ProLiant is a brand of server computers that was originally developed and marketed by Compaq. After Compaq merged into Hewlett-Packard (HP), HP retired its Netserver brand in favor of the ProLiant brand. ProLiant systems lead the x86 server market in terms of units and revenue. 
ProLiant servers are separated into four main product lines - ML, DL, BL and SL - which denote form factor. The ProLiant ML line comprises tower based servers with capacity for internal expansion of disks and interconnects, the DL line comprises general purpose rack mount servers, the BL line comprises blade servers which fit within the HP BladeSystem, and the SL line comprises dense rack mount servers for scale out environments.
ProLiant servers are also split into several series which denote processor configuration. The 100, 200, 300 and 400 series comprise single and dual socket capable systems, the 500 and 600 series comprise quad socket capable systems, and the 700 series comprises eight socket capable systems. The new 900 series also include eight sockets, supporting up to 80 cores and up to 4 TB of RAM. Models with 0 in the last digit use Intel processors; models with 5 in the last digit use AMD processors. 
In February 2012 HP announced the ProLiant generation 8.
See also 
|Wikimedia Commons has media related to: ProLiant|
- "new hp industry standard server family". FAQ. HP.
- Vassou, Andrea. "IDC Report Finds Worldwide Server Market Revenues Increase" "Tech Eye" May 27, 2010, retrieved May 27, 2010
- "HP Accelerates Server Market Transformation with Self-sufficient HP ProLiant Gen8 Servers". Hewlett-Packard. 2012-02-13.
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