Computer memory
Computer
memory, like cache, RAM, and ROM is a solid state, which means they are microchips
and they have NO moving parts.
The
different types of computer memory are used in for different purposes.
RAM is
used to store programs and data that the CPU is processing and that the user
has accessed. PCs laptops, and some game consoles generally use dynamic RAM.
This uses a type of transistor (an electrical component contained within the
microprocessors) that needs a constant electrical power source to store data.
Therefore when a computer is switched off, any data stored within the RAM is lost
(deleted).
Mobile
phones, digital cameras and some games consoles devices genrally use static RAM
(flash memory). This technology uses a type of transistor that retaines its
state (on or off), so it stores data, even after the power supply is disconnected.
Static
RAM is more expensive and physically larger then dynamic RAM, but it uses less
power and is faster which makes it more suitable for smaller portable devices.
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