5.25 inch floppies!

The widespread size of 5.25 floppies are 360kb (180 on each sides). The 1.2m floppies are a little bit of an oddball, and they were only supported on the final 5.25 inch floppy drives.

@Geri: Yeah - I was kind of aware of all this.... It's just there is SO much to remember, over some extraordinarily large amounts of time, AND most of it just isn't worth remembering..... The great leaps forward..... in storage capacity, read / write speed, size of the media, and $ per unit of data stored..... Forinstance there was the whole range of floppy disks, they became smaller, held more and more data, then came zip drives, CD's, DVD's, Blue Ray, and and and and...... now look what we have, from the maximum on the current market to what the average consumer is buying.....

@Life_N_Times_of_Shane_T_Hanson: Flash drives and microSD cards. Yep!

@Life_N_Times_of_Shane_T_Hanson: A little war at the wrong place, and suddenly the world is back to DVDs for another decade :D

@Geri: I come from beyond the time when you could buy computer kits, TRX 80 / Comodore / Amiga ??????? And you bought all the components and soldered them together yourself...... and used cassette tapes or punched cards to store the programs on.....

I mean it's fascinating - and even today there are many advantages and disadvantages to EVERYTHING - both old and new... Punched paper cards.... almost indestructable - last for decades..... SLOW as fuck to make, load and use...... I really wish I could have a memory wipe - and just forget about all of this once upon a time technology... for the most part it just clutters up the mind.

@Geri: CD's then DVD's and their speeds - 4x 8x 16x 32x and 64x - for a little while then the disks started exploding in the drives.... then came double sided, double layers, then came shorter wave length lasers.... higher data density..... So just say a single side single layer DVD held 1.2 Gig.... then the double layer and double sided disks held - 4.8 Gig.... I am not going to look it up to make sure the data is exacting and my memory is fading...

https://en.wikipedia.org/wiki/Floppy_disk

@Life_N_Times_of_Shane_T_Hanson: The single sided single layer DVD is 4.4gb so its still actually usable for transporting data. Dual layer DVD R is 7.5gb. Sadly, no dual layer DVD RW exists, and the dual layer dvds are less durable and reliable compared to the single layer versions, so those are not recommended to use them. Dual side DVD discs exists only in theory, i havent seen any in pratcice just yet. I am thinking on making a similar video on DVD RW discs if someone is interested.

@Geri: Thanks for the correction and update - but my mind is cluttered with endless amounts of information that belongs in the past. I have had CD and DVD burners that do double sided and double layer CD's and DVD's - the double sided double layer disks were excessively expensive as I recall and I used to buy DVD's on spindles of 50 or 100 disks..... and now 10, 15 or 20 years later - you can't find them anywhere. The Flash Drives - on the basis of cost, storage capacity and read write speeds, along with high speed internet - have reduced the DVD's to a redundant and oselete technology. There was also the +R and -R and Rewritable ---- I recall the double sided - double layer disks were very short lived in the retail market.... https://www.ebay.com/itm/187186875988 ------ https://www.ebay.com/itm/146400250095 ------------- https://www.ebay.com/itm/146055702782 ------------ https://www.ebay.com/itm/355832482044 -------------- Yeah look I don't want to talk about this subject any more..... To me it is history and I am not enthusiastic about non productive subjects. Please don't reply or comment or ask or expect me to continue in this.... I have enough work to do already.

Hello, those disks are 1.2mb, thats the actual capacity. Similarly, 1.44mb disks are sometimes marketed as 2.0 MB disks.

@Geri: Ah. Interesting. I've never heard of 1.44MB 3.5" disks referred to as 2MB disks.

@Shin: for example 3M did it sometimes: https://i.ebayimg.com/thumbs/i....mages/g/UcUAAOSwzJ5X