How To Build Your Own Computer - Step 6 - Choosing Storage Devices Tutorial
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Uploaded by PraetorianWarrior on Apr 17, 2011
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How To Build Your Own Computer - Step 6 - Choosing Storage Devices Tutorial
There are two main types of Storage Devices: Internal and External Hard Disk Drives.
What you need to look for when choosing a Storage Device:
*Memory Capacity: The amount of memory on the Hard Disk Drive. The higher the amount the better the capacity to price ratio. So choose carefully.
*Interface: The type of connection used by the Storage Device: Old HDDs used the IDE (with a bandwidth of 16, 33, 66, 100 and 133 MB/s), while new ones use a SATA (1 GB/sec), SATA II (3 GB/sec) and SATA III (6 GB/sec) interface.
*RPM: The higher the RPM, the faster the data can be read, thus increasing overall performance. Most HDDs have 7.200 RPM and can go up to 10.000 RPM.
*Memory Cache: The part of the HDD that stores data so that future requests for that data can be served faster, ranging from 8MB to 32 MB.
External Hard Disk Drives are connected to a computer through an USB slot and can be used to move data from computer to computer with ease. The only differences are the higher costs and lower speeds at which data is transferred using the USB and USB 2.0 connections, opposed to the internal HDDs. However while the USB 2.0 provides speeds up to 480 MB/sec, the new USB 3.0 connection can reach speeds up to 4.8 GB/sec.
*Make sure you buy a cooler for your HDD in order to increase its lifetime.
How To Build Your Own Computer - Step 6 - Choosing Storage Devices Tutorial
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