Hard Disk Drives

One can buy a terabyte external hard drive at a store or on the Internet. Some stores you buy an external hard drive at is Wal-Mart and Best Buy. You can also go on Amazon to get an external hard drive.

I read 6 Terabytes which is 6,000 gigabytes

1 Terabyte is 1024 Gigabytes, so 6000 is actually incorrect.

6144 gigabytes would be correct.

144 gigabyes is enough space to store 10 or more full 1080 HD movies, so that is significant.

It uses tracks and sectors to find certain pin points on where the data is. Some of the spots are reserved for certain files.

No.

Some computers use SSD's which are similar to memory but which are non-volatile (ie. it retains information even after power has been cut off). However, they do serve the same purpose as hard drives.

In addition, very old computers (from around 20 years ago had the option of being booted and run from floppy disks, although this usually led to limited functionality.

The hard disk drive platter is used to store magnetic data or information that comes from the hard disk drive, where they are stored. The hard disk drive can contain one or more hard disk platter.

Memory in a computer system is divided into segments. The logical size of these segments varies from system to system, and from operating system to operating system. Each of these segments is assigned a unique address, which is called a memory address.

Memory addresses are commonly represented in hexadecimal format on modern computer systems. Generally speaking, many recent 32-bit operating systems, such as Microsoft Windows XP, are able to assign 32-bit memory addresses, which is 2^32 unique addresses, or 4,294,967,295 different memory locations. Each memory address (also known as memory blocks) points to one byte of data (or storage space) within the memory system. Thus, most 32-bit operating systems utilizing 32-bit memory addressing are limited to 4GB of total memory, since memory capacity beyond this has no way to be assigned an address.

Newer 64-bit operating systems, such as Windows 7 x64, that use a 64-bit memory addressing scheme (2^64) are able to address up to 16 exabytes of memory. (Note that this is considered practically unlimited in the terms of current computer memory usages.)

Thus, when a program issues a command for the CPU to recover data or instructions from memory, the CPU will locate the correct data location using the memory address assigned to the requested data. In most modern operating systems, the actual physical assignment of data and / or instructions in memory is controlled by the operating system itself.

There are many different factors that are needed to understand how much a 1tb of data can be fit into a hard drive. It would include what the resolution is and the compression, among other things. You can hold 212 movies which is 4.7GB to give you an idea.

There are many ways. One of them is to connect the hard drive to another computer and use "Disk Management" to create partitions. Also you can use software from other companies such as Partition Magic, Acronis Disk Director and so on. Also if you have windows installation CD you can start the installation process before copying any files the OS will ask you to partition your hard drive.

this changes with time. currently average storage of a hard disk is about 250 GB when purchasing a new computer. The highest amount of space I have seen on a new hard drive is 1.5 TB (that's 1024 GB * 1.5) and the smallest I have seen is down to a few MB (1024 MB = 1 GB) but that's for a very very old hard disk.

Volume

The Vertical position of all a drive's read/write heads over their corresponding platter on a specific track, forming a vertical cylinder.

Recovery disks are things that will save your tail if you get a virus or need to do a factory reset to the device. Some Computer companies do not provide them and maybe some do i recommend buying them for your computer module.

hard disk drive

There are a couple options, getting a faster hard drive, (lower seek time, higher disk speed...), make sure the disk has been "defragmented" recently, and if you really need to get some performance, try disk "striping". That should get you some speed when dealing with larger files.

Previous Answer: two types of magnetic disc are magnetic tapes and compact disc

Actually neither of the above are correct. Magnetic "Tape" is exactly that it is a tape, a long slender ribbon which comes in two formats that I know of which are "cartridge" and "reel to reel". Compact Disk is an optical media.

There are several types or formats of Magnetic Disk, sizes and capacities vary.

Fixed Disk:

Hard Disk otherwise referred to as HDD. It can have one or more disc platters made of aluminum alloy or glass with a thin magnetic layer bond. These magnetic disks or platters are sealed within the enclosure. Size 1.8", 2.5", 3.5", 5.25", 8", 12"

Removable Media:

Floppy Disk, removable disks that can be in a hard or soft shell enclosure. The disk itself is a plastic with a magnetic layer bond and is "floppy" one or both sides can be used depending on the disk. sizes range from 3.5", 5.25" to 8"

Floptical, the likes of a floppy however one side is magnetic for storage, the other is optical for head positioning. Size, 3.5"

Cartridge Disk, similar to the floppy or floptical but the cartridge actually contains a platter the likes of that within an HDD. Size 5.25", 8" that I know of.

first Hard drive is Master and additional will be set to slave.

There are several partitioning software packages available. I have used "partition magic", but that is not necessarily an endorsment, since it's an older application and I'm not sure it works on the newer drives.

The hard disk or "hard drive" is inside the computer, usually in the front. It is a rectangular object 4" wide, by 5 3/4" long, by 1" thick. It will be mounted to the "case" by 4 screws. It will have two cables attached to the back of it... on older computers, one of the cables will be flat, and wide ("ribbon cable"). On newer computers both cables will be about the same size.
Look for the soft one instead...

FDISK allows you to establish one or more partitions on the hard drive, so the drive will be ready to accept an operating system.

From the point of view of construction, yes. At some point the hard drive had to be put in the machine and integrated into the system. It's a separate component of computers. Whether or not that means it can be removed and replaced is another matter, and the techie who looks at your machine may or may not be able to R & R the unit. Certainly as a user you'll have to weigh your skills and abilities against the difficulties associated with removing the drive yourself. If the consideration is one based on "portability" of data, grab an "add-on" or external hard drive to store data you need to truck from point A to point B. It only takes a small application (software package) on a given machine to get the external drive to work with that PC. These portable units are getting cheaper and more robust every year - or every 18 months, if you believe Moore's law (as it's stretched to apply to hard drive capacity as opposed to semiconductor density, which it originally addressed). The "remove-ability" of the hard drive says nothing at all about software considerations. Far and away the most common residence of the operating system (OS) in a computer is the hard drive. No hard drive, no OS - and there's no way your machine can come up and run.

External hard drives for Mac can be found for a low price at Amazon. They have excellent reviews and for a cheap and low price that anyone can afford.

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The 'format' command will appear to erase the hard-drive HOWEVER - ALL it does is erase the reference track. The data will still be on the drive (and can be recovered). There are programs that will physically write either random characters or just zeros to every sector of the drive - over-writing all the data that was stored.