Not to be pedantic...okay, well, totally to be pedantic, but what we see in the last panel is Wally in possession of a monitor, not a computer per se...perhaps Wally just wanted a dual monitor setup on his own computer for some reason.
It took me a minute to figure out that Wally went into Ted's cubicle. It's hard to read the print that small on a computer. I love how Wally took Ted's computer! I wish I knew what happened when Ted came back.