Universal Serial Bus

Universal Serial Bus (USB)
Certified USB.svg
Certified USB logo
TypeBus
DesignerDigital Equipment Corporation, IBM, Intel, Microsoft, NEC an Nortel
Designed1996
ManufacturerIntel, Compaq, Microsoft, NEC, Digital Equipment Corporation, IBM, Nortel
SuperseditSerial port, parallel port, gemme port, Apple Desktop Bus, PS/2 connector
Length2–5 m (6 ft 7 in–16 ft 5 in) (bi category)
Width12 mm (A-plug),[1] 8.45 mm (B-plug); 7 mm (Mini / Micro-USB)
Hicht4.5 mm (A-plug),[1] 7.78 mm (B-plug, pre-v3.0); 1.5–3 mm (Mini/Micro-USB)
Het pluggableYes
FreemitYes
Cable4 wires plus shield (pre-3.0); 9 wires plus shield (USB 3.0)
Pins4: 1 supply, 2 data, 1 grund (pre-3.0); 9 (USB 3.0); 11 (powered USB 3.0); 5 (pre-3.0 Micro-USB)
ConnectorUnique
Signal5 volt DC
Max. voltage5.00±0.25 V (pre-3.0); 5.00+0.25-0.55 V (USB 3.0)
Max. current

0.5–0.9 A (general);

5 A (charging devices)
Data signalPacket data, defined bi specifications
Width1 bit
Bitrate1.5/12/480/5,000/10,000 Mbit/s (dependin on mode)
Max. devices127
ProtocolSerial
USB.svg
The staundart USB A plug (left) an B plug (richt)
Pin 1VCC (+5 V)
Pin 2Data−
Pin 3Data+
Pin 4Ground

Universal Serial Bus (USB) is an industry staundart developed in the mid-1990s that defines the cables, connectors an communications protocols uised in a bus for connection, communication, an pouer supply atween computers an electronic devices.[2]

  • references

References

  1. 1.0 1.1 "USB 'A' Plug Form Factor Revision 1.0" (PDF). USB Implementers Forum. 23 March 2005. p. 1. Retrieved 4 April 2012. Body length is fully 12mm in width by 4.5mm in height with no deviations 
  2. "USB deserves more support", Boston Globe Online, Simson, 1995-12-31, retrieved 2011-12-12 
Other Languages
Afrikaans: USB
العربية: يو إس بي
azərbaycanca: USB
беларуская: USB
български: USB
বাংলা: ইউএসবি
brezhoneg: Porzh USB
bosanski: USB
Ελληνικά: USB
English: USB
euskara: USB
فارسی: یواس‌بی
suomi: USB
galego: USB
Avañe'ẽ: USB
हिन्दी: यूऍसबी
hrvatski: USB
hornjoserbsce: Universal Serial Bus
Bahasa Indonesia: Universal Serial Bus
italiano: USB
қазақша: USB
ಕನ್ನಡ: ಯುಎಸ್‌ಬಿ
한국어: USB
Lëtzebuergesch: Universal Serial Bus
lumbaart: USB
lietuvių: USB
олык марий: USB
македонски: USB
Bahasa Melayu: Bas Bersiri Semesta
မြန်မာဘာသာ: ယူအက်စ်ဘီ
norsk nynorsk: Universal Serial Bus
norsk: USB
polski: USB
Piemontèis: USB
română: USB
русский: USB
sicilianu: USB
සිංහල: යූ.එස්.බී.
Simple English: Universal Serial Bus
Soomaaliga: USB
shqip: USB
српски / srpski: USB
తెలుగు: యుఎస్‌బి
Türkçe: USB
українська: USB
oʻzbekcha/ўзбекча: Universal Serial Bus
Tiếng Việt: USB
ייִדיש: USB
中文: USB
粵語: USB