15. Computer Fundamentals - Part E
The chapter discusses various types of computer storage including DVD-ROM and USB flash drives, highlighting their capacities and functionalities. It further compares different memory types such as SRAM and DRAM, detailing their applications and performance. Additionally, the importance of secondary storage devices is emphasized in relation to primary storage needs in computing systems.
Sections
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What we have learnt
- DVD-ROMs offer significantly higher storage capacities compared to CD-ROMs, with options for single and double-layer formats.
- USB flash drives are portable data storage devices with varying storage capacities, facilitating ease of use and accessibility.
- Secondary storage devices are crucial in computing for data retention beyond what primary storage can provide.
Key Concepts
- -- DVDROM
- A Digital Versatile Disk used for storing digital data, characterized by higher storage density than CD-ROMs.
- -- USB Flash Drive
- A portable storage device that uses flash memory and connects via USB interface, known for its lightweight and rewritable nature.
- -- SRAM
- Static Random Access Memory, known for faster access times and used in applications where speed is critical.
- -- DRAM
- Dynamic Random Access Memory, requiring periodic refreshing to maintain data integrity and used for main system memory.
- -- Cache Memory
- A smaller, faster type of volatile memory that provides high-speed data access to the CPU, significantly speeding up the overall operation of the computer.
Additional Learning Materials
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