A digitizer is a component that handles touch-screen operation on a mobile device. It is a layer of material that detects and converts the touch of a finger or a stylus into an electrical signal that can be processed by the device. A digitizer works with a display screen to create a touch-screen interface that allows a user to interact with the device by touching pictures or words on the screen.

A type II hypervisor is a software application that runs on top of a host operating system and creates virtual machines that are isolated from the host. A type II hypervisor provides the highest level of isolation from the host operating system because it does not have direct access to the hardware resources and relies on the host operating system for drivers and services. A type II hypervisor also allows the guest operating systems to run different types of operating systems than the host.
References: The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook, page 223

you need to know the socket type before you can go and find the replacement motherboard

An SSD (solid state drive) is a removable storage device that uses flash memory to store dat a. It is secure, portable, and does not contain moving parts, which makes it more reliable and durable than other types of storage devices. An HDD (hard disk drive) is not suitable, as it contains spinning platters and read/write heads that are prone to damage and data loss. A NAS (network attached storage) and a SAN (storage area network) are not removable devices, as they are connected to a network and provide shared storage for multiple users.