CompTIA A+ Core 2 (220-1002) Exam Cram Notes

Chapter 01: Operating System
Compare and Contrast Common Operating System Types and their Purposes
 Mobile OS
 Embedded OS
 Network OS
 Real-time OS
32-bit vs. 64-bit
 The primary difference among 32-bit and 64-bit is the amount of data the processor (CPU) can process effectively. To run a 64-bit OS version, the user should have a 64-bit processor
 Another distinction between 32-bit processors and 64-bit processors is the maximum amount of memory (RAM) that is supported
 A maximum of 4 GB (232 bytes) of memory is supported by 32-bit computers, while a maximum of 18 EB (264 bytes) is supported by 64-bit CPUs
RAM Limitations
 RAM limitations are referred to the physical memory
 Physical memory is how much RAM you have installed in your computer