class 4 Hardware and Software part2
Presentation
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Computers
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4th Grade
•
Medium
Ramya Vijay
Used 5+ times
FREE Resource
23 Slides • 11 Questions
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Lesson - 2
Memory and Storage
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PORTABLE STORAGE DEVICES
Hard Disk
It is the main storage medium for computers. It is fixed inside the CPU box.
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PORTABLE STORAGE DEVICES
Hard Disk
It can hold a large amount of data. Hard disk is made up of multiple disks which are further made up of hard platters of metal.
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PORTABLE STORAGE DEVICES
Hard Disk
Data is recorded on both sides of the disk. Nowadays, external hard disks are also available, which are small in size and can be carried anywhere. Hard disks can store up to 2 TB to 5 TB.
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Multiple Choice
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Multiple Choice
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PORTABLE STORAGE DEVICES
CD
CD stands for Compact Disk. It is an optical storage device. A CD is a thin, shiny, circular disk that can store up to 700 MB of data and measures 4.7 inches in diameter.
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PORTABLE STORAGE DEVICES
CD
A CD can hold text, graphics, sound, images and videos. It can be used fo data back-up and holding software.
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PORTABLE STORAGE DEVICES
CD
To access data from a CD, we need to place it in the CD drive, which is located in the front panel of the CPU box.
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Multiple Choice
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Multiple Choice
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PORTABLE STORAGE DEVICES
DVD
The full form of DVD is Digital Video Disk.
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PORTABLE STORAGE DEVICES
DVD
It is an optical storage device used for data storage and for recording movies with high video and sound quality.
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PORTABLE STORAGE DEVICES
DVD
Though a DVD is similar to a CD in shape and size, but it can store data six times more than a CD. The storage capacity varies from 4.1 GB to 17 GB.
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Multiple Select
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Multiple Choice
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PORTABLE STORAGE DEVICES
Blu-Ray Disk
It is a new optical disk format that can store 25 GB of data on its single side and 50 GB on its dual sides.
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PORTABLE STORAGE DEVICES
Blu-Ray Disk
Its storage capacity is five times more than that of a DVD. The size of blu-ray disk is similar to a DVD/CD.
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PORTABLE STORAGE DEVICES
Blu-Ray Disk
It is mainly used for storing high quality sound, games and movie data. This disk has derived its name Blu-ray disc from the Blu-violet laser, that is used to read and write data on it.
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Multiple Choice
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PORTABLE STORAGE DEVICES
Flash Drive
It is popularly known as Pen drive and the most popular data backup device.
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PORTABLE STORAGE DEVICES
Flash Drive
It is plug and play device and can be connected to the USB(Universal Serial Bus) port.
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PORTABLE STORAGE DEVICES
Flash Drive
It is a small, light weight and removable drive. It is used for copying and moving data from one computer to another.
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PORTABLE STORAGE DEVICES
Flash Drive
A Flash disk can store upto 1 TB of data, and is further planned to have its capacity upto 2 TB. Flash drives are faster in accessing data and are more reliable.
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Multiple Choice
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Multiple Choice
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PORTABLE STORAGE DEVICES
Memory Drive
A memory card is a storage medium for portable devices, like mobiles, digital cameras and music players. It can be easily removed for access by a computer.
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PORTABLE STORAGE DEVICES
Memory Drive
These devices transfer image and music files into computer by using memory card reader that can be connected to a computer through a USB cable.
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PORTABLE STORAGE DEVICES
Memory Drive
Nowadays, most of the laptops come with inbuilt card reader port.
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Multiple Choice
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PORTABLE STORAGE DEVICES
A multimedia card in a digital camera or mobile
A memory multimedia card is small in size; approximately the size of a postage stamp. Multimedia cards are available in various storage capacities ranging up to 512 GB.
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Multiple Choice
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Lesson - 2
Memory and Storage
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