00:00:00
We meet again on Jagat Review TV
00:00:02
We can still see that many still consider that
00:00:06
connected to Wi-Fi means being connected to Internet
00:00:10
many even say that internet service providers
00:00:15
are the Wi-Fi providers
00:00:19
Many still seem to be confused regarding the devices to connect to internet and its functions,
00:00:24
like modem, router, access point and so on
00:00:28
Yes, I understand that many of you already understand
00:00:31
but this video is dedicated to those who do not understand yet,
00:00:35
so they are not confused
00:00:37
Now let's try straighten up these matters
00:00:40
we will not discuss each term in details
00:00:44
but we will try to explain the functions as simple as possible
00:00:48
as brief as possible the description of what are the meanings of terms and functions of those devices
00:00:59
Ok, many when they talk ask about Wi-Fi, we discuss about router Wi-Fi-Fie
00:01:03
then they ask if it can use modem or not, can it do this or not
00:01:07
then I want to have Wi-Fi at home
00:01:10
Many are mixing up between Wi-Fi function
00:01:15
and the Internet, so this is a bit confusing
00:01:20
Ok, so we will start with sequencing
00:01:23
connectivity, the internet, up until the device that we use
00:01:30
starting from the very source
00:01:34
We will start with ISP or Internet Service Provider
00:01:40
as the words state this is the internet service provider
00:01:44
yes, the correct name is ISP or Internet Service Provider not Wi-Fi Provider, because they provide the internet
00:01:51
Examples of ISP are such as: IndiHome, FirstMedia, perhaps FastNet, MyRepublic,
00:01:58
Indosat GIG, BizNet, Bali Fiber and so on, there are many
00:02:04
for sure, your area is covered by some of those, most likely by IndiHome
00:02:09
that is used by many
00:02:11
So, this ISP is the one the inserts the internet
00:02:15
into homes, offices and others where the internet needs to be installed or connected
00:02:21
there are several lines used to insert internet
00:02:27
the most common one nowadays is Fiber Optic
00:02:30
but there is also a coaxial cable option, the big cable. FirstMedia is still mostly using coaxial cable
00:02:37
In the past telephone cable use was popular as well,
00:02:40
IndiHome use to use telephone cable
00:02:43
There is also wireless line available or non-cable, for example point to point radio
00:02:49
using cellular network, ISP towers and also satellite, there are direct satellite connections
00:02:55
and there are also few other lines which are nowadays rarely used
00:03:02
So that the internet can be used, we have to connect this internet path
00:03:07
to the device that is called modem
00:03:11
Modem here is not only the kind of modem that you carry around, that you can insert SIM Card
00:03:17
no, so just follow this since the name is indeed modem
00:03:20
modem is what connects us to the internet,
00:03:23
modem is short for modulator-demodulator
00:03:28
which actually shows what this device does
00:03:31
this device translates whatever data is sent from internet
00:03:34
to the format that can be sent through the connection line
00:03:38
so, since there are various lines that can be used to connect to internet, thus there are various of modem types
00:03:45
because of the various lines we discussed earlier
00:03:48
will have a different format of sending data
00:03:51
among those there is modem for telephone cable lines
00:03:53
this can be dial-up modem, that was in the past making those tut tut tut sounds that's the dial up
00:03:59
then there was the DSL modem, the IndiHome in the past
00:04:03
then there was modem for radio line, these could be different
00:04:07
according to the type of radio connection used
00:04:10
then there is modem for coaxial line and also for fiber optic line
00:04:15
this is the one that is now commonly used in larger cities
00:04:18
So without these modems we practically couldn't connect to the internet
00:04:23
in the past this modems would be connected directly to a computer, because internet connection needs were not like nowadays
00:04:29
while nowadays internet connection at home or office is further divided so it can be accessed by several devices
00:04:36
including to computer (PC), smartphone, tablet, IoT devices and many more
00:04:42
So to divide the internet connection which has reached the modem,
00:04:45
usually several additional devices are used, like:
00:04:49
router, then switch/hub and Wi-Fi Access Point
00:04:52
So, what are all these router, switch/hub and Wi-Fi access point? Getting dizzy?
00:04:58
Slow down, just follow slowly
00:05:00
so the internet comes from ISP, enters into modem,
00:05:06
now how to connect the devices like, smartphone, tablet and others to the internet
00:05:12
the 1st device needed after modem is router
00:05:17
you have heard we discussed about routers in our reviews
00:05:21
router is a fairly complicated device
00:05:23
because its function might be a bit difficult to imagine in this short video
00:05:29
but we will try to simplify it
00:05:31
the main router function is to connect or to enable different networks so those can communicate properly
00:05:38
the router will connect modem to build internet connection
00:05:43
then it connects it to the local network
00:05:46
to be precise to the devices in the local network
00:05:49
how is that done?
00:05:51
as we know in a network there is an address or IP address, there must be an address
00:05:56
sometimes you are required to input numbers with dots in between, that is the IP address
00:06:02
inside the IP configuration of a device, there is usually also a gateway setting
00:06:07
or the mediator that connects the device in local network to internet
00:06:12
here router functions as the gateway or connecting line to the internet
00:06:18
because this router is the gateway, thus this device manages
00:06:21
where the package from the internet goes to the device inside the local network
00:06:27
it's like managing the traffic
00:06:31
the modem receives the internet,
00:06:34
then inside there are many devices so how to manage the traffic, so this is managed by the router
00:06:39
so it's quite simple router is actually a route manager
00:06:45
so it manages the route
00:06:47
after the route manager,
00:06:50
we continue to the local network after the router
00:06:54
or what we know as Local Area Network (LAN), why? Because this is already in local network while before it was on internet
00:07:00
first entering modem, then router and now the local area network
00:07:05
Another device is of course needed so that the local network can be shaped and connected to the router
00:07:12
the device commonly used is switch or hub
00:07:15
the one with connector plug holes
00:07:18
or access point for wireless based connection the one without cable
00:07:24
1st we will discuss switch or network switch, this is a device
00:07:27
that connects devices within a cable-based network
00:07:32
Is the function similar to a router?
00:07:34
no, it's different
00:07:37
the switch function is more to connect those devices
00:07:42
so the devices are connected using the switch
00:07:46
but it's not the one that manages the internet line, no
00:07:50
that's the routers task, so there are two separate functions here
00:07:54
the switch is the one where you can see connector plug holes (ports) for the cables
00:08:00
switch is usually differentiated based on how many ports it has and speed standard that is supports
00:08:06
but in this video, we will not discuss it,
00:08:08
at least you know there are 16 ports, 8 ports, 4 ports switches
00:08:15
so 4 ports switch has 4 plugs, 16 ports switch has 16 plugs, it's as simple as that
00:08:20
while if you have heard about hub, it's actually similar to switch
00:08:25
but the way it handles the traffic is not as good as the switch,
00:08:30
the way it handles data load is not as good as the switch
00:08:33
so most have shifted to the switch
00:08:36
if switch and hub are used to connect the devices to the local network using cables,
00:08:41
so most probably your computer is connected to the switch or hub using the cable
00:08:45
How about connecting without cable? Nowadays, still using cable?
00:08:49
Even though it's the most stable connectivity
00:08:53
So without the cable, the most commonly used is the Wi-Fi standard
00:08:58
Yes, Wi-Fi is the cable replacement medium for connecting
00:09:03
from the earlier sequence, from the router,
00:09:07
to your devices on the local network
00:09:10
Now so this Wi-Fi connectivity is available, there is a device called Access Point,
00:09:16
or the point to access, simple right
00:09:20
don't bother it's just translated from English
00:09:23
this access point term is just used for Wi-Fi or wireless network
00:09:28
The interesting thing is, what happens if for example
00:09:33
switch or hub or access point is used without router and modem
00:09:38
Can it be done or not?
00:09:39
the answer is, yes it can be done
00:09:42
router and modem will provide internet
00:09:46
but without that, router and hub along with access point can actually be used
00:09:50
to build a network but without the internet
00:09:54
so the Wi-Fi being available doesn't mean there is internet
00:09:59
yes.. we can build a Wi-Fi network to connect the devices within the local network, that's possible
00:10:06
for example your laptop wants to copy data to NAS (Network-Attached Storage),
00:10:12
or to storage or another computer
00:10:15
but without internet connection
00:10:17
that can be done using Wi-Fi or switch/hub
00:10:21
sometimes this is needed for security reasons,
00:10:23
since if there is internet then there is a possibility the security factor is not so good
00:10:29
some do it like that
00:10:31
so the network is really secured, thus without internet
00:10:36
the Wi-Fi can connect our devices to the internet,
00:10:41
because it is connected to router, modem and internet service provider
00:10:48
so there is the difference, there is Wi-Fi or switch/hub,
00:10:54
then there is router, then modem and then the ISP
00:11:00
that has to be separated one by one
00:11:03
but then if there is modem, router, switch/hub, access point
00:11:06
then why if I order internet,
00:11:09
only one device is provided
00:11:15
Commonly when we nowadays install the internet,
00:11:18
or in this case get an internet subscription from one of the ISP,
00:11:21
the device installed by the ISP
00:11:24
is usually only one or maximum two and that is normal
00:11:29
this is because the functions of modem, router, switch, access point are all united into a single device
00:11:35
yes, usually the ISP provide a router,
00:11:39
that has a modem module and is also equipped with switch and access point for Wi-Fi
00:11:45
so a single device combines all those into one
00:11:50
this kind of router is usually equipped with port to connect to the ISP
00:11:53
like fiber optic port, then it also has few network ports
00:11:57
like a network switch
00:12:00
then there is an access point module that can be used to connect to Wi-Fi devices,
00:12:05
adding the basic router ability, this device can perform all functions
00:12:10
that we have discussed earlier
00:12:13
and it comes in one compact device
00:12:17
there are some ISP that use a separate modem,
00:12:20
that is then connected to the router that comes with switch and access point for Wi-Fi
00:12:26
this is normal because not all types of internet connection points can directly be accommodated by
00:12:32
modem modules in routers that are available
00:12:36
like for coaxial cable
00:12:38
then this modem is connected to a wireless router
00:12:46
a wireless router is a router which is equipped with switch,
00:12:50
and Wi-Fi access point
00:12:52
Are you getting dizzy? just listen slowly
00:12:55
so most likely this is what causes the confusion
00:12:59
because there is this single device from ISP, which once installed presents the internet
00:13:06
then you can directly connect to the Wi-Fi, that's what makes many say
00:13:10
Wi-Fi is same as internet
00:13:13
even though it's not, Wi-Fi is actually only substitute for cable
00:13:16
the correct term is "I would like to subscribe to internet service"
00:13:23
"I would like to subscribe to internet", because the internet has to arrive at our home 1st
00:13:27
only then you can ask, "can I connect using Wi-Fi or not?"
00:13:31
usually, it's provided
00:13:33
nowadays the Wi-Fi connectivity is provided
00:13:37
so, remember
00:13:38
Wi-Fi and internet are not the same
00:13:41
So then why some are using additional routers after the router from ISP?
00:13:46
many are offering, like the ones in front of me with the antennas are the routers
00:13:53
while the one with the ports are the switches
00:13:58
so why are some adding these, that are commonly sold
00:14:04
because usually the device provides by the ISP,
00:14:08
is not high tech, the fastest, the best
00:14:13
the device usually provide is still the 2.4 GHz
00:14:16
some do provide the 5 GHz device but it's not really common
00:14:20
most provide the 2.4 GHz device for the Wi-Fi
00:14:24
thus, the users need to upgrade
00:14:28
so everything is faster
00:14:31
and then imagine that one device
00:14:35
manages all the functions, then it's not possible that this device will run fast and smooth at all times
00:14:42
it's burdening all the work to a single device not to mention that it's usually small
00:14:46
it's better to add an additional Wi-Fi router for the better connectivity
00:14:53
but don't get mistaken, when you add a faster router
00:14:57
beside the all-in-one device provided by the ISP
00:15:02
it doesn't mean that
00:15:05
that the internet speed from the ISP to your modem will become faster
00:15:10
no, but you can get the maximal speed
00:15:14
from ISP to the modem, then to the Wi-Fi
00:15:18
so this is for the maximum speed available
00:15:21
there are these big routers with many antennas
00:15:26
that is to obtain the optimum speed, the maximum speed
00:15:30
if you ever read the comments, there was a question
00:15:34
when we were discussing about a Wi-Fi router
00:15:37
Can it use a SIM card?
00:15:39
This is interesting, what is meant by SIM card here it that there are several
00:15:46
modem router Wi-Fi,
00:15:49
which come with 2 modems, so the modem gets internet from cable line and it also has
00:15:56
a modem line that can use LTE or 4G
00:15:59
there are those kinds, or it can be connected to
00:16:03
to USB that can be connected to another modem, meaning adding a modem
00:16:08
those kinds of devices are rare but many asked about that
00:16:12
but basically, the internet comes from the ISP (Internet Service Provider)
00:16:19
it enters into a modem
00:16:22
from modem the line is managed by the router
00:16:27
now physically, it is connected by switch if using cable
00:16:32
or using Wi-Fi access point
00:16:35
yes, the Wi-Fi access point is what connects to your smartphone, laptop, etc
00:16:40
so, differentiate between Wi-Fi and internet
00:16:45
so hopefully, that is clear enough how you can obtain internet connection
00:16:52
through Wi-Fi
00:16:54
it's not the Wi-Fi that provides the internet
00:16:57
but the Wi-Fi is the last connector that connects you to the device that receives the internet
00:17:03
which is the combination of
00:17:06
modem, router, Wi-Fi and switch
00:17:09
I am Dedy Irvan, Jagat Review TV.
