answersLogoWhite

0

When a disk is formatted or reformatted, everything previously on the disk is lost.

'Memory' in computer terms does not usually refer to the data that is on a separate disk. In the computer system there are various forms of 'memory'...

  1. At the highest level there is the data stored in the internal registries.
  2. Next there is a processor cache of memory.
  3. Next there is 'Random Access Memory' (RAM). This is in the form of a special slot-in unit in the PC.
  4. Then there is the hard-drive. This also serves as memory. It holds the programmes and related input and output data. The hard drive has its own 'disks'. If you format or re-format your hard drive you will lose everything! Don't do it! (Formatting a hard-drive disk should only be done by someone who knows what they are doing!)

Data can also be stored on extra drives, internal or external, and can take various forms, e.g. other hard-disks, 'flash drives', USB memory sticks, etc. These devices are used to store of various types of data such as pictures, music, text files, spreadsheets etc. Data stored in this way is a form of 'memory'.

Formatting or re-formatting one of these storage devices will destroy all the data that was previously on it. 'Formatting' wipes a disk clean of data, and divides its storage capacity into many sectors to enable future data to be readily stored and accessed in an organised way.

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

How much memory is lost as you get older?

Eerm, sorry what was the question?


Can a worksheet have too much formatting?

It depends on your purpose. Sometimes too much formatting (e.g. too many different colors) is distracting to the viewers. Deciding on how much formatting you use is the artistic and functional part of designing a worksheet.


How do you play nazi zombies on cod5 for Wii?

You Can't, Because The Wii Isn't As Good As The PS3 Or Xbox 360, And The Disc Can't Hold As Much Memory. Im Just As Disaponted


What is the disadvantage of DVD-D?

There are a few disadvantages of DVD-D. The biggest disadvantage is that it holds much less memory than a Blu-ray disc, and therefore has lower picture and sound quality.


What happens if you format an External Memory Card?

A memory card will be formatted to the system you format it on. The card will only work with the system it is formatted to, you may or may not get an error when you use a system that is not formatted to. Generally, it doesn't do much but some systems require formatting. Most times it erases all data, and replaces it with formatted files


How much does a new camcorder cost?

Depending on the features and brand desired, a new video camera costs from 250-400 dollars right now. Features to look for are HD recording built-in memory and expandable memory functions and their combatibility with the PC and other disc burning software.


How much memory does a internal memory have?

lots!!


How much is it to buy a GameCube memory card?

it depends on how much memory it holds


How much does a disc weigh?

0.035 pounds


How much memory does Xbox live need?

how much memory does xbox live need/


How much memory does a 2gb memory card hold?

Not much on anything, but that depends on what you are using.


What is an advantage of loading an application entirely into RAM rather than loading part of that application into virtual memory?

CPU works directly with the RAM and any memory i/o on the RAM by the CPU is a solid state operation where no mechanical devices are involved. Therefore data operations with RAM are very fast. Virtual memory on the other hand has a portion on the RAM and a portion on the disc that cannot be accomodated in the RAM. This is because virtual memory is much larger than the RAM or even the address space available to the CPU. The virtual memory manager manages loading the data page from the disc and back. When a program needs a portion of data that is in the virtual memory, the virtual memory manager checks if the data is in a page that is already loaded on the RAM. If it is, then it simply hegabs the virtual memory address with the physical address on the RAM so that the program can access the memory. If the data is on a virtual address that is not on the RAM, Lol, the page that contains the portion of the data needed is loaded from the disc onto the RAM and placed in an empty slot that is available so that the virtual address could be converted to a physical address that is on the RAM. However the process of loading the page from the virtual memory involves seeking th page on the disc and loading it onto the ram. It may also involve making space available on the RAM if there is no empty slot found and for that a page needs to be unloaded from the RAM and putting it onto the disc which adds to another disc i/o operation. Thus explains why having the data accessed and operated on the RAM is much faster than Disc i/o. Now-a-days some computers do come with Hard disks that are completely electronic. Virtual memory operations will be much faster with such Hard disk drives. However the process of virtual to physical translation and paging shall still be required.