Facts about Mainframes...

they say mainframe is an outdated technology, but it takes 
atleast 20 more years to replace them 
It doesn't matter that u r a mainframe professional or not, 
but the facts are amazing ....... and fact no. 16 is the most 
amazing!!!!!!!!!! 
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1. The mainframes hold approximately " 70 % " of the entire
 data stored in this planet

2. The latest ones can support over 25,000 users 

3. They can support devices spread over 26 miles using 
fibre optics 

4. The size of the "basic" OS is about 14 GB

5. This OS comes in about 57 magnetic tapes, But latest
with 4 tapes 

6. It takes ATLEAST a month to install and customize a basic 
mainframe OS configuration 

7. It takes around 3 full days for a mainframe to get up 
and running

8. Basic configuration for development environment costs 
8 crores (hardware + Software) 

9. A full team of qualified system operators are always 
required to be on stand by to ensure successful operation 

10. Earlier mainframes were provided with cooling pipes 
through which cold water was passed to cool the 
system - TCS have one in Chennai facility 

11. Recent mainframes have variable speed fans in the 
cabinet to keep it cool 

12. Have u ever heard of a mainframe system being 
hacked??? Mainframes are one of the most secure 
data installations ever 

13. You cannot buy the mainframe OS, but u'll have to 
pay a license to use it. The cost?? cool …..1.5 crores a year. 

14. Finally, mainframes today r the most preferred data 
servers for even the most hi-fi of the organizations! 

15. So far no virus has attacked Mainframes 

16. Most of the people working on Mainframe had 
never seen the mainframe.

17. Infosys has 2 mainframes 1 in Bangalore n other in Mysore