$1$

Laptop computer

$2$

Tablet computer

$3$

All$-$in$-$one computer

$4$

Desktop computer

Match each of the options above to the items below.

not mobile, but allows for relatively easy upgrade and expansion

clamshell $($hinged$)$ type computer

not mobile, but since most of it's components are housed behind the monitor it takes relatively little space on your desk

highly mobile$-$you can use it while standing or walking around