on the computer — devices take on (GiU Unit 124)
The frame
Section titled “The frame”Paul never backs up the data on his computer. ✓
on = device/surface logic
Section titled “on = device/surface logic”Content, data, files, apps ride on the device:
- on my computer / on my phone / on a laptop
- on the internet / on a website / on an app
- on a disk / on a drive / on a memory card
in = physically inside the machine (the cavity, hardware): the fan is in my computer — not where data lives.
Why on
Section titled “Why on”The device is treated as a surface/medium you put things onto, like a desk. Same on-logic: on TV, on the radio, on page 53, on the phone (device/medium = on).
| on | in |
|---|---|
| on the computer (data) | in the computer (inside the case) |
| on my phone (apps) | in my bag (physical location) |
Source
Section titled “Source”Raymond Murphy, English Grammar in Use, Unit 124 — in, at, on (position) 2. Ebot lesson 2026-09-05.