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We Live For The One We Die For The One wrote:
| No probs everything thing is as it should be, USB sucks.
~ _____________________
~ /| /| | |
~ ||__|| | Please do not |
~ / O O\__ | feed the |
~ / \ | Trolls |
~ / \ \|_____________________|
~ / _ \ \ ||
~ / |\____\ \ ||
~ / | | | |\____/ ||
~ / \|_|_|/ | _||
~ / / \ |____| ||
~ / | | | --|
~ | | | |____ --|
~ * _ | |_|_|_| | \-/
*-- _--\ _ \ | ||
~ / _ \\ | / `
* / \_ /- | | |
~ * ___ c_c_c_C/ \C_c_c_c____________
Which is why they chose to implement it in BTX, because it 'sucks' so hard.
Nevermind the fact it is 1,000,000 times more versatile than any device
connected via a ps/2 plugin, other than mice, keyboards and lightwands
(barcode readers) or Magstripe readers, no other major hardware was ever
mass-manufactured for use with a PS/2 plugin as its means of connection.
The standard for PS/2 was made in 1987, when the bandwidth requirements
for optical mice that scan their position thousands of times a second,
or digital cameras, flash memory and all their ilk were a techno-geeks
wet dream.
Nevermind the transmission rates are pitifully slow, not even capable of
the rates of a serial port, since none of the devices I could find
(magstripe/barcode readers in older magazines require the loading of a
fossil driver, I can only conclude it did not require any transmission
rate above 57,600bps (56k) or else DOS would have required a secondary
driver, I recall many a serial device requiring one for my BBS
This is a chart of bandwidth for connections:
serial port : 115kbits/s (.115Mbits/s)
Original USB (1.1) : 12Mbits/s (1.5MBYTES/s)
IEEE-1394 (FireWire) : 100-400Mbits/s (12.5--50MBYTES/s)
Hi-Speed USB (2.0) : 480Mbits/s
Your PS/2 at most is capable of 1/2 a good serial port.
Or any of the following abilites that USB has that PS/2 couldnt even
ATTEMPT to do, given signalling and voltage requirements.
# Hot Swapping Capability
Hot swapping a PS/2 device can/will SCREW your board, its a powered
device (5v DC)
# Multiple Peripheral, with the use of USB hubs, allows up to 127
different peripherals to be used at one time
PS/2 permits the usage of up to (woo, ready for it) ONE per port.
Thats right, One.
# Distributes electrical power to many peripherals. USB lets the PC
automatically sense the power thats required and deliver it to the
device. This feature eliminates the need for auxiliary power supplies
Wow, guess the 5v it pulls isnt enough for a few of the magstripe
readers I found, the old PS/2 versions required a power adaptor, but the
USB ones dont..... wonder why that is.
# Share peripherals between PC platforms
PC *and* Macintosh computer platforms more specifically, nevermind the
myriad PDA / Cellphones / Lights / Cameras etc etc etc etc that use USB.
# Higher Bandwidth
FAR FAR Higher.
# Simplicity of use
Plug it in, proper devices should be recognized as a general class and
supported, although you may require vendor specific software to support
those extra features which your device offers.
# Built in operating system support for devices
Windows, Mac OS/X, 101 *nixes and the BSD flavours.
So like Ben has said, what is your given hardware that makes you express
this patently naive opinion?
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