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Computer Terminology
CD and DVD Drives

What are pits and lands on CD-ROM?


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Answered 2009-10-17 14:43:21

All Optical media (CD, DVD, Blu-Ray etc.) have pits and lands. These are microscopic and represent the binary information of the data stored on the disc. A land is reflective and reflects the laser into a sensor to register it as a I, but when the light hits a pit, it shatters and no reflection is received, thus a O is registered. There is much confusion as to which is a pit and which is a land, even some professional texts get it wrong, but this is the way I was educated.

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What are pits and lands?

The recessed area on a CD or DVD where data is stored. CDs and DVDs store data in lands and pits. The lands represent 1 and the pits represent 0 in binary computing. The bits are read by the disc drive that uses a laser beam to distinguish between the lands and pits based on the amount of scattering or deflection that occurs when the beam of light hits the surface of the disc


The surface of a CD stores data as pits and what?

Lands


The surface of a CD stores data as pits and?

lands


On a CD the area that separates the pits is a mountain?

Flats, or lands.


What do CD's use to store data on the disks surface?

Pits and lands


What are the words used to describe where info is stored on a CD?

Pits and lands


What side of a CD contains data?

The surface of a CD stores data as pits and lands. Lands are raised areas or bumps, and pits are recessed areas on the surface; each represents either a 1 or 0, respectively.


Which side of the CD contains the data?

The surface of the CD stores data as pits and lands.


What storage medium is stored as Light reflecting from pits and lands?

Optical Storage Medium


What is the storage capacity of a CDROM?

the capacity of a CDROM is 650 MB


Is a CDROM drive an input or output device?

A CDROM drive is neither an input device or an output device. A CDROM drive is a storage device.


What does CDROM stand for?

CDROM stands for Compact Disk Read Only Memory.


Data on a ----------storage medium is stored as light reflecting from pits and lands?

Optical storage medium.


Which of the following have the largest storage capacity DVD CD-RW CDROM or a Removable Disk?

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What does CD DVD- rw dual layer mean?

dual layer means there are layers of pits and lands on the dvd


When was the CDROM patented?

1970


what does the acronym 'CDROM' means?

CDROM' is an abbreviation used widely on the internet. The true meaning of this word being "Compact Disk Read Only Memory". This refers to the disks used in computers.


Is cdroom and cdrom same thing?

There is nothing called Cdroom there is only cdrom or CDRom which means Compact Disk Read Only Memory which means data can be written only once but can be read many times


If you can audibly hear your laptop reading the XP disk in its CDROM but it does not respond and there is just a blank screen what do you do?

go to cmos and set cdrom to be first bootable disk. then click to start windows with cdrom support. ensure your cdrom is working ok. also ensure that your xp disk has autorun installed (some do not). Good Luck!!!!!!!!!!!


What is an internal CD-ROM Drive?

An internal CDROM drive is a CDROM drive designed to be permanently mounted inside a computer system.


Does cdrom mean DVD and CD?

Yepp.


How many pits are in la brea tar pits?

La Bara Tar Pits has almost all tar pits outside on the gates


What is software holder starting with letter c?

CDROM


How do you remove CD drive from dell inspiron 2200?

Flip the laptop over so that the rubber feet are facing up. Remove the screw in the center of the laptop with the picture of a lock near it. This is the only thing keeping the cdrom drive from sliding out of the laptop. If it doesn't come out easily, you may need to power up the laptop, open up the cdrom tray, power off the laptop (while the cdrom tray is still open) then repeat procedure above - however, you'll now have the cdrom tray to use as a handle to pull out the entire cdrom drive.


If a motherboard has two IDE channels how many IDE devices can be accomodated?

Each IDE connector on the board supports two channels per. (Two drives) The combination of drives can vary. For instance, hard drive-cdrom, hard drive-hard drive, cdrom-cdrom, ect....ect.


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