# RAM is the New Disk :
The superiority of RAM is at the heart of the RAM is the New Disk paradigm. As an architecture it combines the holy quadrinity of computing:
# Performance is better because data is accessed from memory instead of through a database to a disk.
# Scalability is linear because as more servers are added data is transparently load balanced across the servers so there is an automated in-memory sharding.
# Availability is higher because multiple copies of data are kept in memory and the entire system reroutes on failure.
# Application development is faster because there’s only one layer of software to deal with, the cache, and its API is simple. All the complexity is hidden from the programmer which means all a developer has to do is get and put data.
/// RAM memory architectures to verge on going mainstream. 1TB of RAM across 40 servers at 24 GB per server would cost an additional $40,000.1U and 2U rack-mounted servers will soon support a terabyte or more or memory.
