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Hello to everyone. 

In this article you are going to know how to assemble a computer for different purposes in 2021. But now we are very uneducated as to what is RAM and hard disk because often we get stuck in the word. Like we have a smartphone and computer and they use to run a lot of software in RAM and software. So, we are going to take a deep dive into technology.

 

These are the parts required to assemble an entire computer

1. Processor (CPU)
2. Computer Case
3. Optical Drive (DVD RW and SATA capable)
4. Memory (RAM)
5. Power Supply
6. SATA Cables
7. Motherboard (SATA Capable)
8. Processor Fan
9. Case Fan
10. Hard Drive (SATA Capable)
11. Assortment of case and drive screws (Not Pictured)
12. Flowers (necessary if you are invading the space of your significant other

Volatile Memory

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So, Random Access Memory (RAM) is a volatile storage device A RAM chip is a microchip used as RAM storage for computers and other devices. This is the actual chip that is soldered onto small circuit boards in order to create RAM cards or sticks, and it is rated for performance and capacity differently, depending on the model and manufacturer. In the mobile device industry, the most common RAM chip used is DDR3,which has a storage capacity of 1 to 3 GB. but in computer system there are more technology like  DDR4,DDR5,AND Coming up in future may be in 2021 

RAM is essentially memory chips soldered onto a stick of circuit board. Since a picture speaks a thousand words, let's meet our RAM stick (also called a RAM module): 

RAM is blazing fast compared to hard drives - Even the latest and greatest solid state drives are embarrassingly slow when pitted against RAM. While top end solid state drives can achieve transfer rates of more than 1,000 MB/s, modern RAM modules are already hitting speeds in excess of 15,000 MB/s. 

RAM storage is volatile (temporary) - Any data stored in RAM will be lost once the computer is turned off. Comparing computer storage to the human brain, RAM works like short term memory while hard drives resemble our long term memories. 

RAM is more expensive than hard drives - Even with RAM prices tumbling to new lows with each passing year, RAM will always cost more per gigabyte. This is to be expected given RAM's massive speed advantage. 

Let's compare the average prices of RAM vs hard drives at the time of writing:  

RAM-RAM kits consist of RAM Modules. You can get just one Module or 2 Modules / 4 Modules or even 8 Modules for Motherboards that support this many RAM Modules. RAM- Corsair vengeance Crucial Ballistix Sport LT 3200 MHz DDR4 

Volatile Memory

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A hard disk drive (sometimes abbreviated as a hard drive, HD, or HDD) is a non-volatile data storage device. It is usually installed internally in a computer, attached directly to the disk controller of the computer's motherboard. It contains one or more platters, housed inside of an air-sealed casing. Data is written to the platters using a magnetic head, which moves rapidly over them as they spin. Internal hard disks reside in a drive bay, connected to the motherboard using an ATA, SCSI, or SATA cable. They are powered by a connection to the computer's PSU (power supply unit). Examples of data stored on a computer's hard drive include the operating system, installed software, and the user's personal files.

By speed, we mean the speed at which your server can both store and access data and serve it up to visitors. HDDs consist of a metal disk with a magnetic coating that stores your data. A reading arm hovers over the disk, storing and extracting data as needed. The faster the disk itself spins, the faster it can store or access data. Unfortunately, the disk can only spin just so fast before it fails, limiting the drive’s speed. 

SSDs, on the other hand, have no moving parts. They provide the same basic type of storage but can read and write data with much greater efficiency. Unlike HDDs, which have moving mechanical parts, SSDs store information in microchips, similar to a flash drive or memory stick.

What is a SATA SSD? SATA SSDs look like laptop hard drives, flat and rectangular like the Samsung pictured above. They are the lowest grade SSD and use the same interface as hard drives. However, a PC that uses a SATA SSD has three to four times the bandwidth (how much data it can read/write simultaneously) than a PC using a hard drive. SATA SSDs are also more abundant and cheaper than NVMe-PCIe ones and are still great for common applications. 

What is an NVMe SSD? One type of SSD is PCIe/NVMe/PCIe-NVMeSSDs. PCIe stands for peripheral component interconnect express, and NVMe stands for non-volatile memory express. A PC using the fastest PCIe-NVMe SSD reads and writes at four or five times the speed of a PC using a SATA SSD. As such, PCIe-NVMe SSDs are better and more expensive than SATA SSDs. To install a PCIe-NVMe SSD onto your motherboard, you'll need to buy a motherboard with PCIe slots. SSD Form Factors