Hard Disk Drives

Over a period of time as some programs are downloaded and others are deleted; your hard drive becomes fragmented with "loose ends" of old programs and when new programs are added, your CPU will stuff parts of the new program into various spaces all over your hard drive. This has the effect of making your CPU work harder when said program is called up. Thus, slowing down the overall performance of your computer. By doing a disk cleanup (defragging), your computer can delete these loose ends and re-position your programs together on your hard drive so that the CPU doesn't have to search all over the disk for a particular program when it is called up.

please answer it v

5400, 7200, 10000 or 15000 RPM (revolutions per minute)

ATAPI 8 is the answer you're looking for, not the most recent, but it was at the time the A+ book with this question was published

This is called "Disk Formatting" "Formatting"

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.

read/write head

if you receive a virus or any malware that disrupts your computers functions or stops you from accessing your files, or if the virus is made to delete your files it can disable you access to the info and you might need to reinstall your operating system in this case you would not be able to access your information unless it was backed up. you could also cause physical damage to your laptop or its stolen and unless its backed up you wont be able to access any of your files. Also you should do it time to time so that you are updateing you backed up files with any current files that you recently created

Go to Control Panel and open up your hard drive by double clicking on it. Then inside the window that opened, right click once and select properties. Then select tools and click on scan disk, or error checking. They mean the same thing. You will need to reboot and then the check will start.

Yes, you can change the floppy drive but you'll have to take apart the whole laptop.

If you have no experience taking fixing laptop, I wouldn't recommend trying it.

But if you still want to try it, I'll post a link with Toshiba laptop disassembly guides so you can try.

The items which cannot be repaired are consumable items and if repaired, the costs of which are more than the cost of item will be treated as consumable item.

No formatting a conventional hard drive does not slow down the hard disk.

When we talk about formatting, this means the removal of all data on the disk as well as the operating system (OS). This is often done in order to reinstall a faulty OS or to install a now one.

Basic formatting of the drive deletes the file allocation table leaving the drive "empty" to be installed over (similar to a major delete, but without the recycle bin option); low level formatting of the drive (normally done through the motherboards ROM system) "wipes" all contents of the drive.

I suppose the notion of formatting the drive and slowing it down comes from the fact that the read/ write function performed by the disks heads may in some way damage the disk. This is simply not true.

HOWEVER, solid state drives should not be continually formatted and should not have any form of optimisation software run on them. They work according to different principals (as opposed to a magnetic drive), and continual reading and writing of data to the sectors does actually cause them to become "worn", the entire cluster is then no usable; the unusable clusters are stored in a portion of the memory so that the computer cannot access them and try to store data over the "bad cluster". The same applies to flash drives as they are a smaller version of a solid state drive.

A zip disk is a disk which can be read by a Zip drive.

The hard disk drive stores information on the computer. It has read and write capabilities and the information stays there when the computer is turned off.

a disk drive is a hard drive on your computer for memory storage. all computers have them, its where my documents is and all your files, although you can buy a second or third or fourth disk drive. its just the way a computer reads a memory card or hard drive

Generally speaking, only one. However, there are some devices, known as "port multipliers" that will allow you to connect up to 15 devices to a single channel.

You cannot do that. SATA and IDE are not compatible. What you can do is to buy special expension card which can work with SATA drives. For instance,

http://www.newegg.com/Product/Product.aspx?Item=N82E16815124022

pl click the following link for the detailsed answer for the above question

Not necessarily. If you only use Windows, it makes no sense to have different file file systems, as FAT32 is rather inefficient and Windows 2000/XP/Vista default to NTFS anyway. If you dual-boot with Linux, you should use different file systems, as Linux doesn't handle NTFS very well, Windows can't read Linux partitions (like ext3 or ReiserFS) at all without additional software, and FAT32 is unsuitable for both. If you use Linux by itself, you can use multiple file systems without any issue, although sticking to one may be easier for performance or maintenance reasons (ReiserFS is faster; ext2/3 has more widespread support in various recovery tools).

NO! Think about this logically.....

A HARDDRIVE (HDD)

1. reiceives a signal to write information to the in a location on a platter (the metal disc(s) inside a HDD)

2. the platter must already be spinning at the required RPM's or it will need to take the 1/5 sec - 1/10 sec to speed up.

3. the metal arm with the sensor must move back and forth on the disc writing the information.

4 receives signal to access information (that was just written) in a location on a platter

5. the platter must already be spinning at the required RPM's or it will need to take the 1/5 sec - 1/10 sec to speed up.

6. the metal arm with the sensor must move back and forth on the disc reading the information, and either, #1 cache parts before sending, or #2, stream it to the CPU

7. The information is then sent to the CPU along an extremely thin, but fast wire.

RAM (Random Access Memory)

1. The CPU sends information Directly to the RAM, and stores it.

2. The CPU recalls some or all of the information and is sent back to the CPU along a fast thin metal wire.

Even HDD that spins at over 7200 RPM can never match the speed of ram. Hard drives are the equivelent of looking for your answer in the library, while RAM is like "googling" the answer.

Ram is also rated by speed. Some ram is slower than others. This is a 256mb ATI RADEON x1800 is slower than an NVidia 64mb GeForce 4. The NVidia card is MUCH older, but faster, and for games that require less technology, and only 64 mb of ram, the NVidia will always outperform the newer larger card.

Ram is rated by "Bandwidth" usually in terms of Gigabytes per second. This is the sole most important fact in choosing ram or a video card of the desired size.

Do not make the mistake of thinking you are "upgrading" your computer by putting in 2 more gigs of ram you got for a steal of a deal as the store probably got the deal, not you. Always check to make sure the ram has the highest ratting possible.

The only reason ram might not matter, is if the ram is faster than the circuitry, or CPU itself.

always compare the max speed of your system with the part you want to buy. Doing so will almost always give you the same performance for LESS COST!!!

There are two variants of doing it:

1. Delete all the files from the disk a nd than rewrite it. All the data will be overwritten.

2. Use one of cleaning programs: so called cleaners.

The other name for a Floppy Disk is "Diskettes or Floppies" answer by Lloyd Gordon 1-876-471-1662

i had this problem with a toshibalaptop i just got but has no workingcdrom or floppy pretty much i justtook the drive out and stuck it intomy other laptop formated and installeddos 6.22 this works easy because dosis very simple you would prob havetrouble installing other OS's.

If you need to install something newerlike 2000 or something your best betwould be to partition the drive into2 the first being a small 5, 10mband then the 2nd being the rest ofthe drives space. install a simpledos onto the first partition thencopy the OS's setup files to the 2ndthen stick it into the computerand when it boots to dos you shouldbe able to run setup.I've never done this but shouldwork with a little bit of finesse

as far as i know there is no wayto format a drive without a osor boot disk. I've heard of a fewmachines that will boot usingthe serial port but i have no ideaif this is true I've never seen thisor researched it. good luck

you can also press F8 or F5 or what ever key to go to safe mode. then it should ask you if want to go into safe mode with MS-DOS. in there type command c:/ then format.