STORAGE DEVICES AND TYPES OF STORAGE .pptx

A power point on storage devices

1. STORAGE DEVICES TAGORE GOVERNMENT COLLEGE OF EDUCATION PRESENTED BY R.SOUMIYA PEDAGOGY OF COMPUTER SCIENCE B.Sc B.Ed 3 rd year

2. INTRODUCTION The storage unit is a part of the computer system which is employed to store the information and instructions to be processed. A storage device is an integral part of the computer hardware which stores information/data to process the result of any computational work. Without a storage device, a computer would not be able to run or even boot up. Or in other words, we can say that a storage device is hardware that is used for storing, porting, or extracting data files. It can also store information/data both temporarily and permanently.

3. DEFINITION A hardware device which can be used to store digital data and applications which may be in the form of images, video, audio, etc. is called a storage device. It is a key component of a computer and the hard drive is one of its examples. 

4. TYPES OF COMPUTER STORAGE Primary storage Secondary storage Tertiary storage

5. PRIMARY STORAGE This is the direct memory which is accessible to the Central Processing Unit (CPU ). This is also known as the main memory and is volatile.  This is temporary. As soon as the device turns off or is rebooted, the memory is erased.Examples of primary storage include RAM, cache memory, etc.

6. SECONDARY STORAGE This type of storage does not have direct accessibility to the Central Processing Unit.It is non-volatile and larger storage capacity in comparison to primary storageExamples of secondary storage are USB drives, floppy disks, etc.

7. TERTIORY STORAGE This type of storage holds robotic functions. It does not always require human intervention and can function automatically.

8. LIST OF STORAGE DEVICES Primary Storage Devices Magnetic Storage Devices Flash memory Devices Optical Storage Devices Cloud and Virtual Storage

9. PRIMARY STORAGE DEVICES Primary storage devices are the media that hold memory for a shorter period of time when the computer is running . RAM and cache are two examples of primary storage devices. It is also known as main memory, primary memory, internal memory and main storage .

10. MAGNETIC STORAGE DEVICES A magnetic storage device is a device that uses a magnetic medium to store data. A magnetic medium is a material that can be magnetized by an external magnetic field and retain its magnetic state after the field is removed.

11. FLASH MEMORY DEVICES Flash memory devices are solid-state storage chips that can store data even when the power is off. They are a type of nonvolatile memory. Some of the commonly used flash memory device are SSD , Pen drive , SD Card , Memory card .

12. OPTICAL STORAGE DEVICES Flash memory devices are a type of non-volatile memory that can store data even when the power is turned off. Flash memory devices use electrically erasable programmable read-only memory (EEPROM) technology, which allows them to write and erase data by applying electrical signals.  Flash memory devices are widely used in various electronic devices, such as mobile phones, PCs, laptops, digital cameras, smart TVs, USB drives, memory cards, memory sticks and SD cards.

13. CLOUD AND VIRTUAL STORAGE DEVICES Cloud storage: The term Cloud computing is related to the data centers available for users over the Internet where they can collect their databases and files. It offers users reliability, durability, confidentiality, and access to data or information from anywhere and anytime. This has become a popular model to store data. Schools, businesses, and individuals can benefit from cloud computing due to its ease of uploading and downloading data, making it easily manageable to share information locally and globally . Some common examples of cloud computing are Amazon Web Services(AWS), Adobe Creative Cloud, Google Calendar, Google Drive, Windows Azure, etc

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