1 00:00:00,080 --> 00:00:01,800 Removable storage media. 2 00:00:01,820 --> 00:00:07,900 Continuing on our topic of storage media, I'd first like to start by discussing removable storage media 3 00:00:07,910 --> 00:00:12,980 as they play a role just as important as that of fixed storage media in today's world. 4 00:00:13,400 --> 00:00:15,290 Magnetic Tape drives. 5 00:00:15,440 --> 00:00:23,120 Introduced by IBM in the 1950s, magnetic tape was an easy and very fast way to store data at a speed 6 00:00:23,120 --> 00:00:25,190 equal to its processing time. 7 00:00:25,220 --> 00:00:33,050 The IBM 726 magnetic tape reader and recorder was one of the first devices to offer this storage with 8 00:00:33,050 --> 00:00:37,610 a capacity or tape density of 100 bits per linear inch of tape. 9 00:00:37,910 --> 00:00:43,880 Inch of tape should give an indicator of the size of the tape, which was wound on a large wheel similar 10 00:00:43,880 --> 00:00:45,920 to an old film roll movie tape. 11 00:00:46,550 --> 00:00:52,310 With magnetic tape, media data is written across the width of the magnetic coated plastic strip in 12 00:00:52,310 --> 00:00:55,400 frames separated by gaps consisting of blocks. 13 00:00:55,550 --> 00:01:02,130 Magnetic tape is still very much used today, and like many other storage media types, has significantly 14 00:01:02,130 --> 00:01:05,970 decreased in size while increasing in capacity and speed. 15 00:01:06,000 --> 00:01:13,380 To give an idea of how far magnetic tape storage has come in 2017, IBM developed newer tape storage 16 00:01:13,380 --> 00:01:21,810 media with a tape density of 200 guests per inch on a single cartridge, which can hold up to 333GB 17 00:01:21,810 --> 00:01:22,590 of data. 18 00:01:22,740 --> 00:01:29,460 These cartridges for older folks like myself are the size of a cassette tape, or for the younger ones, 19 00:01:29,490 --> 00:01:33,780 not much smaller than the average smartphone, which fits in your hand. 20 00:01:33,990 --> 00:01:43,200 As of 2019, Fujifilm released the Fujifilm linear tape open Ultrium eight LTO eight magnetic tape cartridge 21 00:01:43,200 --> 00:01:49,470 with a native capacity of 12 TB terabytes and a data rate of 360 maps. 22 00:01:49,710 --> 00:01:54,600 30 TB of compressed data can fit on this single 12 TB cartridge.