It will be good it you could post your PC specs, so we will be able to tell you if the game will run, but it should run on most computers, as Morrowind is 8 years old. I've heard that it may run "not so good" on X360.
About the game itself - you should read http://www.uesp.net/wiki/Morrowind:Morrowind_for_Oblivion_Players article, it will explain a lot of differencies between them.
If the things that you liked about Oblivion were exploration, quests, lore, then you should enjoy Morrowind very much. But if you liked voice acting, fact paced action or top-notch graphics, you ma be not to fond of Morrowind.
You should get it anyway, it is cheap nowdays, chances are that you will like it.
heres what i could find dont know if there specs or not
memory ram 2046 mb
procesor intel® pentium® dual cpu E2140 @ 1.60ghz 1.60 ghz
system type 32 bit opperating system
model s3322.uk
manufacturer hewlett-packard company
dont know how to find graphics card put i thing there are sites you can use to check
using windows vista