The Lenovo Yoga Duet 7 13IML05, model number 82AS004WUS, does not ships with a pen included, the Active/Digital Pen is sold separately.

The maximum RAM the Lenovo IdeaCentre A340-22 All-In-One system model number F0EA003RUS, can support is the 1x 8GB SO-DIMM DDR4-2666 RAM it ships with. This model can support up to 2 drives, 1x 2.5 inch HDD (installed) + 1x M.2 SSD. Maximum capacity: 2.5 inch HDD up to 1TB, M.2 SSD up to 512GB. We recommend you consult your certified technician about your storage upgrade options, if you have further questions.

That will depend on the requirements and compatibility of the APPs you want to use. The Lenovo IdeaPad 3 17 Laptop, model number 81WF004CUS, ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific APPs software publisher's web sites for the specific APPs you will be using, for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.

The Lenovo IdeaPad 3 17 Laptop, model number 81WF004CUS, uses integrated graphics processing within the Intel Core i5-1035G1 processor within this configuration. It is the integrated, Intel UHD Graphics version.