Ratio of the profit which can vis-a-vis the capital which it invests. Those which divide the profit with investment.

It is important index in order to judge whether or not with general ones, you bear the profit which it corresponds to investment as a business of enterprise and the index which measures the profitability of property and equipment. At the time of information system investment, in order not to do the investment whose ROI is low there is a heart per seat [ru] necessity.

ROLAP <Relational OLAP>

Reading: Earl o lap
Full spelling: Relational On-line Analytical Processing
Field:
Software > database > ROLAP

One of form of the OLAP system which analyzes the database which enterprise accumulates multidimensionally. Direct retrieval & totals the data which is housed in the relational database of server side, on client side forms the result in the multidimensional data and visualizes. In order to use the relational database which is already standardized in comparison with MOLAP which has the necessity to construct the multidimensional database to the server, but problems of compatibility between the manufacturer being few advantage, there is also a fault that operation time is slow.

Rolly

Reading: [rori]
Field:
Mobile > audio > Rolly

The portable music player whom SONY sells in 2007 September. We do the frame of your cartridge type, adjust to music and time time we have the unique function which rolls.

Rolly with your cartridge type of diameter 6.5cm× length 10.4cm, but size of the size which it can have with one hand, while carrying about, using the built-in speaker unlike the generally known portable music player whom it plays back, with the head phone terminal, it plays back music with deferment.

While playing back music, it rolls to front and back left and right, it blinks the light/write of two annular conditions “motion function” with largest feature, the user can set motion making use of the software of attachment. Be able to set motion at the tune unit, adjusting to tune, it moves suitably even with the tune where motion is not registered.

ROM <ROM>

Reading: ROM
Full spelling: Read Only Member
Field:
WWW > Sight > community > ROM
Internet > ROM

To JWord register sight
ROM

* Related terminology

* Bulletin board system
* BBS
* Mailing list
* Semiconductor
* Memory

It is the sufficient participant to whom the bulletin board system (BBS) and with the mailing list and the like, the self does not speak, exclusively peruses the speech and the like of the other participant. The read-only memory which is one kind of semiconductor memory (ROM: Read Only Memory) the [ji] [tsu] it is expression.