Hard Disk Drives

I would try to connect the device to another computer to make sure its not just your computer. If both computers cannot see the data there is most likely damage to the FAT (file allocation table) and/or boot record or the transport hardware in the external enclosure is going bad. If you can physically remove the harddrive from the enclosure and directly connect to a motherboard, that may be another alternative. If all this fails, you may have to contact a data recovery company or try recovering data with a freeware data recovery program (or buy one)

Hard Disks (or hard drives) are mainly used for Primary Storage. Typically most of the data on the computer, and the operating system, are stored on the harddrive. Without a hard drive or similar long-term storage, you would have to store data in RAM. RAM is volatile (temporary) memory which clears when the computer is turned off. Whereas hard drives will store data reliably without power, provided the hard drive and computer are functioning correctly.

Hard drives may also be utilized as overflow space if the computer runs out of RAM. Which harddrives are much slower (typically 50-100 MB/s) than RAM (1,600-8,000 MB/s) it is also far, far larger. Most harddrives are from 80 GB to 2,500 GB these days. This allows virtually limitless space for RAM to overflow to, and allow the system to keep functioning in the event of a RAM shortage. Computers typically only have 4 to 32 GB of RAM.

Yes, it is even enough for a NAS.

Of course ti tdepends on what you want to do with your computer. If you will be editing long high definition videos than you want a lot of storage. If you just want to surf the internet you don't need much at all, just enough for your programs.

it was invented to store data

it all depends on the harddrive size. The size of the harddrive is measured in gigabytes or gigs. Then a number like 160 (thats the size of mine) It also depends if you have an external harddrive. I hope this answered your question.

It depends on the rated size of the specific device.

The hard drive is truly a remarkable piece of engineering. It could be compared to a cross between a record player and a tape recorder.

Metal platters, coated with magnetic material, spin at up to 10,000 RPM's beneath magnetic heads. The heads actually "float" over the platter when the drive is running so as not to scrape the magnetic coating off.

The information is arranged on the hard drive in Tracks and Sectors. A track is one concentric circle, where a sector is a "pie slice".

When you save something to the hard drive, the computer looks at a special area of the drive called the FAT (File Allocation Table), and determines what sectors are currently available to save the data. The heads then are moved over the appropriate sectors, and the information is "Recorded" onto the spinning magnetic platter.

When you read something from the hard drive, the computer first looks at the FAT to see where it is saved, and then moves the heads to read the information spinning on the platters below it.

Since the hard drive is spinning so fast, care must be taken not to submit the drive to shocks or bumps. If you've ever played with a gyroscope, and seen how it reacts (kind of "wobbling" when it is bumped), the same thing can happen with a hard drive. However, that wobbling could cause the heads to make contact with the platters and scrape the magnetic coating. That can lead to the loss of data where it has been scraped off, or even worse, a head "crash", where that scraped material gets caught between the head and the platter, causing a LOT of damage and data loss.

* Note: I know that the simple track/sector analogy goes way back to MFM drives and so forth, but for the sake of simplicity, I wasn't going to get into heavy technical details about interleaving, flexible sectors per track, RLL, IDE, etc. etc. Without going into a crazy level of details, this explanation is valid.

The most common ones most people are familiar with were 1.44MB, but there were many sizes of "floppy disk" from about a hundred kilobytes to a couple hundred megabytes.

Nowadays, the answer is 1.44 for a double sided high density 3.5" floppy disk. This answer is quite different for other types of floppy disks. There are single sided, double sided, single density, double density, high density , 5.25", 3.5", and 8" floppy disks just to name a few of the many, MANY variations.

* low density capacity: 360 kbytes * hi density capacity : 720 kbytes * double hi density: 1.44 megabytes

There are other (rare) formats that can hold more.

Jumpers can do a lot of things, some motherboards have many of them. Basically they are a manual switches, that can be closed by shorting them with a jumper cap. Some examples are, jumpers that set the CPU speed, or reset the BIOS memory.

Yes, you can convert a FAT32 to and NTFS disk by formatting it from FAT32 to NTFS. All files will be removed so remember backup. Use Disk Management in XP to format. For devices right click them in My Computer.

Yes if your only looking to save small files such as documents or images.

24gb

Hard drives use what is called as the disk platter and a head for storing and reading information respectively. The platter are circular disks which hold data and the head read the data off these platters. The head is floating very close to the platters reading and writing data (using magnetism). sometimes,.the head may touch the platter, taking off the aluminum surface coat which actually stored the data, causing data corruption. Also the head needs to freely float without any jerks or air circulation movements. Thus, the hard drive is sealed internally in a air tight compartment. It also protects the platters from dusk, moisture and smoke.

It must be noted that not all hard disks work like this.

There is a data cable,and a power cable that connect the drive to your PC.

Everything is done with the data cable, there is no audio or video wires.

Generally, that would be what a server is used for. If you have an old computer laying around, you can probably reformat it and add hard drives, then install either Linux or Windows Home server.

Run Malwarebytes Anti-Malware

Run the anti spyware removal programs spybot

Run Superantispyware

Run a complete scan with free curing utility Dr.Web CureIt!

Also run rootkit revealer.

Plug in the disk you want to initialise In Windows XP/Vista: Go to Start>Run (the search box in Vista).

Type 'mmc' (without quotes).

The Microsoft Management console will appear.

Press Ctrl+M. Select the Disk Management icon from the list on the left, click 'Add>', then 'OK'.

Right click on the disk you want to initialise and select 'Initialise' from the menu.

Follow the prompts.

If unsure, go with the default values.

Though macbooks vary depending on what a person buys, the three variants of macbooks include 120, 160, and 250 gigabyte of their hard drives. This is just for the plain macbook, not for the macbook pro.

Yes, most standard hard disks are mechanical magnetic disks. Magnetic media is more of a general term for a family of disk formats including standard hard disk, floppy disks, and zip disks. In the next few years solid state disks will gradually begin to replace magnetic hard disk media.

Saving

Outer covering - protection. Disk (single or dual)- stores information written by the writer. Disk motor(measured in rpms) - spins the disk at high speeds. Writer(single, or dual per disk) - wrights information to the disk. Writer motor - moves the writer back and forth between the magnets to write the data onto the disk. Magnets - two high powered magnets that are placed just on the top and bottom (with a little space) to keep the writer free and off the disk. Board (containing power port and data port)- moves the data through wiring before it is moved to the writer.

250 3-4 minute songs can fit in 1 GB.

1 TB is 1,536 GB.

So, about 384,000 3-4 minute songs can fit in one TB.