...
Does it have at least 4 GB of RAM/memory? (8 GB of RAM or higher recommended, but not required)
Do you have at least 128 GB of storage (either hard drive or solid-state drive)? (SSD of 240 GB or higher recommended, but not required)
If Windows, is it version 10?
How to tell what version of Windows you are running: https://support.microsoft.com/en-us/help/13443/windows-which-operating-system
Microsoft ended support for Windows 7 on January 14, 2020 and is not permitted for use on the NCSSM network.
If a Mac, is it macOS version 10.1415.6 7 (MojaveCatalina) or later?
How to tell what version of macOS you are running: https://support.apple.com/en-us/HT201260
Does it have Wi-Fi?
It will need to be compatible with 802.11n/ac standard and have a 5 GHz wireless radio (most, if not all, will be compatible if purchased within the last six years).
Does it have a webcam?
Webcams are required for use with the Online program.
...