Tiny computer. The ones I worked on were in rooms twenty times larger, with dozens of rows of equipment racks and many terminal consoles. Bluetooth and wi-fi would have been a dream, as wiring was a nightmare, both below the floor and overhead. I remember working on bringing up a new mainframe site. A green engineer used the wrong labeling tape to identify the ends of hundreds of cables under the floor tiles. After a few months, all the labels lost their stickiness and fell off the cables. Instant panic! I welcome the innovations of having these new portable wireless computers!