This can be a real problem when accessing different parts of the same CAD drawing, because the pieces are stored in random locations. Random access is much more resource intensive, making the head read from place to place and sector to sector slowing things down. They’re just as good if you’re reading sequentially which means data is located or scattered over a sequence of memory spaces. The pros and cons of owning either HDD or SSD?įirst, HDD are pretty good if you’re reading the same data again and again (meaning same data in the same place). Supporting intensive consumer workstation environmentsThis is the most elite SSD coming from the manufacturer and is intended for high end 3D visual and graphics applications coupling over to extreme gaming.Check prices and ratings on OCZ RevoDrive 350 ISATA IIIDisk delivers a whopping 520 MBps of read and write at the very minimum with a MTBF of 1.2 million hours meaning on average it’s going to experience a failure once after every 137 years.Check prices and ratings on Intel SSD 520 Typical Specifications: Reads 510MBps and writes at 486MBps with the manufacturer’s assurance of such optimal performance even when the disk is full. 2.5” (7mm) SATA III (6GB/s) SSDComes in 256 GB and 512 GB.But that’s just the icing we’re tasting, let’s go check out the whole cake. They’re fast, reliable and have a longer life. SSDs changed that with a SATA interface connecting to flash memory. Reading and writing from such disks meant that a mechanical head would lower itself on the disk and detect the magnetic flux in order to interpret what the saved electrical charge represented as data. Data was stored on metal disks which rotated at high speeds (5600 rpm or 7200rpm). Before Solid State Drives (SSDs), Hard Disk Drives (HDDs) came in a variety of shapes, sizes and connectivity options with the block of mechanically driven pieces essentially the same inside.
Even the transition from ATA to SATA wasn’t as phenomenal a shift, as was brought along with the introduction of the SSD. Up until a few years ago, if you had enough space, that’s all that mattered.
Secondary memory, as we computer scientists call it, is one of the most neglected aspects of computing.
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