Mitä eroa kyseisillä 1.1 ja 1.2 on?
Olen ostamassa bluetoothtikkua tietokoneeseeni ja ihmettelen tuota.. Onko
1.2 nopeampi kuin 1.1 vai kuinka?

Missä sää tommosia vaihtoehtoja näit? Ettei vaan ois ollu kyseessä USB 1.1 ja 2.0

http://www.verkkokauppa.com/popups/prodinfo.php?id=1546

Täysin Bluetooth 1.2 yhteensopiva.

ja

http://www.verkkokauppa.com/popups/prodinfo.php?id=6895

Bluetooth 1.1 sovitin

Nuo esimerkiksi...

1.1 ja 1.2 on yhtä nopeita, mutta 1.2:ssa on korjattu yhteensopivuuksia ym. eli tuskin kannattaa enään hankkia tota vanhaa versiota.
Katso: http://en.wikipedia.org/wiki/Bluetooth

Uusin v2.0 on kolme kertaa nopeampi.

Bluetooth 1.1
In version 1.1 many errata found in the 1.0B specifications were fixed. There was added support for non-encrypted channels.

Bluetooth 1.2
This version is backwards compatible with 1.1 and the major enhancements include
Adaptive Frequency Hopping (AFH), which improves resistance to radio interference by avoiding using crowded frequencies in the hopping sequence
Higher transmission speeds in practice
extended Synchronous Connections (eSCO), which improves voice quality of audio links by allowing retransmissions of corrupted packets.
Received Signal Strength Indicator (RSSI)
Host Controller Interface (HCI) support for 3-wire UART
HCI access to timing information for Bluetooth applications.

Bluetooth 2.0
This version is backwards compatible with 1.x. The main enhancement is the introduction of Enhanced Data Rate (EDR) of 2.1 Mbit/s. This has the following effects (Bluetooth SIG, 2004):
3 times faster transmission speed (up to 10 times in certain cases).
Lower power consumption through reduced duty cycle.
Simplification of multi-link scenarios due to more available bandwidth.
Further improved BER (Bit Error Rate) performance

Kiitos ja kumarrus
Ostin tuon A-Linkin 1.2 bluetoothpökäleen