Memory
Memory which is found inside your computer is where data is stored. Memory is can not only be found in PC's but laptops, tablet and Mobile phones. Memory is essential to most devices. Every computer or device has memory its essential. Memory in a computer is like a filing cabinet really it has different sections which store information each file for example holds certain bytes of information depending on the size of file or information.
The image to the left shows the structure of memory. I will next be looking into the types of memory within a computer device.
Memory which is found inside your computer is where data is stored. Memory is can not only be found in PC's but laptops, tablet and Mobile phones. Memory is essential to most devices. Every computer or device has memory its essential. Memory in a computer is like a filing cabinet really it has different sections which store information each file for example holds certain bytes of information depending on the size of file or information.
The image to the left shows the structure of memory. I will next be looking into the types of memory within a computer device.
First lets look at RAM. Its is short for random access memory. Any byte of information/memory can be accessed without touching other bytes. This type of memory is normally used in computers, printer and other devices.
There are three types of RAM:
DRAM ( Dynamic Random Access Memory)
SRAM (Static Random Access Memory)
RDRAM (Rambus Dynamic Memory)
DRAM is the more common of the two types. It has to be refreshed all the time many times per second. SRAM however is faster. It never needs to be refreshed this is why its faster than DRAM.
60 nanoseconds are supported by DRAM access times where as SRAM has access times upto 10 nanseconds. SPRAM although is faster it can be expensive that's why SRAM is used.
RDRAM is a memory subsystem that can transfer data at up to 1.6 billion bytes per second. This system consists of RAM, a RAM control and a address bus the path needed to connect the RAM to the microprocessor and other devices if needed.
RAM is the main memory its a temporary data storage available to programs. If your computer has 8MB RAM you will get roughly 8 million bytes of memory to use. ROM read only memory refers to s type of memory which is used to store boot programs that the computer uses to run diagnostics. Personal computers only have a small amount of ROM.
The computer moves files and store them into its RAM this makes it easier to find as it doesn't have to search through the whole drive to find it. The memory is temporary as once you shut it down all the data within is deleted or moved to the hard drive. This is done as it creates more room for new data when started up. The RAM is then refreshed this keeps the RAM fresh.
There are three types of RAM:
DRAM ( Dynamic Random Access Memory)
SRAM (Static Random Access Memory)
RDRAM (Rambus Dynamic Memory)
DRAM is the more common of the two types. It has to be refreshed all the time many times per second. SRAM however is faster. It never needs to be refreshed this is why its faster than DRAM.
60 nanoseconds are supported by DRAM access times where as SRAM has access times upto 10 nanseconds. SPRAM although is faster it can be expensive that's why SRAM is used.
RDRAM is a memory subsystem that can transfer data at up to 1.6 billion bytes per second. This system consists of RAM, a RAM control and a address bus the path needed to connect the RAM to the microprocessor and other devices if needed.
RAM is the main memory its a temporary data storage available to programs. If your computer has 8MB RAM you will get roughly 8 million bytes of memory to use. ROM read only memory refers to s type of memory which is used to store boot programs that the computer uses to run diagnostics. Personal computers only have a small amount of ROM.
The computer moves files and store them into its RAM this makes it easier to find as it doesn't have to search through the whole drive to find it. The memory is temporary as once you shut it down all the data within is deleted or moved to the hard drive. This is done as it creates more room for new data when started up. The RAM is then refreshed this keeps the RAM fresh.
Differences between RAM and ROM:
RAM (Random Access Memory)
RAM' memory is only available when the computer is running so the programs operating systems and process use it. To use RAM you need to electricity to retain data - so power needs to be turned on. RAM is classes a volatile memory. The data when the power is off is not constantly written.. RAM two types has DRAM and SRAM,
ROM (Read Only Memory)
ROM is the memory that has been preset/ pre-written this contains instructions for booting up your PC.ROM unlike RAM retains data once the power is turned off. Its also known as non volatile memory as after power is turned off the data is not erased it permanently there. ROM has three types of data PROM program read only memory this is left black exampled of this are CD ROM's and the other is EPROM (erasable programmable read-only memory).
RAM (Random Access Memory)
RAM' memory is only available when the computer is running so the programs operating systems and process use it. To use RAM you need to electricity to retain data - so power needs to be turned on. RAM is classes a volatile memory. The data when the power is off is not constantly written.. RAM two types has DRAM and SRAM,
ROM (Read Only Memory)
ROM is the memory that has been preset/ pre-written this contains instructions for booting up your PC.ROM unlike RAM retains data once the power is turned off. Its also known as non volatile memory as after power is turned off the data is not erased it permanently there. ROM has three types of data PROM program read only memory this is left black exampled of this are CD ROM's and the other is EPROM (erasable programmable read-only memory).