Storage Devices

A memory is similar to the human brain. It is used to store information and data. Computer memory is the storage space in computer where data is to be processed and instructions required for processing are kept.

The recollection is broken down into many small pieces. Each portion is called a cell. Each place or cell has a distinct address that ranges from 0 to memory size minus one.

If a machine has 64k words, this memory unit will have 64 * 1024 = 65536 memory locations. These places’ addresses range from 0 to 65535.

There are two sorts of memory.

  • Cache memory and primary/main memory are two types of internal memory.
  • External Memory − magnetic disc / optical disc etc.

When we proceed from top to bottom, we’ll see Memory Hierarchy characteristics.

  • In terms of storage capacity, there is an increase.
    The cost of storing a single bit lowers.
    The frequency with which the CPU accesses memory drops.
    The CPU’s access time increases.

RAM (Random Access Memory)

The RAM is the CPU’s internal memory for storing data, programmes, and programme results. It is a read-only memory. It’s known as random access memory (RAM) (RAM).

Because RAM access time is independent of the address to the word, each storage place inside the memory is equally accessible and takes the same amount of time. We can access memory at will and quite quickly, but it can also be fairly costly.

RAM is volatile, which means that data stored in it is lost when the computer is turned off or if there is a power outage. As a result, computers frequently use a backup uninterruptible power system (UPS). RAM is little, both physically and in terms of the amount of data it can hold.

There are two types of RAM.

  • RAM that is static (SRAM)
    RAM that is constantly changing (DRAM)
    RAM that is static (SRAM)

The term “static” refers to the fact that the memory’s contents are retained as long as power is applied. Data is lost, however, when the power goes off due to the volatile nature of the environment. SRAM chips have a 6-transistor matrix and no capacitors. SRAM does not need to be refreshed on a regular basis because transistors do not require electricity to avoid leakage.

SRAM needs more chips than DRAM for the same amount of storage space because to the greater space in the matrix, resulting in greater production costs.

Because cache memory is employed, static RAM must be both quick and compact.

RAM that is constantly changing (DRAM)

DRAM, unlike SRAM, needs to be refreshed on a regular basis in order to save its data. This is accomplished by connecting the memory to a refresh circuit, which rewrites the data hundreds of times per second. DRAM is the most common type of system memory since it is inexpensive and compact. Memory cells are the building blocks of all DRAMs. One capacitor and one transistor make up these cells.

ROM (Random Access Memory)

Read Only Memory is referred to as ROM. We can only read from this memory; we cannot write on it. This is a non-volatile form of memory. During the manufacturing process, the data is permanently saved in such memories.

A ROM holds the instructions needed to start a computer when the power is turned on for the first time; this process is known as bootstrapping. ROM chip are not only used in the computer but also in other electrical goods like washing machine and microwave oven.

Following are the numerous types of ROM −

MROM is an acronym that stands for “Multiple (Masked ROM)

Hard-wired devices with a pre-programmed collection of data or instructions were the first ROMs. Masked ROMs are the name for these types of ROMs. It is a low-cost ROM.

PROM(Programmable Read Only Memory)

A PROM is a read-only memory that can only be changed once by the user. The user purchases a blank PROM and uses a PROM programmer to programme the desired data into it. There are little fuses inside the PROM chip that are burned open during programming. It can only be programmed once and cannot be erased.

EPROM is an acronym for “electronic (Erasable and Programmable Read Only Memory)

The EPROM can be wiped for up to 40 minutes by exposing it to ultra-violet light. This is usually accomplished with an EPROM eraser. An electrical charge is trapped in an insulated gate region during programming. Because the charge has no leakage path, it is kept for more than ten years. Ultraviolet light is sent through a quartz crystal window to erase this charge (lid). The charge is dissipated by exposing it to ultra-violet light. The quartz cover is sealed with a sticker during typical use.

EEPROM (Electronic Programmable Random Access Memory) (Electrically Erasable and Programmable Read Only Memory)
Electrically, the EEPROM is programmed and erased. It can be deleted and reprogrammed a total of 10,000 times. Both erasing and programming take about 4 to 10 ms (millisecond). Any area in an EEPROM can be wiped and programmed selectively. Instead of erasing the entire chip, EEPROMs can be erased one byte at a time. As a result, the reprogramming process is versatile yet slow.

Serial Memory Access (SAM)

The system must search the storage device sequentially from the beginning of the memory address until it finds the required data. A Sequential Access Memory (SAM) or Serial Access Memory (SAM) is a memory device that allows for this type of access. Serial access memory is exemplified by magnetic tape.

Direct Memory Access (DRAM)

The term “direct access memory,” also known as “random access memory,” refers to situations in which a system can go straight to the information that a user wants. A Direct Access Memory is a type of memory that allows for this type of access. Direct access memory includes magnetic and optical discs.

Memory Cache

Cache memory is a type of high-speed semiconductor memory that can help the CPU run faster. Between the CPU and main memory, it serves as a buffer. It’s used to store the data and programmes that the CPU uses the most frequently. The operating system transfers data and programme pieces from disc to cache memory, from which the CPU can access them.

How Casino and Memory Storage Improves Your Game

Many of us have been to a casino at some time or another, whether we’ve gambled or not, and while visiting you should take some time and consider what a casino can do for you in terms of providing you with the latest in memory enhancement technology. Most casinos now have integrated sound systems, and while you’re there you should definitely keep an eye out for the speakers, especially if you are listening to music from a compact disk or something similar. Memory cards (also known as flash memory cards) are installed in many newer casinos, and they provide a great way to enhance your playing experience even more. You see, unlike regular memory cards which only last for a few moments, a casino memory card will keep playing on your card for as long as you want it to.


This type of memory storage is especially popular in online casinos as well as many high-stakes video poker games. One of the most popular uses for casino memory storage is when a player wins a big jackpot, then they have the option of retaining the winnings. Players then deposit the winnings on another card, so that they don’t lose it all. This allows the person to continue playing and winning, thus increasing their bankroll. In fact, many experts at https://www.casinowebsites.com/uk/ believe that a constant flow of new money into the pockets of gamblers helps keep the game alive and well.


Gamblers are not the only ones who benefit from casino and memory card storage. Many tournaments now use these types of cards, and even a good portion of the high stakes games at many land based casinos do so. The reason is because it makes the game more fair, and also keeps the competition between players much more even. Many times a player may be up against someone who has a lot more cash than them, and by having access to a second card just like the one they lost the first round with, that player will be less likely to be able to capitalize on that loss and take the series. Memory cards are also handy in other situations where there may be long periods of inactivity (for example, waiting for the computer to update before starting to play).