15. Computer Fundamentals - Part C
This chapter discusses memory systems primarily focusing on types of RAM and ROM, their architectures, functionality, and applications within computer systems. It explains various forms of volatile and non-volatile memories, including DRAM, SRAM, PROM, EPROM, and flash memory, highlighting their specific features and use cases. Additionally, the chapter covers the importance of cache memory, memory expansion techniques, and their roles in enhancing system performance.
Sections
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What we have learnt
- DRAM can be categorized into several types, including FPM, EDO, BEDO, and SDRAM, each with distinct operations.
- ROM is a non-volatile memory used for permanent data storage, with various types such as mask-programmed, PROM, EPROM, and EEPROM, each having specific functionalities and applications.
- Cache memory serves as a high-speed bridge between the CPU and main memory, significantly improving data access speeds.
Key Concepts
- -- Dynamic Random Access Memory (DRAM)
- A type of memory that requires periodic refreshing to maintain data, commonly used in main system memory.
- -- Cache Memory
- A small-sized type of volatile computer memory that provides high-speed data access to the processor and stores frequently used program instructions and data.
- -- Read Only Memory (ROM)
- Non-volatile memory that retains data even when the power is off, used for firmware and applications requiring permanent data storage.
- -- Flash Memory
- A type of non-volatile storage that can be electrically erased and reprogrammed, used in USB drives and SSDs.
- -- Erasable Programmable ROM (EPROM)
- A type of programmable ROM that can be erased and reprogrammed using ultraviolet light.
Additional Learning Materials
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