A:AnswerGreat question. Yes, your printer will work with this PC. It is compatible with Windows 10. All you have to do is visit the HP Software and Drivers webpage and download the driver for Windows 10 on to the PC.
Here is a link to the drivers page for the PhotoSmart C4780: http://support.hp.com/us-en/drivers/selfservice/hp-photosmart-c4700-all-in-one-printer-series/3794613/model/3794614#Z7_3054ICK0K8UDA0AQC11TA930O2
I hope this helps.
A:AnswerYes, I play CSGO, on this computer all the time. On CSGO, I can run all medium graphics with no lag, and on all high, I get a slight bit more lag, but it's not bad.
A:AnswerThe key specs of this computer are as follows:
Hard Drive Capacity 1000 gigabytes
Hard Drive Type SATA
Included Software CyberLink PhotoDirector, CyberLink Power Media Player, CyberLink PowerDirector and more
Operating System Windows 10
Processor Brand AMD
Processor Speed 2.0 gigahertz
Processor Mode lAMD A8-Series
System Memory (RAM) 8 gigabytes
Wireless Networking Wireless-B, Wireless-G, Wireless-N
A:AnswerGood question. You will not be able to upgrade the graphics card on this PC because it does not come with any extra PCI Express slots.
For detailed specs on this PC, please visit the following link: http://store.hp.com/wcsstore/hpusstore/pdf/m9z89aa.pdf
I hope this helps.