Jul 18, 2016 this video will explain the different secondary storage devices available for your device for the gcse computer science course. Secondary storage devices provide a way for the computer to store information on a permanent basis. Sep 20, 2012 as compared to secondary storage units, primary storage units have less storage capacity. Input devices is the property of its rightful owner. Pen drive 12 secondary storage devices are classified into two types. As compared to secondary storage units, primary storage units have less storage capacity. A computer is an electronic device, operating under the control of instructions. Secondary storage definition of secondary storage by the. This page on traditional storage vs cloud storage covers difference between traditional storage and cloud storage. Basics of computers secondary memory tutorialspoint. Disc storage is the main facet of such systems that preserves copied files at rest, that is, even when the power to them is disconnected. Ccoommppuutter er ffununddaammenenttaallss pprradadeeeepp kk. Presentation on different types of storage devices free download as powerpoint presentation.
In this chapter, you will learn about the many types. A thin, circular plateplatter made of metal or plastic, which is usually coated on both sides with a magnetizable recording material, such as iron oxide. The three primary categories for storage devices are magnetic storage, optical storage and solid. Ppt memory powerpoint presentation free to download. Storage devices download free powerpoint presentation slides. A device that only holds information is a recording medium. Mmeemmoorryy ddeevviicceess a memory is just like a human brain. It is store the data, information, programs during processing in computer. Storage devices and hard drives this is a storage device that stores hard drives, flash drives, cds, and sim cards an external storage computer. It is also called as external storage, and can hold data either sequentially or at random.
Muhammad tayyab bilal muhammad nouman yasir abbas tajamal hussain ali hamza imran khalid 3. Free for commercial use no attribution required high quality images. Intel, advanced micro devices amd, motorola, cyrix. In this presentation there are basics of it, information and processing tools, definition o. These new types of files require secondary storage devices with much greater capacity than floppy disks. On your personal computer at home, and certainly on the computers at work, youre probably using one or more different kinds of these storage devices.
Storage devices secondary storage hard disk the hard disk drive is the main, and usually largest, data storage device in a computer. Jul 05, 20 computer memory is the storage space in computer where data is to be processed and instructions required for processing are stored. Secondary memory devices include magnetic disks like hard drives and floppy disks. Describe common storage technologies such as optical, magnetic and solid state explain the need for secondary storage select suitable storage devices and storage media for a given application and justify their choice using characteristics such as capacity, speed, portability, durability and reliability originally designed for ocr gcse. Secondary storage is not a necessity for a system to operate, but more of a convenience. A secondary storage device is also known as an auxiliary storage device or external storage. A storage medium that holds information until it is deleted or overwritten. To carry out big jobs like commercial data processing, it becomes essential that data be held in some expansive form of storage.
These units are well built and were great at keeping out moistureweather, especially during heavy rains and extremely hot days. Secondary storage devices revision worksheet teaching. Download cbse notes, neet notes, engineering notes, mba notes and a lot more from our website and app. July 99 secondary storage 2 introduction secondary storage is the nonvolatile repository for both user and system data and programs. Presentation on different types of storage devices solid. Computer memory is broadly divided into two groups and they are. Categorizing storage devices magnetic storage devices optical storage devices. Consequently, a hard drive or an additional, slower ssd may used as secondary storage to a primary, faster, pcie ssd. Any storage unit of a computer system is characterized and evaluated based on following properties storage capacity, access time, cost per bit of storage, volatile and random access. The storage capacity of primary storage is not sufficient to store the large volume so secondary storage.
Your files in drive can be reached from any smartphone, tablet. Computer memory memory is storage part in computer. External devices that engage in io with computer systems can be grouped into three categories. Selenium integrated development environment ide selenium remote control rc webdriver selenium grid selenium is a free open source automated testing suite for web applications across different browsers and platforms what is selenium. After completing this chapter you should understand. Most popular storage medium for directaccess secondary storage. Categorizing storage devices storage devices hold data, even when the computer is turned off. Tapes for archiving older versions of the data tertiary storage. Keep photos, stories, designs, drawings, recordings, videos, and more. Difference between traditional storage and cloud storage. In 1 971, ibm introd uced a technology called the floppy d isk, created by hossain raju at the beginning of the 1 980s the first optical d evices were released by sony and philips. Ppt types of storage device powerpoint presentation free to download id. Youre able to take those tapes, then, and move them off site. Hybrid memories can be read and written as desired, like ram, but maintain their.
Both of them must work together to make a computer produce a useful output. The capacity amount of data that a storage device can hold varies significantly between different devices. This video will explain the different secondary storage devices available for your device for the gcse computer science course. A secondary storage device refers to any volatile storage device that is internal or external to the computer.
Uses of secondary storage include storing various forms. Storage devices are also known as storage medias or storage medium. Consequently, a hard drive or an additional, slower ssd may used as. A storage device may hold information, process information, or both. Ccoommppuutter er ffununddaammenenttaallss pprradadeeeepp. Secondary storage is extra space, for archives such as media files. Due to their random access capability, magnetic disks are the most popular online secondary storage device. Ppt secondary storage devices powerpoint presentation. It stores data either temporarily or permanent basis. Magnetic disks optical disks floppy disks magnetic tapes disk for the main database secondary storage. It covers advantages and disadvantages of cloud storage. Hard disk speed is the speed at which content can be read and written on a hard disk. Primary memory volatile memory primary memory is internal memory of the computer. This memory is external to the cpu the computer usually uses its inputoutput channels to access secondary storage and transfers the desired data.
The memory of a computer is the most important component of cpu. Jul 01, 20 download storage devices presentation transcript. The staff was easy to get in touch with and definitely recommend for storage of anything important. Your companion for deleted files recovery in mac os x 10. It is where the system files are located, the dos, windows, or winnt folder in a microsoft operating system.
Advantages and disadvantages of secondary storage advantages possesses the capacity to store enormous amounts of information safe reliable permanent disadvantages the information on the secondary device has to be first located, then move to the primary memory or. Ppt data storage devices powerpoint presentation free to view id. Larger capacity but whose access time is slower than that of the main memory. The diagrammatic representation of the classification of. Primary storage device can store and retrieve data, as they are feed into it. Computer memory primary and secondary memory in computer. Alternatively referred to as external memory, secondary memory, and auxiliary storage, a secondary storage device is a nonvolatile device that holds data until it is deleted or overwritten. Stored a vehicle in a unit here for about 4 or 5 months during summer while waiting for a closer garage to free up.
Youre able to rotate through different tapes so that you always have a secondary backup of your data. When the main memory holds instructions and data when a program is executing, the auxiliary memory or. Now i said that a hard drive could be both primary and secondary storage. Direct access storage devices dasds magnetic disks hard disks high capacity, low cost per bit floppy disks low capacity, slow, cheap optical disks cdrom compact disc, readonly memory. Jul 03, 2017 download computer memory ppt pdf presentation. It plugs into almost any usb port in your computer and the data is erasable. Secondary storage also know as external memory or auxiliary storage not directly accessible by the cpu. It must first be copied into primary storage also known as ram. Types of secondary storage devices in computers are. Introduction to secondary storage devices aonetutors. Recording can be done using virtually any form of energy. It can be any storage device beyond the primary storage that enables permanent data storage.
Ppt input devices powerpoint presentation free to download id. Basics of computers secondary memory you know that processor memory, also known as primary memory, is expensive as well as limited. Ppt on input, output and memory devices by adrita kundu. One task requires that they label the different components of a hard drive. Units such as bytes, kilobytes and megabytes are used to describe a storage device s capacity. This article throws light upon the two types of storage devices used in a computer. Memory is an internal storage area in a computer, which is availed to store data and programs either permanently or temporarily. Learning objectives 1 to understand the purpose of secondary storage and to be able to identify examples of such devices. Other factors such as speed of data access, cost and portability will also determine which storage device. Introduction the purpose of the storage unit of the computer is to store the data entered before processing and also to store the results after processing.
The storage devices became a necessity,as the world started computerizing everything so came the need for storing information, because papers took a large space and are not permanent as they are physical the evolution started with the introduction of magnetic storage devices the surge came when tape recorder was invented in 1928 by fritz pfleumer the tape recorder casette had a magnetic. Computer memory is the storage space in computer where data is to be processed and instructions required for processing are stored. Apr 27, 2017 they are asked a series of questions that focus on optical, magnetic, and solid state storage devices. Ppt introduction to computer hardware and software. The storage capacity ranges from 128 mb to 16gb and rising. Secondary storage is for any amount of data, from a few megabytes to petabytes. You should always keep in in mind that data in secondary storage devices is not directly accessible and has to be routed through the main storage for processing. Secondary storage devices slide 598 used in a computer system to overcome the limitations of primary storage has virtually unlimited capacity because the cost per bit of storage is very low.
Storage devices and hard drives this is a storage device that stores hard drives, flash drives, cds, and sim cards see more. This contains explanations on different kind of storage medium including magnetic storage device, flash storage device etc. A free powerpoint ppt presentation displayed as a flash slide show on id. Disc storage one of the fundaments of computing technology is its ability to copy data repeatable. A newer storage device is a usb flash drive which is about the size of your car key. Ppt on input, output and memory devices by adrita kundu authorstream presentation. Dec 29, 2017 alternatively referred to as external memory, secondary memory, and auxiliary storage, a secondary storage device is a nonvolatile device that holds data until it is deleted or overwritten. Data storage has expanded from text and numeric files to include digital music files, photographic files, video files, and much more. Secondary storage devices hard disk floppy disk compact disk tape drives micro vault usb storage media 4.
The computer usually uses its inputoutput channels to access secondary storage and transfer the desired data to primary storage. Secondary storage also known as external memory or auxiliary storage not directly accessible by the cpu. Secondary storage devices are storage devices that operate alongside the computers primary storage, ram, and cache memory. Secondary storage management university of alberta.
Magnetic disks 1 secondary storage devices magnetic disks 2 secondary storage devices. Hardware and software are mutually dependent on each other. Input output devices and secondary storage input output devices and secondary storage. This can consist of items like the operating system, device drivers. The device can be external or internal to a computer, server, and other computing systems. These devices store almost all types of programs and applications. Chapter 8 secondary storage 8introduction data storage has expanded from text and numeric files to include digital music files, photographic files, video files, and much more. Can i have a look at your powerpoint presentation on storage devices please.
Secondary storage devices are essential as the size of p rimary storage or main memory in every computer is limited. Apr 01, 2012 evolution of secondary storage devices the first hard d rive was used in 1 956 which is created by ibm and whose capacity was 5 m b. As integral or separate part of an operating system, the file system manages this information on secondary storage. Secondary storage devices 1 secondary storage devices. Ppt types of storage device powerpoint presentation. Ppt types of storage device powerpoint presentation free. Secondary storage is about two orders of magnitude cheaper than primary storage.
Ppt memory powerpoint presentation free to download id. Secondary storage also known as external memory or auxiliary storagenot directly accessible by the cpu. Nov 07, 2016 enough content for 2 lessons in teacher ppt covers. Ppt data storage devices powerpoint presentation free. Following are the major difference between traditional storage and cloud. The very first roms were hardwired devices that contained a preprogrammed set of data or.
In this chapter, you will learn about the many types of secondary storage devices including their. Storage devices those devices which are used to store data, information and programs permanently. Secondary storage is nonvolatile retaining data when power is. It is the future of computer memory storage devices. Secondary storage also known as external memory or auxiliary storage, differs from primary storage in that it is not directly accessible by the cpu.