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1. Importance of medium.
By the 1980s, hard disks had a seek time of ~20ms and today that's just down to ~10ms (on a consumer disk). So for the simplicity of argument, the HD seek time has "just" improved double. Numbers for historical CD-ROM seek times have eluded me, but it hints towards being ~90ms in 2000.
So one idea is simply: CDs were initially just meant for sequential reading of CD-DA. And, later on, do not seem to be considered as important as hard drives, or we would have seen improvements in stepping technology here.
2. Type of interface
Note too however that CDs act using optical means, while a spinning hard disk fares with magnetic - it might have to do something with processing delays, specifically the D2O/O2D converter in the optical components.
3. Caching
Copying a file in DOS always seemed a long business in the 90s on my personal box. There were indeed many seeks involved (and you could hear that). However, I have seen SMARTDRV in use on similar powerful models, and it seemed to make the procedure more responsive (at the cost of memory).
Now, hard disks have gotten more caches over the decades, currently they have something like 2 MB, or even more, while CD ROM drives seem to be still stuck at 128 KB.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoIn the simplest analogy, accessing the computer hard disk drive is like being inside your house and walking through the bathroom doorway. Accessing a CD-ROM or any other peripheral drive is like being inside your house but walking to to the backdoor, going across a bridge in your backyard, going to the bathroom window, and climbing through it but . A hard drive has more of a direct route than any peripheral which must use cables and connections.
Wiki User
∙ 11y agoOn modern market any hard drive is faster than CD-ROM.
Wiki User
∙ 8y agoThe mass of a hard disk drive head is much smaller than the mass of a CD-ROM drive head, making it possible to accelerate it faster.
Wiki User
∙ 13y agocoz they hav more memery on them
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When referring to hard drives seek time and latency are two that make up?
Access time
When reffering to hard drives seek time and latency are two factors that make up?
access time =)
When referring to hard drives seek time and latency are two factors that make up?
access time
When referring to hard drives seek time and latency are the two factors that make up what?
access time
Referring to hard drives seek time and latency are the two factors that make up what?
access time
What are some recent advances in hard disk technology?
Magnetic Platter based Hard disk drives are widely used but Solid State Drives using Flash Memories providing less seek time - Low Latency are recent advances in Hard disk Technology.
What makes SSDNow faster than standard hard disk drives?
Near zero latency on seek means faster response times and better performance
What is the differences between magnetic hard drives and solid state hard drive?
Traditional magnetic hard drives use platters that spin and a magnetic head that applies negative and positive charges to the platters to record data in 1s and 0s. SSD drives are essentially flash drives similar to what is used in iPods. "Switches" in each memory "bank" are turned on and off with an electrical signal to record the data in 1s and 0s. SSD is faster because it does not have to "seek" for the location of the data on the hard drive.
What does fragmentation do to your drive?
It depends on the type of drive. Fragmentation really does nothing to SSD drives since all storage cells are the same and can be accessed just as fast. Defragmenting an SSD drive only adds to the wear and tear and provides no discernible benefit. On mechanical hard drives, it can slow the drive and possibly lead to increased wear. However, that is not a reason to obsessively defrag, since that could also lead to increased wear and tear, and the time you spend defragmenting could take longer than the time you spend with the fragmentation. If you want to know what fragmentation is, it is simply having files chopped up into multiple chunks and stored that way. On SSD drives, there is no consequence to this. Mechanical drives would have to seek to find each chunk, resulting in more movement of the heads and slower access to the file.
Where can a hard core junky seek help online?
There are many places where a hardcore junky can seek help online. A hardcore junky can seek help online at popular on the web sources such as Alexa and Google Groups.
Why do people seek help from members of congress?
because it is hard to deal with federal bureaucracy
Where does a computer store information?
It depends on which computer information you are talking about. The start-up instructions for even turning the computer on are stored in the ROM. The operating system and programs you are using are stored in RAM while they are being used. However, most of the information you use is stored on storage devices such as the hard drive. Traditionally, the hard drive has been a motorized box with platters and heads inside. This is a magnetic storage medium. There is a seek mechanism to align the heads with the correct track, and sectors are a matter of waiting for the right moment to access them as the platters spin. Nowadays, Solid State Drives are in use as well. They have no moving parts and store data to nonvolatile memory. For certain tasks, they are much faster than traditional hard drives. Writes can be slower than mechanical drives, but it depends on the drive.
