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Chng 7: Thit b vo ra

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Chng 7: Ni dung chnh Gii thiu chung v thit b vo/ ra

Cc thit b vo Bn phm

Chut Cc thit b ra

Mn hnh

My in

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Thit b vo/ra Thit b vo/ ra (thit b ngoi vi) l cc thnh phn

ca my tnh chu trch nhim: Ly d liu t th gii bn ngoi vo my tnh

a d liu t my tnh ra ngoi Cc thit b u vo:

Bn phm, chut, my qut, CD/DVD, HDD (c),

Cc thit b u ra: Mn hnh, my in, CDWR/ DVDRW, HDD(ghi),

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Thit b vo/ra

A multimedia keyboard A logitech mouse

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Thit b vo/ra

A CRT monitor An LCD monitor

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Thit b vo/ra

A Laser Printer A Ink Jet Printer

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Cng truyn thng Cc thit b vo/ ra thng kt ni vi my tnh bng

cch s dng cc cng truyn thng Mi cng c gn mt a ch duy nht

Cc cng thng dng: PS/2: cho bn phm v chut

Cc cng COM v LPT

USB

USB 1.0: 12Mb/s

USB 2.0: 480Mb/s

USB 3.0: 1.5Gb/s

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Cng truyn thng Cc cng thng dng:

IDE, SATA v E-SATA: a

LAN, Audio

Cng c card Firewire/ IEEE 1394: cc a thm

VGA/ Video port

DVI

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Cng truyn thng

Cc cngthngdng

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Cng truyn thng

IDE Ports SATA Ports

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Bn phm

Bn phm l thit b u vo chun

C 2 chc nng: Nhp d liu

iu khin Cc bn phm chun c 101 phm:

Cc k t ch ci (a-z)

Cc k t s

Cc ton t: +, -, *, /

Cc phm chc nng (F1 F12)

Cc phm iu khin: Ctrl, Alt, Shift, ..

Cc phm di chuyn: Home, End, Page Up, Page Down, Up, Down,

Left, Right, ...

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Ma trn phm

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Ma trn phm Bn phm s dng ma trn vi cc

hng v ct c lm bi cc dy

Mi phm hot ng nh mt

chuyn mch Khi mt phm c n, mt dy

hng s tip xc vi mt dy ct vto thnh mt mch

B iu khin bn phm pht hinmch ng v xem l mt phmn

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Bn phm - Qut pht hin n phm pht hin s n phm, b iu

khin bn phm s qut tt c ccct, kch hot ln lt tng ct

mt. Khi mt ct c kch hot,b iu khin pht hin hng noc kch hot

B iu khin kch hot ct C1 v

kim tra hng R1 v R2

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Nhiu phm n

1 phmc

n

2 phm

n

3 phm

n

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Thao tc bn phm

Khi 1 phm c n, b iu khin bn phm phthin ra s kin v to mt m qut tng ng

Mt ngt bn phm c gi ti my tnh

Khi my tnh nhn c ngt s chy on chngtrnh c m qut v chuyn n thnh m k ttng ng (thng thng l m ASCII)

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Chut my tnh L thit b vo thng dng

Chc nng l iu khin

Cc loi chut: Chut c Chut quang

Chut laser

Chut dy

Chut khng dy

Cc nt chut: Cc nt thng thng: tri, phi, cun

Cc nt khc: Forward, Backward

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Chut c

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Nguyn l hot ng chut c Khi di chuyn chut, bi quay trn

Bi lm 2 trc vi bnh rng quay Mt trc pht hin di chuyn theo chiu dc

Mt trc pht hin di chuyn theo chiu ngang C 2 diod pht nh sng hng ngoi qua cc bnh

rng

nh sng hng ngoi c 2 sensor thu v chuynthnh tn hiu in

Tn hiu biu din di chuyn ca chut s c giti my tnh x l tip theo

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Chut quang

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Hot ng chut quang n Led chiu nh sng (nh sng n sc) qua

lens. nh sng sau c phn x xung mt bnpha di chut

Camera chp nh b mt. T l khong 1500 nh/ 1s B iu khin chut x l v so snh cc bc nh

lin tip tm ra s di chuyn ca chut

Cc tn hiu di chuyn chut c gi ti my tnh x l tip theo

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Chut laser

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Chut laser Chut laser hot ng theo nguyn l tng t nh

chut quang. Mt s im khc: S dng tia laser thay cho tia nh sng ca chut

quang Camera chp nh vi tc cao hn (khong 6000/ 1s)

nhy cao hn

C th lm vic trn hu ht cc b mt

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Mn hnh my tnh

Mn hnh l thit b u ra chun

Hin th text v hnh nh ha

Mt s loi mn hnh: CRT

LCD

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Mn hnh CRT

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Mn hnh CRT trng en

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Mn hnh CRT mu

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Mn hnh CRT mu

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Hot ng ca mn hnh CRT L n chn khng (Cathode Ray Tube) s dng

chm electron c pht ra t cathode ti lpphotpho to cc nh

Chm electron c iu khin bi cc cun lchhng dc v ngang to nh kn mn hnh. Tc chiu l 24 nh/ 1s

Tn hiu video c dng iu khin mt dngelectron

Mn hnh trng en s dng mt chm electron,mn hnh mu s dng 3 chm electron (RGB)

to mt im nh

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Mn hnh LCD

LCD vit tt ca Liquid Crystal Display.

Tinh th lng l cht nhy cm vi nhit vin

u im ca LCD so vi mn hnh CRT: Mng hn, nh hn

Tiu th in t hn

Kch thc c th xem c ln hn

Vi nhc im: Khng h tr a phn gii (resolution)

Cht lng nh khng thc s tt v thi gian p ng chm

Gc nhn hp

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Mn hnh LCD

C 2 loi LCD da vo ngun sng: Backlit:

Gm ng hunh quang pha sau LCD

Rt thng dng cho mn hnh my tnh

Phn chiu (reflective): Thng s dng cho cc ng h s (mu en cc ch s ch ra

khng c nh x)

n gin hn v r

Da trn phn x ca cc ngun sng ngoi

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Mn hnh LCD to nh nh th no? Bn thn tinh th lng khng th pht sng

Tuy nhin, chng c th iu khin lng sng i qua phthuc vo nhit v in

2 loi LCD da vo phng php iu khin: LCD ma trn th ng:

S dng ma trn/ li in xc nh mi im nh theo hngv ct

im giao ca hng v ct c kch hot bng cch gy in tchti ct tng ng v tip t ti hng tng ng

LCD ma trn ch ng: Transistor mng mng (TFT: Thin Film Transistor)

TFT hot ng nh phn t chuyn mch

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Mn hnh LCD to nh nh th no?

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Mn hnh LCD to nh nh th no?

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Mn hnh LCD to nh nh th no? LCD TFT l thit b c iu khin bi cc tn hiu in

Tinh th lng gia 2 lp in cc dn ITO trong sut

Cc phn t tinh th lng c sp xp theo cc hng khcnhau bng cch thay i in p ti in cc ITO

Hng ca cc phn t tinh th lng nh hng trc tip timc thm nhp ca ngun sng, m sau s to vng sng,ti mong mun trong nh, hay cn gi l xm (grayscale)

Mu c to bi cc lp nn lc mu

Mc xm ca im nh c xc nh bi mc in p xcnh t b iu khin d liu

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My in

S dng a d liu ra giy

Cc loi my in: Typewriter-derived printers (my in ba)

Dot-matrix printers (my in kim)

Laser printers (my in laser)

Inkjet printers (my in phun mc)

Colour printers (my in mu)

Multi-function printers (my in a chc nng)

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Fall 2009 Comp. Architecture - Inputs and Outputs 37

My in ba

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Fall 2009 Comp. Architecture - Inputs and Outputs 38

My in kim

http://news.thomasnet.com/images/large/489/489790.jpg

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Fall 2009 Comp. Architecture - Inputs and Outputs 39

My in laser

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Fall 2009 Comp. Architecture - Inputs and Outputs 41

My in laser

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Fall 2009 Comp. Architecture - Inputs and Outputs 42

My in phun

http://www.mobile.ie/wp-content/uploads/2009/07/inkjet-printer.jpg

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Fall 2009 Comp. Architecture - Inputs and Outputs 43

My in phun