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This definition is part of our Essential Ram essay How to choose the best hardware for virtualization Share this item with your network: RAM is the main memory in a computer, and it is much faster to read from and write to than other kinds of storage, such as a hard disk drive HDDsolid-state drive SSD or optical drive.
Random 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.
Short-term memory is focused on immediate work, but it can only keep a limited number of facts in view at any one time. A computer also works this way.
However, the combination of RAM and storage memory can be completely used up. How does RAM work? The term random access as applied to RAM comes Ram essay the fact that any storage location, also known as any memory address, can be accessed directly. Originally, the term Random Access Memory was used to distinguish regular core memory from offline memory.
Offline memory typically referred to magnetic tape from which a specific piece of data could only be accessed by locating the address sequentially, starting at the beginning of the tape. RAM is organized and controlled in a way that enables data to be stored and retrieved directly to and from specific locations.
RAM is similar in concept to a set of boxes in which each box can hold a 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 boxes is called an arrayand 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.
RAM is physically small and stored in microchips. A typical laptop computer may come with 8 gigabytes of RAM, while a hard disk can hold 10 terabytes.
A busor a set of electrical paths, is used to connect the motherboard slots to the processor. A hard drive, on the other hand, stores data on the magnetized surface of what looks like a vinyl record.
Having more RAM in a computer cuts down on the number of times the processor must read data from the hard disk, an operation that takes longer than reading data from RAM.
RAM access time is in nanosecondswhile storage memory access time is in milliseconds. Each DRAM cell has a charge or lack of charge held in an electrical capacitor.Eden a l ouest critique essay history of special education law essay writer research paper on obesity epidemic in us the metropolitan museum of art thematic essays essay for romeo and juliet love vs hate why do we sleep research paper pdf.
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SB Computers is a computer retailer based in Castle Hill, Sydney, NSW, Australia.
Ram Essays: Over , Ram Essays, Ram Term Papers, Ram Research Paper, Book Reports. ESSAYS, term and research papers available for UNLIMITED access. The computer has a short-term memory unit known as Random Access Memory or RAM for short.
RAM holds all of the most recent information displayed on the computer. Unlike the Hard Drive RAM cannot be written to/5(3).