What is the purpose of having computers whole pakcage e.g montior,mouse etc?

what is the purpose of having computers whole pakcage e.g montior,mouse etc

What is the purpose of having computers whole pakcage e.g montior,mouse etc?hijack this

It's a lot cheaper than purchasing it seperate.

What is the purpose of having computers whole pakcage e.g montior,mouse etc?liveupdate

because you need all those things to work the computer!
What's the 'purpose' of your questions?

I mean, really, honestly, what do you hope to gain?
it' cheaper
It has 3 reasons:

1-The most important issue is compatibility.By purchasing a computer package,from a well known brand,you make sure that the computer parts either inside and outside ones are at a good compatibility level as the computer manufactures test thousands of parts in order to choose the most compatible ones.

2-Guarantee:It means that you will get one single guarantee card for all of your devices,so it would be very easier for you to solve your technical problems.

3-As the PC manufacturers buy computer parts on a regular basis and in thousands,so the device producers give them very special discounts,this is the reason that PC manufacturer can give you a computer very cheaper than building it your self.