If you’re giving your computer away, also make sure that you’ve signed out of iTunes, iCloud, and iMessage — there’s a chance your Apple ID data will remain on the drive after you reset it, and you don’t want anyone gaining access to your account.
An Apple ID is the account you use to access Apple services like iCloud, App Store, iTunes, Apple Music, Apple TV, and more. Your Apple account includes the email address and password that you use to sign in, and all the contact, payment, and security details that you’ll use across Apple services.
The simplest way to use WhatsApp on any computer is by using WhatsApp Web. But if you want a dedicated app running on your device then you’ll need to install the WhatsApp desktop app from their official website.
You could save your photos online or share a link via email, or even go as far as uploading a day-long video on the cloud, just for a family member nearby to see. But that’s just a long road, and it takes a lot of processes, but with Apple AirDrop you could do all that with just a few clicks.