Memory (RAM, ROM)

          The computer memory can be category two type it is RAM and ROM RAM is random access memory ROM is Read only memory and RAM is volatile and ROM is Non-volatile memory RAM or volatile memory loses its data wan the power off but ROM or non- volatile memory are not loses its memory wan the power off. The both RAM and ROM are measured in MB or GB and TB that not only that RAMs are faster than the ROMs 

RAM Types

·         DRAM (Dynamic Random Access Memory)

o DDR, DDR2, DDR3

·         Static Random Access Memory (SRAM)

ROM Types

·         Programmable read-only memory (PROM)

·         Flash Memory

Graphic card

Graphic card we is video card it contrail collate of video output when we playing games in your computer you need to set high pofomen Graphic card that Graphic card have several categories it is 

o        MCA

o        VLB

o        PCI

o        AGP

o        PCI-X

o        PCI Express

              And this Graphic card come with mother board but all mother board haven’t come this parts and we can accessible new high speed Graphic card this graphic cards and it have 2D and 3D graphics and  when that Graphic card have several capacities market it is

o 64 MB

o 128 MB

o 256 MB

o 512 MB

o 1 GB

o 2GB