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Comparing this PC

with either of the IBM1401 systems being restored in this room

Stan Paddock looked at this chart, and suggested the chart Down Here

Warning: This table is for GEEKS only !! if you aren't, go Click Here

item	PC	1401	ratio	approx % dif
Characters of memory	1,000,000,000	16,000	62,500	6,250,000 %
Clock rate per second	2,000,000,000	87,000	23,000	2,298,850 %
8 digit additions per second
? clocks, from/to cache	7	32
	285,714,286	2,719	105,090	10,509,000 %
? clocks, from/to memory	90	32
	22,222,222	2,719	8,174	817,400 %
Mass storage, characters	disk	4 tapes(1)
	500,000,000,000	14,400,000	34,722	3,472,222 %
- sequential access data rate	1,000,000	2,000	500	50,000 %
- random access data rate	2,000	3	667	66,666 %
Printer, pages/minute	12	12	1	0.00%
Other I/O, char/sec	Internet	card reader
	40,000	1,000	40	4000 %
Cost, in 2009 dollars	$ 1,000	$ 1,000,000	0.001	0.10 %

Notes:

1) (characters 555/inch, 200 char/block =about 250/inch@1200ft times 4)

I think the above numbers are off by no more than 50% off (mostly).

Corrections and additions solicited. E-mail Ed Thelen

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IBM 1401 vs Modern IBM PC
Stan Paddock's Version ;-))

This table is for sitcom and sports channel watchers

Attribute	IBM 1401	Modern IBM PC
Computer	yes	yes
memory	core	dynamic ram
Mem size	microscopic	fantastic
Speed	slow as mud	fast as lightning
In Use	0000002	1,000,000,000 by 2010
Size	large bedroom	in refrigerator
Power	3 households	60 watt lightbulb
Repair people	000000008	243,984,176.5
Repair locations	0000001	243.984.6
Cost (new)	1 fancy private airplane	1 fancy bicycle
Cost maintenance/year	same as maintaining a private airplane, including hanger space	Zero, works until you give it away, - for a fancier model