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.
Related Reading: How to Increase the Fan Speed on a Laptop. Step 3. Determine whether your CPU is a candidate for replacement. A number of laptops have CPUs that are soldered to the motherboard, making them impossible to swap -- or, at the very least, not generally worth the risk and/or expense.