[adeel420] All About Plug-and-Play
- From: "Sajid Iqbal" <sajid_cyberspace@xxxxxxxxxx>
- To: <"Undisclosed-Recipient:;"@smtp-2.hotpop.com>
- Date: Sun, 1 Dec 2002 00:45:22 +0500
All About Plug-and-Play
A PnP system scans the entire system for new hardware every time the
system is booted. It also determines what every device needs, and
makes sure it gets it.
First, though, it scans for legacy devices, or non-PnP devices.
These devices can't change their settings and have fixed
requirements, so the system must first find these, then configure
the other PnP devices around them. Although Windows 95 can't
automatically adjust a legacy device's settings, it can often
recognize it during install. Windows 95 has many legacy device
drivers built into it. Old hardware will work under 95. If it will
work under Windows 3.x, it will almost certainly work with 95.
Plug-and-play doesn't always work. Whether you have all PnP hardware
or a mixture of PnP and legacy devices, PnP can be rather hit and
miss.
One common reason for problems is that the system is choosing
settings taken by a legacy device. A PnP system has no adjustment
abilities when it comes to a legacy device. The more legacy devices
you have, the more problems you will have with PnP.
Another reason is the broad array of systems out there. Every system
is different, with old drivers, old BIOS, off-brand hardware, you
name it. There is no way manufacturers can design hardware for every
possibility.
PnP problems are on the decline though as companies iron out
problems as they learn. PnP hardware is getting more and more
user-friendly.
Sometimes Windows just won't detect your new hardware when you boot
it up. In this case, you just have to tell it to look for it. You do
this in Add New Hardware Wizard in the Control Panel of Windows 95.
Just follow the on-screen instructions. When it asked you if it can
scan for new hardware, select yes(recommended). It will tell you
that it might take a few minutes. Fine. Click next. It will search.
If it finds it, it'll display it in a box. If it correctly
identified the hardware, click Finish, and it will install the
drivers. If it can't find it, it will ask you to manually install
it. Click Next. It will give you a big list of devices. Try to find
yours on the list, select it, and click Finish. If it's not there,
and you have a disk with the software on it, click Have Disk, and do
it that way.
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