Digital Electronics - Vol 2 | 15. Computer Fundamentals - Part C by Abraham | Learn Smarter
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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

  • 15.5

    Dram Memories

    This section discusses the different types of DRAM memories, their applications, and the role of DRAM in cache memory systems.

    Learning Practice

  • 15.5.2

    Types Of Dram

    This section classifies various types of DRAM, highlighting their operational differences and features.

    Learning Practice

  • 15.5.3

    Ram Applications

    This section discusses the primary applications of RAM, particularly its role in cache memory and main memory within a computer system.

    Learning Practice

  • 15.5.3.1

    Cache Memory

    Cache memory is a crucial component that enhances the speed of data access between the CPU and main memory by storing frequently accessed data.

    Learning Practice

  • 15.6

    Read Only Memory

    ROM is a nonvolatile memory used for permanent data storage, retaining contents even when powered off.

    Learning Practice

  • 15.6.1

    Rom Architecture

    ROM architecture includes three main components: memory cell array, address decoder, and output buffers, crucial for understanding how data is organized and accessed.

    Learning Practice

  • 15.6.2

    Types Of Rom

    This section discusses various types of Read-Only Memory (ROM) based on how information is programmed and erased.

    Learning Practice

  • 15.6.2.1

    Mask-Programmed Rom

    Mask-programmed ROM is a type of read-only memory that is pre-programmed at the manufacturer’s site using a photographic mask, making it economically viable for large quantities but immutable after programming.

    Learning Practice

  • 15.6.2.2

    Programmable Rom

    This section discusses Programmable Read-Only Memory (PROM), which can be programmed by users and offers a one-time programmability feature.

    Learning Practice

  • 15.6.2.3

    Erasable Prom

    Erasable PROMs (EPROMs) are non-volatile memory devices that can be erased and reprogrammed multiple times.

    Learning Practice

  • 15.6.2.4

    Flash Memory

    Flash memory is a high-density, nonvolatile memory that allows for rapid read and write operations, combining features from UV EPROMs and EEPROMs.

    Learning Practice

  • 15.6.3

    Applications Of Roms

    This section discusses the various applications of ROMs, emphasizing their role in non-volatile data storage for firmware and other functions in microprocessor systems.

    Learning Practice

  • 15.7

    Expanding Memory Capacity

    This section discusses methods to expand the capacity of RAM and ROM beyond a single chip by utilizing multiple chips for increased word size or memory locations.

    Learning Practice

  • 15.7.1

    Word Size Expansion

    Word size expansion involves combining multiple memory chips to increase the word size of available RAM.

    Learning Practice

References

chapter 15 part C.pdf

Class Notes

Memorization

What we have learnt

  • DRAM can be categorized int...
  • ROM is a non-volatile memor...
  • Cache memory serves as a hi...

Final Test

Revision Tests