Saturday, October 17, 2009

Blog 8

Chapter 8, page 359 "hands-on Project" Project 8-1 Use the internet:

What is the price of the internal floppy drive? You can get an internal for about $25 at Tigerdirect.com.

What kind of connections do the external floppy disk drives uses? the particular one I looked at used a 34 pin floppy connector.

What is the price of an external floppy drive? You can get an external floppy drive for about $20 at TigerDirect.com.

Why do you think external drives cost more than internal drives? Because they need to be self sufficient and they have a case.

What are the advantages of external drives? Handy to carry around.
Internal Drives - Stability as far as cant be dropped, you cant loose them and you can transfer data to other machines carrying a floppy.

In addition, define these terms:

*******I need help with the layman's terms for Low level formatting and IDE...

DMA - sends data from drives to memory with out going through the CPU. DMA has 7 speeds 0-6

low level formatting - I read this and still cant tell you in my own words what this is.


SATA - A serial ATA has a bit following the next. They come in 2 cables, eternal and internal. They are thin so that airflow in the case is not compromised. External SATA are 6 times faster that USB or Firewire. They are more costly than a parallel cable, because they are new. They are expected to be for high-performance large drives. Several drives now use the SATA.

ATA - This is what controls speeds and transfer methods of drives and how they work with computers. There are 2 kinds, serial and parallel.

IDE - Technology used internally by a harddrive. (taken from the book. I still cant figure this is my terms)

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