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Software that runs from the CD-ROM

By jardinier ·
From time to time I acquire software which runs directly from the CD without installing any files on the hard drive. In some instances just an icon is installed.

Invariably I find that this type of software runs faster than software which has files installed on the hard drive.

Why is this, and why isn't there more of this type of software available?

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by huntingboy In reply to Software that runs from t ...

As is not feasible to run freaquent used software from the CDs b'cause one or more CDs are dedicatedly used to run one software and the handling of CDs is also a concern because CDs can get scraches and you will not be able to run the software after some time and also decreases the life of CD ROM lens.

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by jardinier In reply to

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by huntingboy In reply to Software that runs from t ...

As I have little knowlege of these kind of software except games and some educational softwares. But here are my views

Is is not feasible to run freaquent used software from the CDs b'cause one or more CDs are dedicatedly used to run one software and the handling of CDs is also a concern because CDs can get scraches and you will not be able to run the software after some time and also decreases the life of CD ROM lens.

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by jardinier In reply to

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by 3xp3rt In reply to Software that runs from t ...

When you run an application from HDD you use a little part of memory (RAM) for the application, and the rest is used from HDD. So the application uses frequently the read/write of HDD. When you use the CDROM, the major part of application is in memory, so it?s very fast to read/write of data. Use Task Manager->Performance to see this. But there are a lot of incontinent. Firs is the lot of use of the CDROM, second is a limitation of use other programs (multitasking).

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by jardinier In reply to

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by jardinier In reply to Software that runs from t ...

I apologise for an apparent misunderstanding. I was referring to software that requires the CD-ROM to be in the drive in order to run the program. This is the case for most games and almost all reference software such as encyclopedias, scriptural, history, animals and so forth.

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by HAL 9000 Moderator In reply to Software that runs from t ...

Withe the exception of Games I've found most software that runs this way slower than stuff stored on the HDD as the CD can not access the data as quickly no matter how much it is cached into RAM. But with things like Encyclopedias they generally only have small files to read so they may appear faster off the CD than something installed onto a HDD which is always bigger in file size.

To see the difference try Farstone's Virtual CD where the CD is copied to the HDD and loaded off there, things loaded this way are much faster than when run off a CD even though the HDD is working overtime.

So I guess the answer to your question is that because the files are smaller they appear to load faster but they do not necessarily actually perform faster.

Col

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by jardinier In reply to

Hi Col
I do have a copy of Norton's Virtual Drive although I have never installed it because my hard drives were not large enough.
Anyhow you have answered my question satisfactorily.

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by jardinier In reply to Software that runs from t ...

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