Random access memory (RAM)
Random access memory (RAM)
Random access memory is an extremely fast type of computer memory which temporarily stores data and machine code which is in current use
and which will be used within a short period of time.
Random access memory allows data items to be read or written extremely fast because:
-It has a very fast path to the computer's central processing unit.
-It does not have mechanical limitations such as rotation speeds and moving arms with magnetic heads.
-How it reads and writes data is different then for example magnetic storage.
The capacitor holds a high or low charge (1 or 0), and the transistor acts as a switch that lets the control circuitry on the chip read the capacitor's state of charge or change it's state.
The transistor is used to admit current into the capacitor during writes, and for discharging the capacitor during reads.
It's a form of short term memory, it can't store permanent data. And if the power shuts down, and the memory loses it's power, all the stored information will be lost.
The two widely used forms of modern RAM are: Static RAM (SRAM) and Dynamic RAM (DRAM).
-SRAM is more expensive, but is generally faster and requires less dynamic power. It is often used as cache memory for the central processing unit.
-DRAM is cheaper to produce and it is the predominant form of random access memory used in modern computers.
And more gigabytes of RAM can help with multitasking.
But you can see more improvement in the speed of your system and applications through using faster memory.
Random access memory is an extremely fast type of computer memory which temporarily stores data and machine code which is in current use
and which will be used within a short period of time.
Random access memory allows data items to be read or written extremely fast because:
-It has a very fast path to the computer's central processing unit.
-It does not have mechanical limitations such as rotation speeds and moving arms with magnetic heads.
-How it reads and writes data is different then for example magnetic storage.
The capacitor holds a high or low charge (1 or 0), and the transistor acts as a switch that lets the control circuitry on the chip read the capacitor's state of charge or change it's state.
The transistor is used to admit current into the capacitor during writes, and for discharging the capacitor during reads.
It's a form of short term memory, it can't store permanent data. And if the power shuts down, and the memory loses it's power, all the stored information will be lost.
The two widely used forms of modern RAM are: Static RAM (SRAM) and Dynamic RAM (DRAM).
-SRAM is more expensive, but is generally faster and requires less dynamic power. It is often used as cache memory for the central processing unit.
-DRAM is cheaper to produce and it is the predominant form of random access memory used in modern computers.
And more gigabytes of RAM can help with multitasking.
But you can see more improvement in the speed of your system and applications through using faster memory.
Comments
Post a Comment