A diode is a two-terminal electronic component with an asymmetric transfer characteristic, with low resistance to current flow in one direction, and high resistance in the reverse direction. A diode vacuum tube or thermionic diode is a vacuum tube with two electrodes, a heated cathode and a plate, in which electrons can flow in only … Read more

In-memory database

An in-memory database is a database that resides in memory. In-memory databases are often used for high-performance applications where response times are critical. In-memory databases can be either write-through or write-back. Write-through in-memory databases write to both the in-memory copy and the persistent copy of the database simultaneously. Write-back in-memory databases write to the in-memory … Read more