1
00:00:00,080 --> 00:00:07,839
do you ever wonder why nearly every external device you connect to a PC uses

2
00:00:04,480 --> 00:00:09,320
a USB port the simple answer is because

3
00:00:07,839 --> 00:00:13,920
that's a lot better than the way it used to be before USB was around we had a

4
00:00:11,599 --> 00:00:17,320
whole Litany of Port types So today we're going to show you just how

5
00:00:15,440 --> 00:00:21,359
annoying it could be to connect your electronics back in the 80s and 90s

6
00:00:19,760 --> 00:00:26,400
let's start out with a port some of you might still be familiar with today the

7
00:00:23,480 --> 00:00:31,519
PS2 Port this chocolate chip cookie looking little guy was introduced not

8
00:00:28,519 --> 00:00:34,800
with the PlayStation but in 1987 on the

9
00:00:31,519 --> 00:00:37,440
IBM personal system SL2 it replaced an

10
00:00:34,800 --> 00:00:41,640
older connector called the din which was originally an audio connector from the

11
00:00:39,239 --> 00:00:47,320
1950s but was used as the keyboard connector on the original IBM PC as well

12
00:00:44,239 --> 00:00:50,280
as a tape drive connector on the IBM PC

13
00:00:47,320 --> 00:00:55,800
junor which was like the IBM PC but more naive once PS2 took over it was common

14
00:00:53,559 --> 00:01:00,120
for systems to include two of them one for your keyboard and one for your mouse

15
00:00:57,800 --> 00:01:04,920
and color code them purple and green respectively since each Port was often

16
00:01:02,440 --> 00:01:09,799
coded at a low level to only work with that specific

17
00:01:07,000 --> 00:01:13,720
device the PS2 Port was useful back in the day because it provided a dedicated

18
00:01:11,720 --> 00:01:18,080
link on the motherboard for mice something older systems didn't always

19
00:01:15,479 --> 00:01:22,439
have but seeing as how USB provided an equally easy way to connect them PS2

20
00:01:20,560 --> 00:01:27,000
ports aren't that common anymore especially as their pin base design made

21
00:01:24,920 --> 00:01:32,720
them more fragile than the typical USB port and they're not technically meant

22
00:01:29,119 --> 00:01:34,280
to be hot popped however PS2 ports can

23
00:01:32,720 --> 00:01:38,399
still be found on some Modern motherboards usually as a combined

24
00:01:36,560 --> 00:01:42,000
keyboard and mouse port and that's because they do still have some

25
00:01:39,880 --> 00:01:47,439
advantages PS2 tends to work more reliably with some older bioses and in

26
00:01:44,759 --> 00:01:51,600
settings where security is Paramount PS2 ports allow an organization to just

27
00:01:49,240 --> 00:01:55,520
disable all USB ports on their computers to ensure people aren't connecting

28
00:01:53,079 --> 00:01:59,000
things like unauthorized flash drives but the PS2 connector wasn't the only

29
00:01:57,479 --> 00:02:04,520
connector for keyboards and mice during the late 80s this thing is called the

30
00:02:01,680 --> 00:02:09,759
Apple desktop bus found on Apple system starting in 1986 but it supported more

31
00:02:07,520 --> 00:02:15,440
peripherals like joysticks and Graphics tablets and could even be Daisy chained

32
00:02:12,520 --> 00:02:18,959
but this port too was replaced by USB once the original iMac came out but

33
00:02:17,400 --> 00:02:22,280
let's move on from keyboards and mice and talk about what the heck these

34
00:02:20,519 --> 00:02:27,959
things are right after we thank the sponsor of this video Cloud DNS Cloud

35
00:02:25,000 --> 00:02:32,560
DNS is a provider of global managed DNS services that ranks among the fastest in

36
00:02:30,160 --> 00:02:38,160
their field according to DNS perf they deliver reliability speed and security

37
00:02:35,239 --> 00:02:43,959
thanks to a global anycast DNS Network that spans across 50 different points as

38
00:02:41,159 --> 00:02:48,920
a trusted DNS hosting provider Cloud DNS offers highquality cost-effective

39
00:02:45,920 --> 00:02:51,360
services with DOs protected servers plus

40
00:02:48,920 --> 00:02:56,200
their 10,000% uptime service level agreement means for every minute of

41
00:02:53,480 --> 00:03:00,959
downtime that occurs they extend 100 additional minutes to their customers to

42
00:02:58,280 --> 00:03:07,040
enjoy their forever free Dynamic DNS plus 24/7 technical support simply click

43
00:03:04,040 --> 00:03:09,200
the link below it's that easy instead of

44
00:03:07,040 --> 00:03:13,400
being intended for a specific use like the keyboard and mouse ports we've

45
00:03:10,519 --> 00:03:18,879
discussed this guy was kind of the OG doit all connection it's called a Serial

46
00:03:16,200 --> 00:03:24,480
port and just like today's USB ports it sent or received data one bit at a time

47
00:03:22,680 --> 00:03:27,680
serial ports were used for all sorts of things not only could you connect a

48
00:03:26,080 --> 00:03:32,400
mouse to them but people use them for modems routers PC to PC connections

49
00:03:30,400 --> 00:03:37,760
uninterruptable power supplies text displays and even old school smart home

50
00:03:35,360 --> 00:03:41,840
hubs although the serial Port can still be found today in some specialized

51
00:03:39,760 --> 00:03:47,239
applications older implementations of the port were quite Limited in real

52
00:03:44,000 --> 00:03:49,599
world speed to around 9600 bits per

53
00:03:47,239 --> 00:03:56,079
second which in addition to its clunky design contributed to its downfall and

54
00:03:52,159 --> 00:03:58,319
the rise of USB now this big chunker is

55
00:03:56,079 --> 00:04:04,280
called a parallel port also more specifically known as a printer port or

56
00:04:00,519 --> 00:04:06,760
1284 port and was typically labeled lpt

57
00:04:04,280 --> 00:04:10,680
followed by a number in Windows as the name suggests it was mainly used for

58
00:04:08,640 --> 00:04:14,760
connecting printers and was fairly ubiquitous for this purpose during the

59
00:04:12,400 --> 00:04:18,479
1990s although there were some printers that could connect through the

60
00:04:16,000 --> 00:04:22,479
aforementioned serial Port the parallel port became more popular because it

61
00:04:20,400 --> 00:04:29,120
could deliver both data and control signals to the printer at the same time

62
00:04:25,800 --> 00:04:31,320
what technology a few other data heavy

63
00:04:29,120 --> 00:04:35,880
devices including Optical drives zip drives and even a few MP3 players also

64
00:04:33,960 --> 00:04:40,120
used the parallel port because it could move more data than the serial Port

65
00:04:38,479 --> 00:04:44,800
however it still couldn't do more than around a couple of megabytes per second

66
00:04:42,080 --> 00:04:47,840
at most at highp speeds it becomes difficult to keep the multiple data

67
00:04:46,160 --> 00:04:51,320
streams of a parallel connection synchronized which was part of the

68
00:04:49,560 --> 00:04:57,280
reason that the parallel port also became displaced by USB a much faster

69
00:04:54,680 --> 00:05:01,280
serial connection however both parallel and serial ports are still in use in

70
00:04:59,639 --> 00:05:06,240
some industrial and scientific applications as they provide simple

71
00:05:03,240 --> 00:05:08,479
interfaces that just work with older

72
00:05:06,240 --> 00:05:13,160
equipment finally we'd like to say a few words about the game Port somewhere

73
00:05:10,680 --> 00:05:17,840
between the parallel and serial ports in physical size this was a common way to

74
00:05:15,759 --> 00:05:23,680
connect joysticks and game paddles in the 1980s and '90s in the mid 1980s game

75
00:05:21,479 --> 00:05:29,000
ports were often included on expansion cards that also contained other types of

76
00:05:26,280 --> 00:05:33,120
ports but during the 1990s game ports became very very popular as it was

77
00:05:30,800 --> 00:05:37,880
typical for them to be placed on sound cards and seeing as Gamers were a key

78
00:05:35,479 --> 00:05:42,479
market for better sound quality the game Port was a natural choice for a cool

79
00:05:40,000 --> 00:05:47,600
value ad does that mean those sound cards were technically

80
00:05:44,639 --> 00:05:51,880
dongles H however the game Port could only support a limited number of buttons

81
00:05:49,800 --> 00:05:55,840
without a specialized driver and on top of that it was an analog connection

82
00:05:54,000 --> 00:06:00,240
leaving joysticks vulnerable to electrical noise that could mess with

83
00:05:57,400 --> 00:06:04,360
your inputs USB's digital nature which allowed easier support for fancier

84
00:06:02,120 --> 00:06:08,759
controllers meant the game Port fell out of fashion quickly during the 2000s and

85
00:06:06,840 --> 00:06:12,919
Windows dropped native support for it starting with Vista you know cuz they

86
00:06:11,160 --> 00:06:17,720
had to make room for the important things did you use another gone but not

87
00:06:15,440 --> 00:06:21,639
forgotten Port before the days of USB comment down below and you might see

88
00:06:19,199 --> 00:06:25,440
your submission in a future episode but as for this episode it's over thanks for

89
00:06:23,919 --> 00:06:28,599
watching hey like the video if you liked it dislike it if you disliked it check

90
00:06:26,919 --> 00:06:33,199
out our other videos comment below with video suggestions and don't forget to

91
00:06:30,520 --> 00:06:40,080
subscribe and follow using the peripheral of your choice it could use

92
00:06:35,919 --> 00:06:40,080
USB it could not I don't know
