Universal Serial Bus (USB) became a phenomena in the late 1990s and is still the platform if communication of choice for most hardware manufacturers. Explain in brief the history of USB, the versions of USB. How can we use USB for Input/Output?

The history of USB

The USB was developed in 1999 by seven companies which are Compaq, DEC, IBM, Intel, Microsoft, NEC and Nortel. The goal was to make it fundamentally easier to connect external devices to PCs by replacing the multitude of connectors at the back of PCs, addressing the usability issues of existing interfaces, and simplifying software configuration of all devices connected to USB, as well as permitting greater data rates for external devices. The first silicon for USB was made by Intel in 1995.

The versions of USB

Prereleases:

• USB 0.7: Released in November 1994.
• USB 0.8: Released in December 1994.
• USB 0.9: Released in April 1995.
• USB 0.99: Released in August 1995.
• USB 1.0 Release Candidate: Released in November 1995.

USB 2.0

• High speed USB

USB 3.0

• Super speed USB

Others:

• Wireless USB

• USB On-The-Go

• High Speed USB On-The-Go

How can we use USB for Input/Output?

Basically we can use any USB device as an input or output device.

Example,

Input:

• USB mouse
• USB keyboard

Output:

• USB Printer
• USB Speaker

one step closer or one step behind?

today was my first day i was interviewed. memula masa dpt tawaran bila cek kat tenet mmg hepi gila.. tp i dpt kat melaka sebab my dad yg pilih kt sane coz umah kat serting. so maybe melaka kot yg terdekat (i hate geog, sorry). disebabkan xnk bg i nervous on the day, my dad bawak g survey tmpat tu 2 hari lebih awal coz masa interview tu agak awal. kul 11. smpai2 je tulis nama kat buku and jaga tu suh naik tgkat 6. sebelum masuk tu ada pulak budak ni pki coat dtg kat i, salam. i pon layan jelah. then dia ajak naik sama2. (xde kawan kot dia ni) =.=....

pastu smpai kat tingkat 6, ada tulis "kaunter pendaftaran".. kitorang pon tampe segan silu terus g kat meja tu... abg tu pon cakap "duduk dulu dik" ... ape lagi, ngan muka x malu pusing belakang balik >.< .

pastu nama pon mula dipanggil sorang2.. ikut huruf rasa.. pastu dia bahagikan ikut course.. mine was engineering so i was placed kat tingkat 4... ada yg dh masuk dh pon waktu tu.... then ada sorang mamat ni cam friendly gila. dia ckp2 sume cita pasal interview nk bgi kitorang semangat. aku ckp dlm ati, "dia ni x cuak ke? aku dah gigil 1 bdn ni"... rpenye dia dah amik dah.. dia course medik tp sesat kat flor kitorang. =.=

kitorang pon tanya lah dia mcm2.. while for me, i bnyk bce tips yg i dah copy paste on my phone. :D

tiba lah giliran i nk masuk... dub dab dub dab dahhhhhhhhhhhhhhhh... masuk tu ketuk pintu pastu jerit "ASSALAMUALIKUMMMM (xnk bg nerves []_[]""") antara soklan2 yg i sangkut skit, kenapa xnk pilih university yg no 1? kenapa nk amik yg no 6??" (no 1= HARVARD, kila babas la kalau aku dpt havard =.=)

then dah habis tu i pon turun bawah. nek kete.. then g jusco makan J.CO, beli crocs baru abah blanjeeeee :D!!

ok.. tu je.. penat dah. babai!