CompTIA A+ 220-1001: Random Access Memory

Expected Duration
Lesson Objectives
Course Number
Expertise Level


In this course, you will explore the differences between the many types of RAM (Random-access Memory) so you are able to choose the right one for your needs. First, learners examine the Small Outline Dual Inline Memory Module, more commonly known as SODIMM, then move on to working with the Synchronous Dynamic Random Access Memory (SDRAM). Take a look at Double Data Rate 2 (DDR2) memory and learn when to use it. As technology has continued to improve, so did DDR RAM; the next iteration is DDR3, which you will explore along with DDR4, the last form of DDR, which is twice the speed of its DDR3 predecessor. Then go on to learn about memory channels, beginning with single-channel RAM, dual-channel RAM, and triple-channel RAM. Next, take a look at Error Checking and Correcting, or ECC memory — a method for discovering and correcting single bit memory errors. Finally, learn about Parity versus Non-Parity Memory and the differentiation between the two. The closing exercise involves installing different types of RAM. This course can be used to help prepare for the 220-1001: CompTIA A+ certification exam.

Expected Duration (hours)

Lesson Objectives

CompTIA A+ 220-1001: Random Access Memory

  • describe SODIMM RAM
  • work with SDRAM
  • recognize when to use DDR2 RAM
  • recognize when to use DDR3 RAM
  • describe DDR4 RAM
  • describe single channel RAM
  • describe dual channel RAM
  • describe triple channel RAM
  • recognize when to use ECC RAM
  • differentiate between parity and non-parity RAM types
  • install different types of RAM
  • Course Number:

    Expertise Level