What are the 2 types of memory architecture?
Computer memory is of two basic types – Primary memory(RAM and ROM) and Secondary memory (hard drive, CD, etc). Random Access Memory (RAM) is primary-volatile memory and Read Only Memory (ROM) is primary-non-volatile memory. It is also called read-write memory or the main memory or the primary memory.
What is memory hierarchy design?
In computer architecture, the memory hierarchy separates computer storage into a hierarchy based on response time. Designing for high performance requires considering the restrictions of the memory hierarchy, i.e. the size and capabilities of each component.
What is 2 level memory?
two-level memory A memory system with two memories of different capacities and speeds. See multilevel memory, memory hierarchy.
What is cache mapping?
Cache mapping is a technique by which the contents of main memory are brought into the cache memory. Different cache mapping techniques are- Direct Mapping. Fully Associative Mapping.
What is the goal of memory hierarchy?
In Computer Architecture, Memory hierarchy is a hierarchy of memory and storage devices. Memory Hierarchy Diagram. It’s purpose is to minimize the average access time of the entire memory system.
What are the characteristics of a memory hierarchy?
This Memory Hierarchy Design is divided into 2 main types: Comprising of Magnetic Disk, Optical Disk, Magnetic Tape i.e. peripheral storage devices which are accessible by the processor via I/O Module. Comprising of Main Memory, Cache Memory & CPU registers.
What are the two main types of memory?
This Memory Hierarchy Design is divided into 2 main types: External Memory or Secondary Memory –. Comprising of Magnetic Disk, Optical Disk, Magnetic Tape i.e. peripheral storage devices which are accessible by the processor via I/O Module.
Why does access time increase in a hierarchy?
As we move from top to bottom in the Hierarchy, the access time increases. Earlier when the computer system was designed without Memory Hierarchy design, the speed gap increases between the CPU registers and Main Memory due to large difference in access time.
Which is the main memory L1 or L2?
L1 Cache L2 Cache L3 Cache Main Memory Hard Drive or Flash Capacity (KB, MB, GB, TB) Copyright © 2012, Elsevier Inc. All rights reserved. 5 PROCESSOR L1: I -Cache D Cache L2: U-Cache L3: U-Cache Main: Main Memory
