Heat supplied to the cathode by directing a current through a coil of wire is called
1.Electron gun
2.Electron beam
3.Filament
4. Anode and cathode
Posted Date:-2021-10-25 09:31:03
The devices which converts the electrical energy into light is called
1.Liquid-crystal displays
2.Non-emitters
3.Plasma panels
4.Emitters
Posted Date:-2021-10-25 09:31:03
The maximum number of points that can be displayed without overlap on a CRT is referred as
1.Picture
2.Resolution
3.Persistence
4.Neither b nor c
Posted Date:-2021-10-25 09:31:03
Which devices provides positional information to the graphics system ?
1.Input devices
2.Output devices
3.Pointing devices
4.Both a and c
Posted Date:-2021-10-25 09:31:03
______ is used for detecting mouse motion.
1.Optical sensor
2.Rollers on the bottom of mouse
3.Both a and b
4.Sensor
Posted Date:-2021-10-25 09:31:03
_______ is used for 3D positioning and modeling animation and other application.
1.Trackball
2.Spac ball
3.All of the mentioned
4.None of the mentioned
Posted Date:-2021-10-25 09:31:03
________ are used to measure dial rotations.
1.Potentiometers
2.Volta meter
3.Parameter
4.Only a
Posted Date:-2021-10-25 09:31:03
________ stores the picture information as a charge distribution behind the phosphor-coated screen.
1.Cathode ray tube
2.Direct-view storage tube
3.Flat panel displays
4.3D viewing device
Posted Date:-2021-10-25 09:31:03
Aspect ratio means
1.Number of pixels
2.Ratio of vertical points to horizontal points
3.Ratio of horizontal points to vertical points
Posted Date:-2021-10-25 09:31:03
In graphical system the array of pixels in the picture are stored in
1.Memory
2.Frame buffer
3.Processor
4.All of the mentioned
Posted Date:-2021-10-25 09:31:03
In LCD the refresh rate of the screen is
1.60 frames/sec
2.80 frames/sec
3.30 frames/sec
4.100 frames/sec
Posted Date:-2021-10-25 09:31:03
In which system the Shadow mask methods are commonly used
1.Raster-scan system
2.Random-scan system
3.Only b
4.Both a and b
Posted Date:-2021-10-25 09:31:03
On a black and white system with one bit per pixel the frame buffer is commonly called as
1.Pix map
2.Multi map
3.Bitmap
4.All of the mentioned
Posted Date:-2021-10-25 09:31:03
Potentiometers mounted at the base of the joystick measures
1.The amount of movement
2.The direction
3.Position
4.Resolution
Posted Date:-2021-10-25 09:31:03
Random-scan system mainly designed for
1.Realistic shaded screen
2.Fog effect
3.Line-drawing applications
4.Only b
Posted Date:-2021-10-25 09:31:03
Space ball provide________ degree of freedom.
1.10 degree
2.6 degree
3.8 degree
4.12 degree
Posted Date:-2021-10-25 09:31:03
The device which is used to position the screen cursor is
1.Mouse
2.Joystick
3.Data glove
4.Both a and c
Posted Date:-2021-10-25 09:31:03
The most commonly used input device is
1.Mouse
2.Keyboard
3.Scanner
4.Printer
Posted Date:-2021-10-25 09:31:03
The number of pixels stored in the frame buffer of a graphics system is known as
1.Resolution
2.Depth
3.Resalution
4.Only a
Posted Date:-2021-10-25 09:31:03
The primary output device in a graphics system is_________
1.Scanner
2.Video monitor
3.Neither a nor b
4.Printer
Posted Date:-2021-10-25 09:31:03
The process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer is called
1.Rasterization
2.Encoding
3.Scan conversion
4.True color system
Posted Date:-2021-10-25 09:31:03
Trackball is
1.Two-dimensional positioning device
2.Three- dimensional positioning device
3.Pointing device
4.None of the mentioned
Posted Date:-2021-10-25 09:31:03
Which display devices allows us to walk around an object and view it from different sides.
1.Direct view storage tubes
2.Three-dimensional devices
3.Flat panel display devices
4.Plasma panel display devices
Posted Date:-2021-10-25 09:31:03
Which is the ball that can be rotated with the fingers or palm of the hand?
1.Space ball
2.Trackball
3.Only a
4.oth b and c
Posted Date:-2021-10-25 09:31:03
Which keys allows user to enter frequently used operations in a single key stroke?
1.Function keys
2.Cursor control keys
3.Trackball
4.Control keys
Posted Date:-2021-10-25 09:31:03