What Is The Ram - Everything You Need To Know
What Is The Ram - Everything You Need To Know
ram is the random access memory that stores information a program needs while it runs. It refers to data storage that allows the stored data to be in any order at random. in contrast, other memory devices can access data on the storage medium only in a predetermined order.
Ram is a short term memory, it is very high read and writes speed so it the main component of a computer but it is a volatile memory it can't store data permanently. When the computer gets shut down the ram also deletes all data stored within it.
The computer consists of a lot of things in it the memory, ram, HDD, SSD many more. The computer needs a lot of components to run properly.
In this article, we discuss about random access memory and how it manages and it's importance in any mobile or computer. It is a random access memory of a computer or mobile device. It is a type of memory that is extremely fast for use.
It is a quickly accessible memory, that's why the memory called random access memory. When a program or application runs, its data is kept in random access memory for quick access.
It provides a lot of reading and writes speed so the processor takes all files from it as the requirement and also store inside.
check computer specifications for finding the size of RAM you have.
Table Of Contents
what is a ram in real time-example
The real-time example of RAM, imagine a person who situated on a chair the front of the person is the large library is there and the person also has a little desk on the right side of a person.
When a person starts reading a book from a library, he needs to go to the library where the book is kept. He returns their old chair and reads a book.
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| ram-real time |
When he wishes to read another book he put the book on the desk that already has in hand of a person. Then he goes to the library and reads another book as a wish. But when a person needs an old book he takes from the desk, he does not need to go to the entire library to find a book. Imagine the desk is RAM and the library is memory, this real-time example helps you to understand the function of a processor for RAM.
Type of ram
ram is available in two basic types.
- dynamic random access memory (dram)
- static random access memory (SRAM)
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| type of ram |
1.dynamic random access memory
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| DRAM |
The dram is a type of random access memory in computers. it uses memory cell which is a combination of transistor and capacitor to store each bit of binary data 0 or 1.
in the memory cell, the capacitor either charged or discharged to indicated the on or off. which signal further converted into binary number 0 or 1 to understand.
the data present in capacitors is continuously loose, to prevent this it has an external memory refreshing circuit that continuously rewrites the data in dram capacitors.
in a dram, the data refreshing is required for preventing loss of data.
dram have store the limited data even the power supply is cut off.
Advantages
- it is only required a capacitor and a transistor to store each bit of data.
- it is cheaper than SRAM.
- it is more widely used than SRAM.
- it has a very high density than SRAM.
disadvantages
- it uses very high power consumption.
- it slower than SRAM.
Uses
- it is used in digital computer devices where low-cost high computing is required.
- it also used in video game graphics cards.
- 2.static random access memory
2. static random access memory
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| SRAM |
The static random access memory is a type of memory on the computer. It is volatile, the data stored in static random access memory is accessible till power is on. When power gets off the data stored in SRAM goes deleted.
It uses the flip flop to store each bit of information. it is faster and more expensive than a dram.
The SRAM is must faster than DRAM.
SRAM is used in CPU for cache memory.
It is very expensive than a dynamic random access memory.
Advantages
1. SRAM has a simple structure.2. The performance in SRAM is very high.
3. It has low idle power usage.
Disadvantages
1. It is very expensive.2. Very high performing power consumption.
3. Density
Type of SRAM
1. nonvolatile SRAM
The nonvolatile SRAM is a non-volatile type of SRAM.The data stored in the SRAM is not deleted even when power is disclosed.
The nonvolatile SRAM used in many places where data is very important.
2. Pseudo SRAM
The pseudo SRAM is likely DRAM but not exactly DRAM.It has some features of the DRAM.
But it has the simplicity of SRAM, that reason behind that called pseudo SRAM.
DDR type of ram
the RAM is available in the same size but different types. that type called SDRAM and DDR.
The SDRAM is a synchronous dynamic random access memory.
the DDR is a double data rate SDRAM, it is available as ddr2 SDRAM, ddr3 SDRAM, ddr4 SDRAM. each DDR type of ram has a different clock speed. the speed increase as ddr2<ddr3<ddr4.
the chart of ddr type ram and its speed.
| RAM | CLOCK SPEED | TRANSFER RATE |
|---|---|---|
| DDR | 100-200 MHz | 200-400 MT/s |
| DDR2 | 200-533 MHz | 400-1066 MT/s |
| DDR3 | 400-1066 MHz | 800-2133 MT/s |
| DDR4 | 1066-2133 MHz | 1233-4266 MT/s |
importance of ram
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| IMPORTANCE OF RAM-LIFE |
the ram is a very important component on the mobile device. all apps require some space to run properly. high-end games also require a very high space of ram to run. the more space mobile device has, the more performance the device achieves.
the ram is very important for gaming because the game has very high graphics and a lot of processing. to handle this type of processing and graphics, the processor requires more ram as per game. if you play a game on pc then you need a minimum 16gb+ ram to play games without any lag or hang.
the ram is responsible for alternate memory, main memory. the ram main work is store data which can accessible at very fast speed. it has a very high read and writes speed. the speed varies as per the type of ram.
if you do not have enough ram in your device then you notice a lag or hang in your device. when the processor not able to access the required file from it because not enough space is available then it hangs.
the ram is very important on a computer or mobile device because it is the main hand of the processor.
it provides working space to the processor. if the computer does not has enough ram then it also not able to work well even impossible to work without ram.
the ram speed and size is depending on what type of work you do on your computer or laptop. when you work very high video editing and gaming then you will need to get more ram and if you need is basic then you will need less ram.
what happens when the ram is full
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| RAM-OVERLOAD |
when the ram is full, then you probably notice the lag in your phone or computer. it happens because it is the hand of the computer. it never runs without the ram. when no space in then rams then the important files need to a program to run is not accessible. the result of the program not able to run properly.
the several apps and programs present in our devices need ram to run.
the amount of ram is used by the program is dependent on program size and work.
if you are a gamer then you need more ram as compared to the basic user. the game needs more ram to run because it has a lot of processing and graphics than can run at the same time.
On your phone, the ram requirement depends on your work. if you play the high-end games then you need more ram and if you are basic users like a phone call and the multimedia player then you need less ram, but in 2020 the smartphone apps and system requirement is expanded because of that the more ram used in the smartphone. in 2020 you need a minimum of 3 GB of ram in smartphone to run the latest app smoothly.
Is ram size matter
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| RAM-SIZE VS SPEED |
The ram is divided into two parts, one is speed and second is size. Ram has different speeds as per requirement. If you choose high-speed ram then it cost is very high but low-speed ram cost less.
If you use large ram-like 8gb but it is a slower version then it does not work as well. If you have 4 GB of high-speed ram then it works over 8gb of slower ram.
In the case of ram, speed is important not size.
function of ram
the ram function is divided into two parts
1. reading files
ram is very fast as compared to SSD or HDD. when the processor needs to access any file of program it needs to access the hard drive for those files. a hard drive is a mechanical drive which rotates thousands of time per minutes, this creates some time delay to give the required file to a processor.
in case of ram, it stores the important file that's a program required to run. when the processor needs a file then it takes those files from being quick without time delay.
2. stores temporary files
ram stores the temporary files of the program that needs whenever the program opens.
if you reboot the computer the stored file in is get erased.
check how much ram your pc have
how much ram we need
in short, the answer is that, if you are a basic user then you will need a minimum of 4 GB of ram and if you are the high-end user then you will need 8 GB + ram. in this table see ram size as per work.
the ram requirement by work
| work | RAM-Requirement |
|---|---|
| basic work | 2 GB |
| 1080p Video editing | 4 GB |
| basic gaming | 4 GB |
| Large gaming | 8 GB |
| Professional (programming) | 8 GB to 16 GB |
| Ultra-high gaming and multitasking | 16 GB+ |
Uses of ram (external)
Virtual memory
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| virtual memory |
Sometimes the ram space required to a computer is very high then it needs extra ram to work properly. In this case, some of the hard drive space is converted in ram. It is not an actual ram but works like a ram. After that, if system memory is 4gb and external hard drive ram is 1 GB then the total space of a system is 5gb. The process of converting the hard drive disc space to fake ram called virtual memory.
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