- Over the years the CPU manufacturers…add big chunks of capability to their CPUs.…Generically these are known as CPU extensions,…and they've been going on for years, and years, and years.…Gosh, a billion years ago they do things…like add long integer mathematics and stuff like that.…And then they would add 3D support,…and power management features, and all this stuff…that keeps adding to the capability of the CPU.…Today two of the big processor extensions…that are on the A+ exam is first of all…there's virtualization support.…
It's really cool today to take one physical computer,…load a copy of Windows on it, and then create…virtualized extra systems on there.…So literally you've got a computer with a computer.…Virtualization is great.…It really saves on power.…Instead of having four separate computers do something…you can have one computer do it.…It's nice because is a system goes does,…you can just literally restore it from a file…and it comes right back up.…But virtualization takes a lot of work on your CPU.…
Author
Mike Meyers
Released
6/28/2016The CompTIA A+ 220-901 exam is comprised of six key parts. The first, core processing, is covered by this course. Instructor Mike Meyers explains the fundamentals of PCs, microprocessors, RAM, and BIOS. He also shows you how to set up, connect, maintain, and troubleshoot the main components of a computer.
Note: The six courses designed for the CompTIA A+ (220-901) exam preparation include core processing, core hardware, peripherals and building a PC, displays and printers, networking, and laptops and mobile devices.
We are a CompTIA Content Publishing Partner. As such, we are able to offer CompTIA exam vouchers at a 10% discount. For more information on how to obtain this discount, please download these PDF instructions.
- How do personal computers (PCs) work?
- What is a central processing unit (CPU)?
- When is random access memory (RAM) used?
- What is a basic input/output system (BIOS)?
- Installing a CPU
- Working with extensions and sockets
- Troubleshooting RAM
- Setting up a BIOS
Skill Level Beginner
Duration
Views
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Introduction
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Welcome51s
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1. The Visible Computer
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Primary PC components3m 9s
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External connections11m 18s
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Inside the PC5m 30s
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2. Microprocessors
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What is a CPU?4m 29s
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CPU speeds and cores9m 12s
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CPU caches7m 48s
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32-bit vs. 64-bit processing4m 44s
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CPU extensions2m 27s
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CPU sockets12m 13s
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Installing a CPU4m 43s
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Cooling your PC6m 44s
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Liquid cooling4m 44s
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3. RAM
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RAM: Sticks and speeds10m 13s
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RAM capacity1m 56s
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Other types of RAM5m 42s
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Installing RAM5m 54s
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Troubleshooting RAM7m 48s
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4. BIOS
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What is the BIOS?4m 16s
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POST10m 47s
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System setup6m 12s
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Video: CPU extensions