SSD

Familiar to us today storage devices – hard drives, gradually sidelined new devices – solid state drives (SSD). What they have benefits?

SSD storage device – a device based on the RAM chips. Although these SSDs can be based on flash memory. Drive controller equipped with a control, and unlike hard disk, SSD have no moving parts, so it is virtually silent.

Intel SSD 320 Series 300 GB

Intel SSD 320 Series 300 GB

SSDs are most commonly used in the compact devices: laptops, netbooks, smartphones, etc., thanks to its small footprint.

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CMOS-memory and BIOS

CMOS-memory – a kind of computer memory that contains the most important information for it, for example, the current date and time, the user’s password (if, of course, is set), and similar data. CMOS-memory is a semi-permanent, because data storage is carried out even when the computer is turned off. This is possible thanks to a special computer motherboard battery.

CMOS and BIOS

CMOS and BIOS

Writing and reading information CMOS-memory is performed by teams BIOS. BIOS – this is also the memory, but the other – constant. All information is stored in it during manufacture, and can be stored there an infinite amount of time, regardless of whether the computer is on or off.

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Cache-memory: available that it is

Cache-memory – is superfast computer memory process it uses to store the files that are used most often.

Intel Itanium 2 processor cache 1.5 MB L3

Intel Itanium 2 processor cache 1.5 MB L3

For better absorption of the principle of its operation, consider the example of the library, which employs only one librarian. See, when the reader comes to the library and ask the librarian to bring him a book, for example, LN Tolstoy’s “War and Peace”, the latter rises from his desk, goes to the correct rack at the end of the hall and brings a necessary book, when the book returns, everything is exactly the same – the librarian gets up and carries “War and Peace” in the back of the room in its place, then comes back, and it happens every time this book asks a reader. By the same token the computer without using the cache provides the user files from your memory.

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Flash memory

Flash memory (flash drive) – it’s solid-state semiconductor rewritable volatile memory.

Different types of flash memory

Different types of flash memory

Retention of this type of memory is approximately 10 to 100 years. However, to record the flash memory can be a limited number of times (about one million cycles). Today is the most common flash memory, which can withstand a hundred thousand write cycles, but it is much more than can withstand CD-RW disc or a floppy.

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HDD (Hard Disk Drive)

HDD (Hard Disk Drive), hard disk or hard drive – a device designed for permanent storage of the computer. It belongs to the non-removable media.

IDE hard drive

IDE hard drive

The two major types of hard drives : IDE , SCSI and SATA .
IDE – old, kind, loyal friend. Used to this day.

SATA – also pretty good drives. They can be low-speed (5.4 thousands of revolutions per minute) and high speed (7.2 thousands of revolutions per minute). For home use is usually used one of these hard drives.

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Memory (RAM)

RAM – volatile part of computer memory that stores in all the temporary files and computer commands and thereby allowing the process to carry out the task given to him. The more this characteristic, the faster the computer. In itself, however memory can not exist, so its function performs a special technical device called random access memory, RAM abbreviated. It has a certain volume, this volume is greater than the better. After all, if you do not pay proper attention to this characteristic, the solution during computer -intensive programs, RAM may not be enough, and he will have to use part of the hard disk (swap file), it is very difficult for the system.

GOODRAM SDR 512MB 133MHz

GOODRAM SDR 512MB 133MHz

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