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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

                      It acts as a portable hard drive and is easy to use as it is small and can be
                      carried in a pocket and 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
                      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 laptops come with SSD instead of traditional
                      hard disk.

                                                                      SSD

                       Let’s PraCtiCe                                                                   Experiential Learning

                        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.

                             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.

                      50    Premium Edition-VII

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