Computer
Science- (Computer Devices)
Part-1
1) Most of the keyboard have_____________ keys
a)
106 c) 104
b)
105 d) None
2) A
small microprocessor in the keyboard detects the change in current and
generates a number called____________
a)
Scale code c) alphanumeric code
b)
Scan code d) None
3) __________
helps to draw picture on the screen
a)
Keyboard c)
Light pen
b)
Monitor d)
Joystick
4) ___________
are used to provide data to the processing unit
a)
Keyboard c)
a & b
b)
mouse d)
monitor
5) The___________
helps in playing games in computer
a)
Mouse c) Cursor
b)
Joystick d) none
6) Name
the device that works similar to mouse?
a)
Keyboard c)
cursor
b)
Track ball d)
None
7) The_________
is also one of the input device
a)
CPU c)
paddle
b)
Plotter d)
none
8) __________
device converts graphic information into electronic signals that are sent to
the computer screen
a)
Graphic pad c)
Paddle
b)
Tablet d)
a & b
9) __________
device converts our voices into electronic pulses
a)
Electronic signals c)
voice recorder
b)
Speech synthesizer d)
All the above
10) Computer
keyboard is__________ keyboard
a)
Magnetic c)
Electronic
b)
Electric d)
a & b
11) A
standard keyboard is known as_________ keyboard
a)
Numeric c)
Alpha-numeric
b)
Alphabet d)
a & c
12) __________
is used to give space between words of a sentence
a)
Enter key
c) Back
space
b)
Space bar d)
all the above
13) The___________
is used to end any program
a)
Enter key c)
Alpha-numeric
b)
Escape key d)
all the above
14) The____________
are navigation keys are used to move the cursor to desired place on the screen
a)
Arrow key c)escape
key
b)
Caps key d)
all the above
15) _________
is a pointing device
a)
Mouse
c) pointer
b)
Cursor d) all the above
16) There
are about_________ function keys are used to perform special functions
a)
6 c)
12
b)
18 d)
None
17) The
invention of________ reduced usage of keyboard
a)
mouse c)
Joystick
b)
CPU d)
None
18) In
a mechanical mouse___________ is used to
detect the movement
a)
Rubber ball c) roller
b)
Tracker ball d)
all the above
19) Laser
mouse is a____________ mouse that uses Laser light
a)
Mechanical
c)
laser
b)
Optical d)None
20) __________
keys is used to delete preceding character
a)
Back space c) Space bar
b)
Arrow d) all the above
21) ____________
works likes a Xerox machine
a)
Printer c)
light pen
b)
Scanner d)
a & b
22) ___________
is a mike, which is connected to the computer t accept data in sound waves
a)
Micro phones c)
recorder
b)
Speech synthesizer d)none
23) _________
is a device that reads the data in the form of Barcodes with the help of
optical reader
a)
Optical reader c) Voice reader
b)
Barcode reader d)None
24) ______
device can recognize character printed using a special magnetic ink containing
Iron oxide
a)
OCR c)
MICR
b)
Touch screen d)
None
25) _________
monitors are designed with touch sensitive screens that allow enter the input
data by using tip of the finger
a)
OCR
c)
MICR
b)
Touch screen d)None
Answers:
1)
104 keys 2)
Scan
code 3)
Light
pen 4)
a &
b 5)
joy
stick 6)
track
ball 7)
paddle
8)
a &
b 9)
speech
synthesizer 10)
Electronic 11)
Alphanumeric 12)
Space
bar 13)
Escape
key
14)
Arrow key 15)
Mouse 16)
12 17)
Mouse 18)
Roller 19)
Optical
mouse 20)
Back
space
21)
Scanner 22)
Microphone 23)
Barcode
reader 24)
MICR 25)
Touch
screen
No comments:
Post a Comment