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Flash Drive

                  The Flash Drive is a small portable data storage device integrated with a USB (Universal
                  Serial Bus) connector.


                                      Pen Drive
                                      Pen drive acts as a portable hard drive and is easy to use as it is small,
                                      can be carried in a pocket and can be plugged into any computer

                                      with a USB drive. Pen drive has storage capacity of upto 1TB.
                     Pen drive

                  Memory Card
                  It is commonly known as multimedia memory card. It is very small
                  in size usually 1—1.5 inches. These are 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


                   i +  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, i.e., 1 byte equals to 8 bits. A group of 4 bits
                  is known as a nibble (half byte), for example, 1001, i.e., 1 nibble equals to 4 bits. Other
                  units for measuring the computer’s memory are kilobyte, megabyte, gigabyte, terabyte,
                  and so on.

                  •  1 Kilobyte (KB) equals 1024 Bytes.                                  1 KB  =  1024 B
                  •  1 Megabyte (MB) equals 1024 KB.                                     1 MB =  1024 KB

                  •  1 Gigabyte (GB) equals 1024 MB.                                     1 GB  =  1024 MB

                  •  1 Terabyte (TB) equals 1024 GB.                                     1 TB  =  1024 GB
                                                                                         1 PB  =  1024 TB
                  •  1 Petabyte (PB) equals 1024 TB.
                                                                                         1 EB  =  1024 PB
                  •  1 Exabyte (EB) equals 1024 PB.
                                                                                         1 ZB  =  1024 EB
                  •  1 Zettabyte (ZB) equals 1024 EB.
                                                                                         1 YB  =  1024 ZB
                  •  1 Yottabyte (YB) equals 1024 ZB.



                                                                                   #Digital Literacy
                        Let’s CatCh Up


                    Define the following:

                    a. Primary memory- _________________________________________________________________________

                    b. Memory card-       _________________________________________________________________________






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