What is the memory hierarchy?
Memory hierarchy is a hierarchy of memory and storage devices found on a computer. The lower part of the triangle, often visualized as a triangle, represents a larger, cheaper and slower storage device, while the upper part of the triangle represents a smaller, more expensive and faster storage device. This is often used in the theory of calculation and design, so programmers know how to manage different memory systems when creating a computer. By knowing how to manipulate the hierarchy of memory, programmers can create faster computers.
The triangle of the memory hierarchy is a visualization technique that helps consumers and programmers to understand how memory works. At the bottom are cheap storage devices with a large amount of memory such as a hard disk or magnetic tape. There is a higher memory with random access (RAM), which has medium capacity and speed. Upstairs are cache and processors that are very fast but have small capacities. The triangle is primarily organizedAccording to answers, but there is also a correlation between factors such as size, memory capacity and price.
When creating a computer, the programmer must remember the triangle of the memory hierarchy. While parts of the triangle can be manipulated, moving sections around are strictly against the rules. For example, a programmer could switch the role of a hard drive to the RAM. If this happens, the computer would be very slow to load immediate information, such as files and websites, and would be able to maintain little data for long -term storage, which would be almost unnecessary. Switching parts of the triangle is not the right way to maximize the potential of the computer.
Triangle handling in the right way is how programmers increase the efficiency of the computer. For example, if storage units are made to make them very simple, with less size and complexity, the hierarchy of memory works summerPE. Apokud, if programmers can do so that information can be processed in the higher parts of the memory hierarchy, for example using a processor instead of RAM, the computer moves faster. This does not move the section around, only optimizes them.
When visualizing the memory hierarchy, it is very simple and the memory can be manipulated to move in different sections, it is difficult to know exactly where the memory will be stored or used. Programmers must estimate this factor because several different units generally process memory at the same time, or memory can move from one section to another. Well -made programs will usually be able to predict where the memory will be stored or processed, but there is a random factor for which programmers cannot always respond, and therefore the memory hierarchy is much more smoother than the visualization of the triangle.