That will depend on the software that will need to be used on this computer. The Lenovo IdeaPad 1 14 Laptop is an entry-level configuration with Windows 10 S-Mode 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 software publisher's web sites of the software that will need to be used, 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 G27c-10 monitor, model number 66A3GCCBUS, ships with one DisplayPort 1.2 version + HDMI 2.0 version connections.

The Lenovo Chromebook Flex 3 11 model number 82HG0000US does not ship with Microsoft Office 365. This is a Chromebook. It uses Google Docs for office type programs. Google Docs is completely compatible with Microsoft Office Programs and this is a free service through the Google Server. If you must have the actual Microsoft Office Programs, you can purchase Microsoft Office 365 for this Chromebook at the Google Play Store.

The Lenovo IdeaPad 3 15 Laptop, model number 81WE00NKUS, has an SD card slot and you can use any external, USB-based Windows 10 compatible external hard drive. You can also use a Cloud-based storage account for additional storage space.