All You Need to Know About Your Ram

Random Access Memory (RAM) 08:55 TheNewTechWorld No comments

RAM stands for Random Access Memory. It is also known as read/write memory, main memory and primary memory. RAM is a temporary memory it stores data temporarily and once the power is switched off, the information in the RAM is lost. Information that is stored permanently is written to the hard drive. So RAM is known as volatile memory. Volatile means the information is lost when the computer is switched off or when power fails. RAM is measured in kilobytes (or) Megabytes (or) Gigabytes.

RAM is mainly Three types:

Static Ram (SRAM)
Dynamic Ram (DRAM)
Cache Memory

Static Ram: This is Ram provides a static storage of data. It is fast, has lower access time and Expensive.

Dynamic Ram: This is computer memory, that losses its memory capability once the power source is removed. It is slower, has higher access time than SRAM. Dynamic Ram cheaper than SRAM.

Cache Memory: It is very high speed memory that is much faster than primary memory. This cache memory is faster but more expensive to have bigger size of cache memory and its size is normally small. Data is transferred automatically between the buffer and primary storage. Cache memories are accessed much faster than conventional RAM.

Different Types of RAM Memory :

Measuring Unit of Computer: Bit : Stands for binary digit. 0 or 1 is called a bit (1 means ON, 0 means OFF). A ‘bit’ is the smallest memory unit of a computer. Byte : Stands for 8 binary digits a group of 8 bits equal to 1 byte

Term Definition : Kb – Kilobit KB – Kilobyte Mb – Megabit MB – Megabyte Gb – Gigabit GB – Gigabyte Tb – Terabit TB – Terabyte

Measuring Memory: K, Kb, KB : K (Kilo, thousand) Kb (Kilobit) one thousand bits KB (Kilobyte) one thousand bytes 1 KB equal to 1,024 bytes or 210 bytes

M, Mb, MB : M (Mega, million) Mb (Megabit) one million bits MB (Megabyte) one million bytes 1 MB equal to 1,048,576 bytes or 220 bytes

G, Gb, GB : G (Giga, billion) Gb (Gigabit) one billion bits GB (Gigabyte) one billion bytes 1GB equal to 1,073,741,824 bytes or 230 bytes

T, Tb, TB : T (Tera, trillion) Tb (Terabit) one trillion bits TB (Terabyte) one trillion bytes 1 TB equal to 1,099,511,627,776 bytes or 240 bytes

RAM Types and Definition: SIMM – Single Inline Memory Module DIMM – Dual Inline Memory Module SO-DIMM – Small Outline Dual Inline Memory Module RIMM – Rambus Inline Memory Module SO-RIMM – Small Outline Rambus Inline Memory Module SRAM – Static Random Access Memory SDR – Single Data Rate RDRAM – Rambus Dynamic Random Access Memory DDR – Double Data Rate DRAM – Dynamic Random Access Memory or Module SDRAM – Synchronous Dynamic Random Access Memory DDR-SDRAM – Double Data Rate Synchronous Dynamic Random Access Memory