No you should not buy softwares before you buy your hardware because buying hardware first helps you decide what softwares will be compatible with your PC or notebook and then see which ones to buy.
No, Best Buy does not do pc based data acquisition. This is usually something that it done by software and hardware to sample signals and conditions before converting them into a number sequence.
I think firewalls can be both software and hardware. When you buy computers, it will usually always come with a limited time only antivirus and firewall.
Graphics performance is largely dependant on hardware. The only software that directly affects graphics is the driver, which should be freely updateable from the manufacturer's web site.
open source software
If you feel that your existing computer is not functioning properly. If there is a hardware problem then you can get new one, if there is software/hacking/virus problem then contact your service provider.
A complement is a product(s) that you buy together with another product, much like gas an oil compliment a car, computer software and hardware compliment each other.
open source software
You can buy the software from your school. You need to find out the specifics before doing so. Superschoolsoftware.com is a website that may cater to teachers who need to buy software
There are many nutrition software. I recommend you look at Axxya's (axxya.com/diet_nutrition_software.php). Here are some stuff you should know about before you buy your software. www.nutribase.com/101.html
Try before you buy software. The software is usually time limited until you buy the full version.
You can go check buy going to my computer right clicking then select manage. from there you can look at all the different hardware and software specs.
Software is system code on a computer. Most software comes in the forms of programs that you can download or buy and install. Hardware, however, is the physical components of a computer system.