Cassandra and MongoDB are both âNoSQLâ databases, but the reality is that they are very different . They have very different strengths and value propositions â so any comparison has to be a nuanced one. Letâs start with initial requirementsâ¦ Neither of these databases replace RDBMS, nor are they âACIDâ databases.
If your laptop is running on no more than 512MB of RAM with Windows XP or no more than 1GB of RAM with Windows Vista or Windows 7, you should upgrade. You'll notice a significant difference in system performance after upgrading to 2GB with XP or Vista, or to 4GB with Windows 7.
These programs will tell you what size, speed/frequncy and specification of RAM you have. Recent machines will typically have DDR2 or DDR3 RAM, and can come in various shapes, sizes and form factors (RAM for Laptops and micro machines is a smaller size of board).From Wikipedia: Top: DDR2 with heat spreader.lso, a 32Bit OS such as Windows XP will only be able to utilise up to 4GB of RAM, regardless of how much you install. â Ash Aug 6 '09 at 12:37. If you tell us what your motherboard model number and manufacturer are, we can probably tell you the max ram you can take.