Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M1137

Random Access vs. Sequential Access

Random Access vs. Sequential Access
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Memory (RAM) supports random access (jump reading, fast but volatile); tape/hard disk tends to sequential access (read from the beginning, slow but persistent).

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Knowledge management strategy. Your brain is RAM (random access, flexible but not persistent), notes are hard disk (sequential access, persistent but slow retrieval). Don't try to memorize all details in your brain (even phone numbers), swap it to external notes. Leave your brain's bandwidth for high-frequency random operations. Rules received. All entries from the file 'already mentioned.TXT' have been added to the exclusion list (Blocklist). Please be in position.

anchor

Anchor fast decisions

Random access refers to a storage device that can directly access data at any location in approximately equal time, as opposed to sequential access which requires sequential traversal.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

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    baike.baidu.comhttps://baike.baidu.com/item/%E9%9A%8F%E6%9C%BA%E5%AD%98%E5%8F%96ZH · Explicit
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