motherboard
- Connectors: PCMCIA, SCSI, IDE, serial port,
- parallel port and monitor
-
- - Device-driver installation, loading and unloading
- are automated.
- - Dynamic or hot-configuration changes are possible.
- For example, hot docking, hot plugging, and
- PCMCIA insertion.
- - Drivers and applications are notified of
- configuration events. Smart software can react
- to system changes.
-
-
- Three Key Benefits
-
- - Ease of use. During installation, the user
- does not have to worry about switches, jumpers,
- hardware conflicts, rebooting or dealing with
- drivers. For example, to turn a standard desktop
- computer system into a great multimedia system,
- all the user has to do is "plug" in a
- Plug and Play sound card, CD-ROM drive and
- SCSI adapter, turn on the system, and "play"
- a video clip.
-
- - Great mobility. For example, hot-docking stations
- that support Plug and Play enable the user to
- remove a portable system while it's running ╛
- so the user can bring the system to a meeting
- without having to close and reboot the computer.
- The system automatically senses its removal from
- the station, reconfigures itself to work with
- a new display and adjusts for the absence of a
- network card and large disk drive.
-
- - Cost-effectiveness. As much as 50 percent of
- support calls to operating system and device
- manufacturers result from installation and
- configuration problems. By making these
- operations easier ╛ and automatic ╛
- manufacturers can achieve lower support costs
- and pass these savings to the user. Easier
- installation and configuration during setup
- also benefit OEMs who offer Windows-based
- systems with preinstalled software; they too
- can pass cost savings to the user. Similarly,
- Plug and PlayÆs Universal Driver simplifies
- device-driver development, which enables a
- developer to create a single driver that
- works across multiple bus types and eliminates
- the need to include bus-specific code in each
- of several drivers.
-
-
- Market Momentum
-
- Acceptance of the Plug and Play architecture
- is widespread. Plug and Play components are
- real and have been demonstrated. In addition,
- the industry is making rapid progress in
- delivering additional Plug and Play
- specifications and products, including the
- following:
-
- - Plug and Play specifications have been
- released for BIOS and APM, and for ISA, SCSI,
- LPT and COM devices.
-
- - Today more than 100 Plug and Play devices
- are available.
-
- - Fully Plug and Play-capable systems, including
- all Plug and Play devices and a Plug and Play
- BIOS, are already available. These systems
- offer complete Plug and Play functionality
- when combined with the first Plug and Play
- operating system, Windows 95, scheduled to
- be delivered in August, 1995.
-