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Storing Text on Optical Disks

Image:
screenshot of the scene

Author: Little

Group: Default

Filesize: 151.99 kB

Date added: 2024-12-03

Rating: 5.6

Downloads: 6028

Views: 609

Comments: 10

Ratings: 2

Times favored: 0

Made with: Algodoo v2.2.2

Tags:
disk,
hard drive,
cd drive,
disk drive,
computer

Scene tag

Hai!
Recently, a person commented on my Optical Drive scene asking how to write Ascii to the disk.
That reminded me of a phunlet I had created shortly after publishing said scene.
It was a slight modification of the drive to work with strings!

Like usual, the disk can only hold 1.3KB. But now, it can hold data that actually means something!:D

This scene also includes a slightly modified disk that's designed to spin faster while sequentially reading/writing. (It's still extremely slow)


This drive was originally intended for use with computers, but my computers were never really intended to work with external drives, so functionality is quite funky. But, theoretically, you can plug the drive into the CPU of a computer and, granted the spring connecting the drive to the CPU is in front of the CPU, it should be able to write and boot with the optical drives. Reading doesn't really work, though.

A simple fix for this could be to remove the regular BDisk/XDisk drive from the computer, but that's a story for another day.


Anyway, yeah!
This drive uses the same protocol to communicate as the BDisk/XDisk drives from my 3 newest computers. Details in scene!


Have phun!
2017 - 2024 Little

P.S. Any part of my scenes, or the scenes in their entirety can be used with credit!

P.P.S. This description is 1343 characters long!:D
Last edited at 2024/12/04 20:20:34 by Little
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This scene is a response to:
Title Author Rating Downloads Comments Date added
Optical Drive Demo Little 5.6 (2 votes) 4634 7 2024/10/25 03:22:53
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With this technology possible, is it possible to make a disc that can run Doom?
The odds aren't great.

Each disk is made of 8 tracks, with 24 chunks per track.
Each chunk can store 8 byte, but the last byte is always used to tell the RW head where on the track it is. (note that it doesn't need to know what track it's on because the drive does that on its own!)

So, in total, one disk can store 1,344 bytes.

Some quick googling for how big the original DOOM is gave me a number of 2.39 MB -- or about 2,390,000 bytes.

Dividing this by the amount of data a single chunk can store (7 bytes), we get a total of 341,429 chunks required to store DOOM, assuming it is *exactly* 2.39 MB (which it isnt but i cant get a precise number :< )

This theoretically could be done with tons upon tons of disks (about 1,779 of them). As for a single disk, unfortunately I don't have much faith in Algodoo handling a disk with over 300 thousand parts:(

Thank you! That was a fun question to answer! :lol:
(If I was wrong about something please correct me!)

EDIT: I accidentally did the math for 239 megabytes instead of 2.39. Whoops! :lol:

EDIT 2: Fixed typos
Last edited at 2025/01/07 18:32:02 by Little
I'm no expert but I know that the file size of the game DOOM is MUCH larger than 2.3MB. That may have been the size of the original release (much lower rez and speed than today's version). Some people on Reddit and other social platforms are saying that the current versions of DOOM are many GIGABYTES! It's HUGE!
I meant the original one. Sorry for the confusion! :lol:
That's Okay. Usually I am the confused one. :lol:
Well, obviously the size AND the files would be a massive concern, but what about making it into a large hunk of binary code? Or maybe a set of hexadecimal color codes?

Either way, I don't think all three options would be possible without my potato crashing and bursting into flames ¯\_(ツ)_/¯
i gonna make an disk what makes morse code
10/10!! _o_
I like how the max limit of the drives is 10^3 + 7^3
this is really cool!