1. A keyboard is a peripheral input device that allows a user to enter text and commands into a computer. It contains alphabetic keys, numeric keys, special keys like space bar and function keys. 2. When a key is pressed, a circuit is completed below the key allowing a tiny amount of current to flow. This registers the key press with the computer's processor. 3. Common types of keyboards include mechanical, multimedia, wireless, and membrane keyboards. Keyboards can connect via wired or wireless connections like Bluetooth.

1. pheiphesal starnaje
Page No.
Ques whaut isLpheaiphesal devices 2 A
An4 pheaiphesaldeviceis an intesnal_ox
eXtexna devreethatiaonnect dieectly tea
Computes 0 othe idiitlderice but+
does oleernotContoibuet theCompters
psimasy functon dych asComputin
Apheiphtsa derce. Such asa a Cohputer
moyseox keyboaatha Connects to and
uderks withthe ompuin Someoa
keyboaxa Painfermouse kmonir
ti i o
u2 whautisZntetace
4n A inferface is ashased boundaryacoss
which tavo o moseSeperate omponents
of a tompzutes Spdtem Exchange
information.
The Pace at which indeperdantand often
uneated Systems meet ndiacon or
Lommucate with oach othe the man-
machine intertacei
Oue 3wheut s pheriphesalTnfertace
Ans pheripheral intertacing aKind of
inaraction betuweenpaecessoy and Extena
peipheral derices
ue 4Differene brtween RA k_KoM2

2. 143 A Date:/
Page opoM
RAM
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Oue5.IS CPUSpealKer memory monto
painerRA a_periphexd device.
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CPU NO CPU is not a pesipheral
idevice because aCompvex
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aa CP
peakex-yesSpeakeris A Comman
e xteinal device
Memoxy NoMemoryiS nota
pezipheral device
because the data proce.ssed
is Hoxed inside mema

3. Date
Page No.
and withouu amem.or
Monitoxyes moniter islaipexipherak
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4. Date:
PageNo.
Assignment
Que1 hat is keyboaad anditstypes9
AntAkeybeaxd is apexiphesa device
tha ehableSa usex to inputtaf
Into a Computer 2aany0th
electaonic machinery Akeyboaxd is 0
input device and is thmest asic
way fos the uses to CommunIcafe
oith aCempu
Iypes of_
Computeskeyboad
(1 CIaminf keghoard
Laminpkeybaaxd are Speclfically
designed to nhante youn gamin
experience and ncxeace youriulds
These fypes of keyboards are geaed
touward usess who Spend hours while
playingCompute ames
& Mechanical keybaasd
Mechanical _keyboaxd are one of the
types of
aBe expensive
impexant Keyboaxds. They
and requixe a itHe
to understand heu they
leaxning-
wWork

5. Date:
Page No
13) Multimedia keyboard
ultimedia Keyboard axe very Similar to-
Common keybaards but wth the additi
of a sexie of keys thu allouw you to
Contaodisecty the most Commnon
funetions f multimtdia Comtent play.e
Such as playStpp. kesume, Rewind Mutz
Volume etc
izeless keyboard
Reluing_on aa oadio foequeneyantenna o
(4)
intsartd to keep yoy Conneciod wireless RE
keyboaxds offe ia bitof freedom in
youx Camputingactivities
5) uexty keyboaxds
Any keuhoaxdis Querty keyhoaxd
iftheJetters 8 0 E,RTYare presen
togethe in the first o of the letters
QERTY Keyboard makes typingeaSier by
placinginequemily used adakent_lette
pairs as far faomeach other as
possible
L6) Membrane Keyboazd
ha mnembxane Keyboaxd Vou oill no
find any gap betuen the keys
membrane Covess pzegSuTeSensitive
keys. The keyboard 1s mox 0X Jess a flat

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Page No.
SutaceMembxane keybebardcae affarcabk|
and noiseless while typing
) Elexible keyboaxd
Elexiblekeyboard axea hybmd_hedsaren
laptopkeybodsd and a sfandaxd
keybouad Sinceflexible_keyhaaxds_am
made of silicone, they an be bent
These keyboardsare lexible enugh
tobe dijed and as uSually tonnicted
thz ough USB
LS)Poiectton keyhoard
Tais isa fuyuxistie keyboaxd desian in
which the key e_a
ahologam
pxecon onto any Surfac hedevice
defects What you pe on theholosann
poojetion ahd secoxds keystaokes
acdordna
hologram
9) Buetooth keyhoaxd
Bluetooth kyboaxds ae atipe_o
wixeless keyßoaxd that wosRs on
Buetoothtechnology These Keyhaards
need tht host deviees to have a
Blue-tooth Celver

7. Date:
PageNo.
Wred skeytttexdkeybaaxds
lixed keyboard:otfer an affaxdab/e and
etfortlessSwep if_yoy wanttofind a
keyboard Stylethat Suits youY necds
Quea.whau is fule foomof keyboand
Ans KEYBDARD ful foum ks Etam
Y Boad Opexating- t8z Respon
Dixectly
d d
Oue3 Hou does a Computerkeyboaxduoonik?
AnsAkeyboaxd sa lot 0ke a
miniaae Computex T has its ouwn
prOcesSo& and ciztuitry tha caies
intormaton toand Paemthat
poocesso. A_ag pust of this
CiuitaY makes up the key maax.
The key mataix is a gaid ot CieTuits
undexHeath the ke Inall keyboand
lexceptn for capaciivemodels,ohjch
well dis.cuss in the nextSection).
each ciocuifis baokenah a point
beloueach key when yospTess e
keyi press a soith Completing
th iacuit andoalloioing a tiny
amoun of tument toUfou Uthdus
The mechanjca actton oftheSoit

8. Date:
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Causes Som Vbrat1on, called_bounte,
which the panLesso filters out
Tfyos pressand hold akey the
processo Xecognizes asLhe
eguivlen ofpressingaReyreptatuj|
Que4 Hbuo ManyType of Keys ona
KeyboazgU2
n pes of keys inalkeuboaxd
Alphabet keys
NvmberK
Specia keys
functionkeys
Nevigation keys
(1)Aphabe keys A
alphabetkeysarepsesent ona
Keyboard fro Atoz these keys
L ar no preaenfslin the alphabeira
ordes Thesekeys are uSedto type
words,Sentencis orparagxuphs
aumbxkeysi-
hese Kays axeused fox typing numbes
TheseKeys arepresentabov the
top D ofthe alphebe-keys and
also prestn Onthtaiqhts1de of
ithe keybnard

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L3)Speclalkeys:
keyboaxd has more speicl keys such
asSpace bar key. caps ocK key
backspuce keyshift_key enfer_k1y.-
Symbolkeys and tab _keyetc
4)function keys
£unction keys arepresent on
keybnard. Theykeys are perform Specifi4
tasks. They aspzesent on the topmos
ouw of the keyboaxd label EL; FL,B=
Et F5 F6E1 ER, F ElDEL and El2
hesekeys have diflexent functions
for diffexentpogaams
L5)Navigation keys:-
Ever Keyboaxd has Somepecjal
haviaHon keys Such as Curso
Contokeys'Azro keys), Home Key.
End key etzl Al pPag
Down, Delete, Thser et