Tashqi qattiq disklar (External hard drives) are used to store information on computers. They come in various forms like hard disks (HDD), SSD (high capacity and fast working), USB flash drives, and external hard disks. Their capacity can range from 500 GB to several TB (terabytes). SSDs, due to their speed, often replace HDDs in many cases, but they are slightly more expensive. USB flash drives are available in sizes from 4 GB to 1 TB and are convenient for transferring data. Optical discs like CD (700 MB), DVD (4.7 GB), and Blu-ray (25 GB or more) can also store data