To study how chips really work, MIT researchers built their own operating system
A new kernel called Fractal gives researchers a cleaner view of what’s happening inside a processor, and has already surfaced previously unknown behavior in Apple’s M1. “If you’ve got a hand magnifying glass, you can see a little bit. But if you had an electron microscope, now we’re really talking.
- ▪A new kernel called Fractal gives researchers a cleaner view of what’s happening inside a processor, and has already surfaced previously unknown behavior in Apple’s M1.
- ▪“If you’ve got a hand magnifying glass, you can see a little bit.
- ▪But if you had an electron microscope, now we’re really talking.
MIT News files mainly under science. We currently carry 46 of its stories.
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Story provenance
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Record
| Original publisher | MIT News |
| Canonical URL | https://news.mit.edu/2026/to-study-how-chips-really-work-mit-researchers-built-their-own-operating-system-0610 |
| Publication time | Wed, 10 Jun 2026 13:35:00 -0400 |
| Retrieval time | 2026-06-10T17:53:35.700Z |
| Last seen | 2026-06-10T17:53:35.700Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | a1ZcnijgVG3v |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
A new kernel called Fractal gives researchers a cleaner view of what’s happening inside a processor, and has already surfaced previously unknown behavior in Apple’s M1. Rachel Gordon | MIT CSAIL Publication Date: June 10, 2026 Press Inquiries Press Contact: Rachel Gordon Email: [email protected] Phone: 617-258-0675 MIT Computer Science and Artificial Intelligence Laboratory Close Caption: Fractal relies on a new construct: the outer kernel thread, which sits inside a user process’s memory but executes with kernel privileges. “If you’ve got a hand magnifying glass, you can see a little bit. But if you had an electron microscope, now we’re really talking. That’s what Fractal is. The electron microscope of operating systems,” says lead author and MIT PhD student Joseph Ravichandran.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at MIT News.