Computer Organization and architectiure.pptx

COA unit-5

1. Computer Organization Memory By: Shwetha G MCA

2. Introduction Memory In the context of computer science, memory refers to the hardware devices used to store and retrieve data. Memory is a critical component in a computer system, impacting its performance and capability to handle various tasks. Here’s a detailed look at the different types of memory and their roles in computer systems

3. Overview Give a brief overview of what you’ll cover in your presentation.

4. History The history of memory in CPUs is a fascinating journey of technological advancements, evolving from simple, slow storage mechanisms to complex, high-speed systems that are integral to modern computing. Here's an overview of key developments . 1 st Early Memory Technologies 2 nd Magnetic Core Memory 3 rd DRAM (Dynamic RAM) 4 th flash memory 5 th CPU chips 6 th 3D NAND memory 1946 1949s 1968s 1980s 1990s 2000s ENIAC uses vacuum tubes and magnetic drum memory Jay Forrester develops magnetic core memory . Robert Dennard invents DRAM Fujio Masuoka in the 1980s, providing non-volatile storage Integration of cache memory into CPU chips . Development of multi-level cell and 3D NAND memory

5. There are various units which are used to measure computer memory Bit - Smallest unit of computer memory • Byte - 8 bit = 1 byte • Kilobyte - 1024 byte = 1 kb • Megabyte - 1024 kb = 1 mb • Gigabyte - 1024 mb = 1 gb • Terabyte - 1024 gb = 1 tb

6. Difference Between Primary Memory and Secondary Memory

7. Types of Memory Computer memory has three main types. They can be classified as  ROM , RAM , and cache . Cache memory 

8. Storage Devices There are two types of storage devices : SDD ( Solid-state drives ) HDD ( Hard disk drives)

9. Conclusion Provide a brief summary of your presentation. Remind the audience what you covered in the previous slides.

10. Questions & answers Invite questions from the audience.