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mainframes compared to p.c.


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#1 geopeach64

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Posted 12 March 2005 - 08:35 PM

WHAT ARE SOME OF THE REASONS YOUR PERSONAL COMPUTER TODAY COULD BE USED IN PLACE OF A LARGE MAINFRAME COMPUTER IN 1975?
OTHER THAN THEY ARE MORE POWERFUL THAN THE EARLIER MAINFRAMES, I CAN'T SEEM TO THINK OF ANY OTHER REASONS. I NEED THE INFO. FOR A ESSAY IN SCHOOL. THANKS FOR ANY HELP YOU CAN PROVIDE.

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#2 jgweed

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Posted 13 March 2005 - 01:16 AM

RAM, for one. Microprocessors? NO PUNCH CARDS!!!!!!!
Cheers,
John

Edited by jgweed, 14 March 2005 - 01:17 AM.

Whereof one cannot speak, thereof one should be silent.

#3 acklan

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Posted 13 March 2005 - 02:56 AM

A few thoughts...

1) Main frames were shared sometimes between parties (Gov. agencies, colleges, small to medium buinesses....) . With a PCs or small servers the information can be local without the need for remote computers . This saves money by eliminating the need to purchase computer time .
2) Not only are the computers more powerful , so is the software that drivers them . Aps. that were only dreamed about 30 years ago are common place . Proccesses that once took hours or even days are now done in minutes . Not only did the time decrease , but now you don't have to tie up the network with small jobs . Most places used terminals which relied on a network computer to work . While terminals are still common a PC can be more flexiable .
3) When you talk Main Frames you talk networks . While you need a technical computer background to work with Main Frames , you can put an intranet together from off the shelf , out of the box compontants . INFOMATION is the other advance that makes the PC more atractive . A little time researching on the internet and a manager/owner of a small buiness could have a 5 to 15 computer network up and running with internet in a weekend .
I sure some will disagree , but the fact is the PC has put computing in the hands of millions that would have never had access to a MAIN FRAME . Any job you do on a PC today , that uses 100% of a modern computer , would have had to use a MAIN FRAME 30 years ago . From accounting to video editing , and gaming PCs make it possible and affordable .
I have a friend who has 3 terminals and a PC on an intranet at her work . In '95 they had a simular setup but with 4 terminals a fractional T1 serving on a remote server out of state . They now only use a remote computer to store the backup files . I can't even say if it is a MAIN FRAME . The point is the PC allow them more control and saved money . Now they use a dialup to backup files .
MAIN FRAME run the internet . But without PCs he internet would not be what it is today .
Comparing MAIN FRAMES of 30 years ago to mordern PC is hard , because MAIN FRAME of 30 years ago worked without PCs . Today it is hard to have one without the other . I know very few people that use only a PC without accessing a MAIN FRAME . Remember if you are on the internet you are accessing a MAIN FRAME .



acklan
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