Skip to main content

What is Cache Memory?


Hi Friends,
Today I am going to tell you what is a cache memory. I hope you already heard of Cache and if you want to know what is a cache and cache memory, then read this full article. I am going to explain each and everything about Cache and Cache Memory.

What is a Cache Memory?

Pronounced as cash, the cache special high speed storage mechanism. It can be either a reserved section of main memory or an independent high speed storage device or even on CPU chip. Whenever some data is required, the CPU first looks in the cache, if it is there or not. If the data is found in cache, CPU does not access memory and hence the process becomes very fast.
The cache memory is a high speed memory available inside CPU in order to speed up access to data and instruction is stored in RAM memory. 95% of the time the processor is working, it is accessing information from cache.
In memory cache, sometimes called a cache storage or RAM cache is a portion of memory made of high-speed static RAM(SRAM) instead of the slower and cheaper dynamic RAM(DRAM) used for main memory. Memory caching is effective because most programs access the same data or instructions over and over. By keeping as much of this information as possible in SRAM the computer avoids accessing the slower DRAM.

When data is found in the cache it is called a cache hit, and the effectiveness of a cache is judged by it's hit rate.

Types of cache memory

There are three types of cache memories :
  • Level 1 (L1) cache
  • Level 2 (L2) cache
  • Level 3 (L3) cache
The L1 cache is built inside the CPU package while the L2 and L3 cache are external to the CPU and reside on the motherboard. Some systems may not have L3 cache.

Loved this post? Share with your friends on social media.

Comments

Popular posts from this blog

How do you make money by shortening links through Shorte.st?

Money values a lot to us. We can't think a life without money. We all need money for living our life that's why everyone loves money a lot.

The day's gone when peoples can only earn money offline only. But Now-a-days there are a lot of ways to earn a good amount of money online.

If you're good at writing, then you can earn money by Blogging. But Today, I am not going to talk Making money through Blogging. But today, I am going to tell a way, that needs no skill and investment. Anyone can earn through it.

The way is through shortening the links...

I'm serious, Yes you can...

Hi Friends,
Today, I will going to tell you, ‘How to earn money by shortening links’ through Shorte.st. Let's get started...


What is Shorte.st?Shorte.st is a link shortening tool developed by an European company. 
When you shorten a link through this tool and peoples click on these shorten links then you'll get income from it.
It's so simple! 
As already told you there is no skill needed to e…

Best Ways to Earn Money without any Investment

Today, there are many ways to earn money online but only few prices know the best ways to earn money online. Making money online is not a big task, if you have good skills then you can make easy money.

1. Website or Blog Blogging is the best and recommended option to earn money for long time.There are my CMS companies that allow you to start and do free blogging like, WordPress, Blogger, Joomla etc.
2. Freelancing If you have good skills in any specific fields, then you can earn a big amount by providing your services. There are many websites in this field like Freelancer, Odex, Fiverr etc.
3. Uploading & Sharing Files There are lots of PPD(Pay Per Download) sites, you just have to do is to upload your Files to these sites and you will get a link to share. When people click on your  link they will go for a survey before any download so when people complete the survey, then you get paid. Like FileIce.Net.

4. Affiliate Marketing There is another way of earning money online is . In …

What is Ethical Hacking? Who is Ethical Hacker?

We all heard of Hacking and Hackers in news. We think that Hacking is a bad thing and Hacker is a bad person. But you're not completely true. Hacking is not bad thing but when anyone Hack for a bad thing, then it's not good.

Well In this Post, we're going to tell you all about Ethical Hacking. So let's Begin...

What is an Ethical Hacker? An Ethical Hacker is a person who Have in a system or network legally, ethically and with a proper permission. Ethical Hacker is defined as a person who works for a particular organisation. An Ethical Hacker hacks into a system or a network to check out it's vulnerabilities and security problems. He also checks it's security's penetration power.
Ethical Hacker is also known as “White hat Hacker”. What is Ethical Hacking?Apart from testing works, ethical hackers are associated with other responsibilities. The main idea is to replicate a malicious hacker at work and instead of exploiting the vulnerabilities for malicious pur…