What is Ram? - shan college
What is Ram?
Ram stands for (Random Access Memory) which is the hardware in a computing device where the OS application programs and data in current use are kept so they can be quickly reached by the different device’s processor. Ram is the main memory in a computer. It is much faster to read from and write to drive other kinds of storage, such as a hard disk drive (HDD), solid-state drive (SSD), or optical drive.
Ram Access Memory is volatile. That means data is retained in Ram as long as the computer is on, but it is lost when the computer is turned off. When the computer is rebooted, the OS and other files are reloaded into Ram, usually from an HDD or SDD.
The function of RAM (Random Access Memory)
Because of its volatility, RAM (Random Access Memory) can’t store permanent data. RAM (Random Access Memory) can be compared to a person’s short-term memory and a hard disk drive to a person’s long-term memory. Ram is a Short-term memory that is focused on immediate work like using applications, but it can only keep a limited number of facts in view at any one time to use. When a single person’s short-term memory fills up, it can be refreshed with acts & facts stored in the brain’s long-term memory.
A computer also works this way. If RAM (Random Access Memory) fills up, the computer’s processor must repeatedly go to the hard disk to overlay the old data in RAM (Random Access Memory) with new data. This processor slows process slows the computer’s operation.
How does RAM work?
- The term random access as applied to RAM (Random Access Memory) comes from the fact that any storage location, also known as any memory address, can be accessed directly. Finally, the term A RAM (Random Access Memory) was used to distinguish regular core memory from offline memory in motherboard.
- Offline memory typically referred to magnetic tape from which a specific piece of data could only be accessed by location the address sequentially, starting at the beginning of the tape. RAM (Random Access Memory) is organized and controlled in a way that enables data to be stored and retrieved directly to and from specific locations.
- There are many types of storage such as the hard disk drive and CD-ROM are also accessed directly or randomly use, but the term of random access is not used to describe these other types of storage devices.
- RAM is similar in concept to a set of different boxes in which each box can hold on 0 or a 1. Each box has a unique address that is found by counting across the columns and down the rows. A set of RAM (Random Access Memory) boxes is called an array, and each box is known as a cell.
- To find a specific cell, the RAM controller sends the column and row address down a thin electrical line etched into the chip. Each row and column in a RAM array has its own address line. Any data that’s read the different flows back on a separate data line.
- RAM is physically small and stored in microchips. It’s also small in terms of the amount of data it can hold. A laptop and computer may come with 8 GB of RAM, while a hard disk drive (HDD) and Solid State Drive (SSD) can hold 10 TB.
- A hard disk drive, on the other hand, picks, store and save data on the magnetized surface device of what looks like a vinyl record. Alternatively, an SSD stores data in memory chips that, unlike RAM are nonvolatile. They do not depend on having constant power and won’t lose data once the power is shut down. RAM microchips are gathered and together into memory modules. These are plugged into slots in a computer’s motherboard. A bus or a set of electrical logic paths is used to connect a motherboard slots power connect to the different processors.
- Most PCs enable users to add RAM modules up to a certain limit. Having more RAM in a computer shut down the number of times the processor must read and study data from the hard disk, an operation that takes longer than reading data from RAM. RAM access times are in nanoseconds, while storage memory access time is in milliseconds.
How much RAM do you need?
The amount of system RAM needed depends on what the user is doing. When we use any video editing, for example, it’s recommended that a system have at least 16 GB RAM, though more is desirable. For photo editing using Photoshop, Adobe Suite Software for Editing recommends a system have at least 3GB of RAM to run Photoshop CC on a Macintosh. However, if the user is working with other applications at the same time, even 8GB of RAM can slow things down.
Type of RAM
Dynamic Random Access Memory (DRAM)
makes up The typical computing device’s RAM, and he previously noted, it needs that power to be on to retain stored data. Each DRAM cell has a charge or lack of charge held in an electrical capacitor. This data must be refreshed with an electronic device charge every few milliseconds to compensate for leaks from the capacitator of the Electrical circuit. A transistor serves as an electronic gate in electronic, determining whether a capacitor’s value can read or write data.
Static Random Access Memory (SRAM)
also needs constant power to hold on to data, but it doesn’t need to be continually refreshed the way DRAM does. In SRAM, a capacitor holds the charge of the circuit, and the transistor acts as a switch, with one position serving as 1 and the other position as 0 to use. Static RAM requires several transistors to retain one bit of data compared to dynamic RAM which needs only one transistor per bit. As a result, SRAM chips are much larger and more expensive than an equivalent amount of DRAM. However, SRAM static dynamic ram is significantly faster and uses less power than DRAM. The price and speed differences mean static RAM is mainly used in small amounts as cache memory to inside a computer’s processor.