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Memory Card
                                  Memory Card is commonly known as multimedia memory card. It is very
                                  small in size  usually  1—1.5 inches.  It is  used  in mobile  phones  and  digital
                                  cameras.  You need  to  have a card reader to  read the stored  data  on a

                  Memory card     memory card.

                 Solid State Drive (SSD)

                 An SSD is a type of storage device that holds information, like your
                 pictures, games, and documents. An SSD uses the technique of flash
                 memory to store data. It is much faster than a hard disk. SSDs are more
                 durable and reliable than hard disks. They come in various capacities,
                 typically 128 GB to several TBs. Nowadays, desktop computers and                       SSD
                 laptops come with SSD instead of traditional hard disk.


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                  Let’s Practice                                                              Century   #Technology Literacy
                                                                                                Skills
                   Visit your computer lab and find out what storage devices are available and also check
                   how much storage it displays. Do this under your teacher's guidance.




                                    Suppose, you could create a virtual memory palace in your mind using a
                                    computer. What rooms and objects would you include to help you remember
                                    important information, like math formulas or historical facts?





                        MEASURING THE COMPUTER’S MEMORY


                 The basic unit for measuring the memory of a computer is byte. A byte consists of a group of
                 eight bits, for example, 10001011 has 8 bits or 1 byte. A group of 4 bits is known as a nibble
                 (half byte), for example, 1001 has 4 bits or 1 nibble. Other units for measuring the computer’s
                 memory are kilobyte, megabyte, gigabyte, terabyte, and so on.

                   1 KiloByte (KB) equals 1024 bytes.

                   1 MegaByte (MB) equals 1024 KB.
                   1 GigaByte (GB) equals 1024 MB.

                   1 TeraByte (TB) equals 1024 GB.

                   1 PetaByte (PB) equals 1024 TB.

                   1 ExaByte (EB) equals 1024 PB.

                   1 ZettaByte (ZB) equals 1024 EB.

                   1 YottaByte (YB) equals 1024 ZB.

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