Internal Computer Components

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Internal Computer Components

Secondary Storage (Hard drive/solid state drive)

They are typically located in the drive bay and are connected to the motherboard using a cable in one of several different formats.

Solid state drives are much faster that traditional hard drives and will likely fully phase them out soon.

A faster hard drive can start up and load programs faster.

The data stored stays intact when turning off the computer, unlike RAM.

Stores software, documents, and other files.

Random Access Memory (RAM)

Ram can be added on to some computers through available slots in the motherboard.

Ram is in the motherboard - specifically it is usually stored outside the CPU in separate chips.

Memory speed and memory capacity are the two indicators of good RAM.

Used for processes, apps, and programs that are currently running on your computer.

Ram is wiped when your computer is turned off.

Temporary storage of memory so that it can easily accessed instead of going into long-term storage in the hard drive.

Microprocessor/Central Processing Unit (CPU)

Fits into the motherboard's CPU socket.

Inside the computer case in the motherboard.

Key performance Indicators

A CPU's performance is measured in megahertz (MHz) - millions of instructions per second - or gigahertz (GHz) - billions of instructions per second - the more instructions per second the better the CPU.

Control center of the computer - contains all the circuitry needed to process input and output results.

Sources

https://www.titancomputers.com/What-s-the-Difference-Between-a-50-Motherboard-and-a-350-s/1131.htm#:~:text=More%20expensive%20motherboards%20usually%20mean,layers%20and%20more%20robust%20construction.

https://www.avast.com/c-what-is-ram-memory#:~:text=RAM%20is%20a%20temporary%20memory,to%20complete%20immediate%20processing%20tasks.

https://www.khanacademy.org/computing/computers-and-internet/xcae6f4a7ff015e7d:computers/xcae6f4a7ff015e7d:computer-components/a/central-processing-unit-cpu#:~:text=The%20CPU%20is%20the%20brain,and%20how%20to%20process%20it.

https://www.intel.ca/content/www/ca/en/gaming/resources/power-supply.html#:~:text=A%20good%20power%20supply%20should,of%20hardware%20in%20your%20system.

https://www.cdw.com/content/cdw/en/articles/hardware/how-choose-power-supply.html#:~:text=Shop%20PSUs-,What%20is%20a%20Power%20Supply%3F,may%20not%20even%20turn%20on.

https://edu.gcfglobal.org/en/computerbasics/inside-a-computer/1/

Expansion cards

Plugs into the computers motherboard .

Compatibility is very important, as it must be compatible with the device to be installed.

Expansion cards vary but generally good expansion cards are those with higher quality parts.

There are many different kinds of expansion cards. Some of the most common are: video cards, sound cards, network cards, and bluetooth cards.

Expansion cards are used to boost the performance of a computer or to add functionality to older computers.

Motherboard

Inside the computer case - it is the biggest circuit board

Key performance indicators

More expensive motherboards generally have higher quality components such as higher quality capacitors, better power regulation components, and the PCB may have more layers and be more robust.

Every component of the computer is connected to the motherboard either directly or indirectly.

A thin plate containing the computer's CPU, RAM, hard drive and optical drive connectors, expansion cards for controlling the video and audio, and connections to its ports.

Power Supply

Location

It is located at the back of the computer, usually at the top.

Key Performance Indicators

Better PSUs generally have higher wattages.

Should have fail-safes built in.

Function

Provides fail-safes for misplaced currents and protect components during a PC crash.

Distribute power throughout the computer through wires/cables.

Converts power from a wall plug to power that can be used by the computer.