What is Caching?
Caching is the frequent copying of data to a fast floor.
Definition and Word Origin
"Cache" means reserved stock. The system gives the same data from a copy instead of recalculating it. Response time decreases and the load becomes lighter. It works on every floor, from the browser to the data center.
How to Know and Use in Daily Life?
Scanner: Page and image storage.
Application: Offline copy.
Presenter: Storing query results.
Technical Depth and Architecture
Strategies:
LRU: The oldest unused issue is removed.
TTL: Once it expires, it drops.
Cache-aside: The application manages.
Browser directive:
Cache-Control: public, max-age=3600This line says that the copy is valid for one hour. There is a consistency cost: When the source changes, the copy becomes old, and critical data is kept short.
Frequently Mixed Things
It is considered a database. The database is persistent and large, the cache is temporary and fast. One is a safe and the other is a pocket wallet.
Use in Different Disciplines
Bag: Frequent books at hand.
Freezer: Daily meal ahead.
Cellar: Bulk stock is in the back.
Questions and answers
What happens if the cache becomes full?
The old and less used falls away, and the new one is written. Politics governs this.
When is it cleaned?
When time expires, capacity is overflowed or manually. Critical data is kept for short periods of time.
Is there any inconsistency?
It could be. When the source changes, the copy becomes outdated and version and time discipline is required.
Where is it kept?
At the end of memory, disk or CDN. It is selected according to the balance of speed and capacity.
Related terms
Related tools
This explanation was written in plain language for TreScout with AI and machine-translated from the Turkish original · the Turkish version prevails. If something looks wrong or missing, write to hello@trescout.com. Read in Turkish →