Time
8 hours 53 minutes
Difficulty
Beginner
CEU/CPE
11

Video Transcription

00:05
So how do we guard against electrostatic discharge?
00:09
Whatever you're handling any internal components, it's a good idea to make sure you are discharged. One quick way of doing that would be to touch a metal pipe
00:17
or any device that's already plugged in and grounded like most desktop computers. So you could just walk up to an existing desktop computer that's plugged in and just touch some bare metal. Part of it,
00:29
Um, also things like water taps at a sink. Touch those, and that probably will discharge you as well.
00:36
If you're going to be working for a prolonged period, though, inside a computer you want to be constantly discharged.
00:43
In this case, you could wear an anti static wrist strap that goes around your wrist,
00:48
and then there's a wire coming from it and a crocodile clip.
00:52
You attach that crocodile clip to something that is already grounded,
00:56
such as a water pipe or another PC, that is computer that is already planted to the mains,
01:07
the subject of ergonomics and its importance with computing.
01:11
Firstly, what is ergonomics? While the International Ergonomics Association defines it as
01:18
a scientific discipline concerned with the understanding of interactions among humans and other elements of a system.
01:26
Now, specifically,
01:26
what we're talking about here
01:30
is the physical relationship between us
01:33
on the computers and displays and keyboard and mouse that we're going to interact with when working with computers.
01:42
So why do we even worry about this? Because bad posture when you sit at a computer for eight or more hours per day
01:52
and, for example, if your wrists are at an inconvenient angle if your back is not straight and so on, this can lead to many health problems.
02:01
For example, repetitive strain injuries are caused by
02:06
constant, repetitive actions, like typing on a keyboard or using a mouse.
02:10
Muscular skeletal disorders, aches, pains and damaged are due to incorrect posture or lack of support for sensitive areas.
02:22
And if you're interested,
02:23
here's a short list off injuries that can result from bad economics,
02:29
so you might want to look a few of those up.
02:35
So what kind of things should you watch for?
02:37
Well, firstly, your chair should be adjustable, so you can set it at the right height.
02:42
Had
02:44
it's
02:45
lumber support should be sufficient to support the small of your back so that you can sit upright comfortably.
02:53
Your chair should allow for adjusting the angle of the seat and the angle of the back said to a position that is the most comfortable for you.
03:02
It should provide adequate support for your elbow and wrists. This could be done through the arm rests on the chair,
03:10
and that should be adjusted. So their level with the desk
03:15
and your displays should be at the right height so you don't strain your neck looking up or looking down trying to see the display.
03:24
And then there are ergonomic keyboards on muscles available
03:29
that helped to position your wrists correctly to provide the support they need.
03:38
So this diagram illustrates some recommendations,
03:43
such as a chair with lumbar support, and it's got an adjustable angle or tilt
03:49
and an adjustable height.
03:52
The eyes should be level with the top of the display
03:54
and at the right distance from it, so you don't have to strain to see what's on the screen.
04:00
Your desk should be at the right level,
04:03
and your elbows and wrists should be at right. Angles
04:09
on your feet should be flat on the floor
04:12
now. A lot of this can obviously be done by adjusting the chair so I can adjust the height of the chairs on my feet. Do sit flat on the floor. I can adjust the height off any arm breaths that might exist so that they can support my arms at right angles and so on.
04:32
Economic keyboards There have been a variety of these, and they look different from a traditional keyboard because the problem with the traditional keyboard is that although our risks are coming in at an angle,
04:46
they keep also designed as if our wrists were head on.
04:51
That is, at right angles to at the parallel to each other, but they're not.
04:56
Our hand naturally sits at a slight angle,
04:59
so these types of keyboards are angled slightly. So are risks have a much more natural position
05:04
when using the keyboard.
05:11
So many of the topics that we've looked at in this module, such as safe use of equipment, proper disposal of equipment,
05:18
correct device placement and economic use,
05:24
are provided and mentioned in the documentation produced by the vendors.
05:30
So it's important that you actually read and take heed of the documentation
05:33
that, for example, comes with your computer with your display
05:38
with your keyboard or with the chair that you're buying.
05:42
If the documentation doesn't come with it, then check on the benders website, where they may have further information.
05:55
So to summarize this, the final model in the course,
05:58
we were asked to describe the importance and impact of various environmental and safety concepts, so we talked about hazardous materials and proper disposal. In most cases, anything containing hazardous material should not be disposed off in your trash. You should check online for your particular
06:16
city or county or state
06:18
to see what the laws and regulations are, and also what facilities are available to help you
06:25
dispose off these safely or recycle them.
06:29
We talked about power options that could be used to conserve power in the Energy Star logo and what that implies.
06:34
We talked about not placing your devices in places where they can get harmed There. There's, for example, excessive heat, excessive humidity
06:45
or excessive amounts of vibration and shocks.
06:48
We talked about electrostatic discharge and how that can
06:53
damage electronic components within a computer
06:57
and how to make sure you are discharged before touching me any of the components inside a PC.
07:03
And then finally we talked about ergonomics, doing sure that you don't end up with health problems when working with computers for prolonged periods.

CompTIA IT Fundamentals

The CompTIA IT Fundamentals certification is aimed at people considering a career change to IT. The course will prepare you to take the CompTIA IT Fundamentals exam. If you are new to IT this course is prerequisite knowledge that allows you to tackle the more advanced A+ and Network+ CompTIA certifications that many IT professionals hold.

Instructed By

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Ali Wasti
Instructor