How memory manages data
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Computer Science/Operating System
One of the key roles of an operating system is memory management.It must maximize the use of limited memory resources inside the computer.Virtual MemoryVirtual memory is a memory management technique thatabstracts the actual physical memory resources available on a computerand makes it appear as a very large memory to the users. The virtual addresses given are called virtual addresses (logical ..
PolyLingo - 7/25~26
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Projects/PolyLingo_2025
July 25Prepared for proper sandbox testingLogging-in with actual account triggers the next flow which opens the sandbox purchase modal so I cannot use the sandbox account to log in. Fixed it so I can use sandbox account to test purchasing subs product.Debugging in progressReconfirmed whether subscription plan changes are properly reflected in settings and vice versaSync works correctly; delay ap..
Load Balancer
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Computer Science/Network
A load balancer is a device or software that distributes incoming client requests across multiple backend servers, with the goal of increasing the system’s capacity and reliability.It helps handle high volumes of traffic by distributing requests based on factors such as URL paths, server availability, cache state, and cookies.Many load balancers also include security features such as filtering o..
ERD
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Computer Science/Database
ERD (Entity Relationship Diagram)An ERD serves as the fundamental blueprint when building a database,defining the relationships between relations (tables).ERDs are created based on system requirements, and the database is built from this design.Even after the database is built, ERDs can serve as a reference for debugging or redesigning business processes.However, while ERDs are useful for repres..
PolyLingo - 7/22~24
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Projects/PolyLingo_2025
What I did- Make a server to get the requests from Mobile app. This is required to protect private environment variables which are api keys and secrets. Use vercel to deploy the nextjs-server. also applied rate limits and other validations.- Fixed translation malfuction that it cannot make proper api calls because of the empty environment variables in expo project dashboard.- Test subscription f..
Memory
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Computer Science/Operating System
Memory refers to a device in electronic circuits that records data, state, or instructions.It is categorized into different types based on speed, volatility, and capacity: 1. RegisterLocated inside the CPU — smallest and fastest memory.VolatileFastest speedSmallest storage capacity2. *CacheRefers to L1, L2 cache.VolatileVery fast speedSmall storage capacity3. Main MemoryTypically refers to RAM...