1. TRIM
TRIM is a commands to directed the appropriate firmware from the SSD. If you don't already know, firmware is the same with general BIOS computer. A storage media will always write and read data. When deleting a data, it is actually also an activity to write data. In a hard disk, data removal activity is not completely erased. Deleted data is a link that refers to these data in a series of data and called the Table Of Content. Currently there are no data that would be written in place of (sector) the same time, new data will be overwritten directly in place of the data (sector) of the old. This is called Overwriting.
In the hard disk, overwrite these activities are common. Unfortunately, not for SSDs. Overwriting activities will lead to a garbage, garbage is causing an SSD would slow down over time because the old data is still there, so make SSDs must sort out between the old data with new. This makes the SSD is slow in reading data. TRIM make sure while the operating system will write in the same sector, the old data will be totally removed without any garbage anymore. In addition, the TRIM function will also make all sectors of the deleted and formatted into the net. This would make an SSD into tight just like new.
2. The Part of SSD
Have you ever seen the inside components of a SSD? SSD does not contain the same complex mechanical hard disk. If you ever see a RAM (random access memory), the part of an SSD is similar to that. As shown at the top, SSD only consists of a set of installed memory on a board.
3. SLC and MLC
Single-level cell (SLC) and multi-level cell (MLC) Flash memory are similar in their design. MLC Flash devices cost less and allow for higher storage density. SLC Flash devices provide faster write performance and greater reliability, even at temperatures above the operating range of MLC Flash devices.
Table provides a summary of the advantages and disadvantages of SLC Flash and MLC Flash.
| Qualities | SLC | MLC |
| High Density |  | |
| Low Cost per Bit | | |
| Endurance |  | |
| Operating Temperature Range | | |
| Low Power Consumption |  | |
| Write/Erase Speeds | | |
| Write/Erase Endurance | |
4. Speed Test
Lets watch this video!
review
5. More Secure
There are some opinions that say that an SSD is more secure than the hard disk. We also have the same opinion. The first reason is that an SSD has no mechanical in it to make it resilient storage media. When slammed, the hard disk will be damaged and of course your data is inaccessible. What kind of security an SSD? Check this videos out!
video review 1
In addition to hardiness, SSD's also withstand vibration. HDD was working when exposed to constant vibration would experience mechanical damage. This is not going to happen to the SSD. In addition, you will not find a sound like this "ctek ctek ctek (?)" which will randomly be found in a HDD. What about heat issues? HDD tend to heat due to friction in mechanics, namely in his lap spindle. Hard disks are hot, of course, can make the damage: it's time to say goodbye to your data. Want to know the heat resistance of an SSD? You can see the video below.
video review 2
6. More Expensive
SSD's tend to be equal to the price expensive. Why? This is because the production of a flash memory will cost more expensive. In addition, the technology is also relatively new. SSD is a new product that cost over time will go down. The price of a SSD cheapest two years ago at a price of SSDs with a capacity of 60 GB now. For an SSD with a capacity of 30 GB of course you had to spend around Rp800.000. With the same price, you'd have to get a hard disk with a capacity of about 2 TB. The comparison is much, right? However, you must view it from different sides.
After seeing the points above, can be seen that the SSD is more secure. Imagine you are a frequent traveler with a laptop. While working on the car, suddenly there are holes that lead to your notebook fall. When it happens to a hard disk, it can make the hard disk is damaged. Not with SSD. Data that is worth millions of dollars were safe by events like this. In essence, the SSD is more resistant rock, water, vibration, and heat. Now, consider, where a much more expensive: in your data or an SSD?
source: jagadreview.com