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Everything about System request

Computer key

System Request is a key on personal computer keyboards that has no standard use. Introduced by IBM with the PC/AT, it was intended to be available as a special key to directly invoke low-level operating system functions with no possibility of conflicting with any existing software. A special BIOS routine—software interrupt 0x15, subfunction 0x85—was added to signal the OS when SysRq was pushed or released. Unlike most keys, when it is pressed nothing is stored in the keyboard buffer. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: System requestA 5-minute orientation
  2. Skim a recent paper: Retrieval request scheduling in a shuttle-based storage and retrieval system with two liftsInfluential work since 2022
  3. Pick up a classic book: Elderly Residents in OntarioThe most-reprinted book on the subject
  4. Read the landmark paper: Two-Stage Request Scheduling for Autonomous Vehicle Logistic SystemCited 38 times
  5. Go sideways: Magic SysRq keyA closely related topic
  6. Go sideways: Scroll LockA closely related topic

📖 Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

  1. History
  2. Modern uses
  3. Similar keys

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics