Computer Test 2
Touch Screen is…………
  • Both a & b above
  • None of these
Explanation:
 

A touch screen functions both as an input and an output device. It allows users to interact by touching the screen directly to input commands or data through gestures. Simultaneously, it displays visual output such as images, videos, and the graphical user interface (GUI), making it versatile for interactive applications and displays.

………. printer is a non-impact printer and is quite in working
  • Inkjet
  • Laser
  • Thermal
  • Dot matrix
Explanation:

Inkjet printers are non-impact printers that create images by spraying tiny droplets of ink onto paper. They are known for their quiet operation and ability to produce high-quality prints, making them suitable for various applications where noise level is a consideration, unlike dot matrix printers which are noisy due to their impact mechanism.

……… are used for plotting graphs and design on papers
  • Trackball
  • Joystick
  • Light pen
  • Plotters
Explanation:

Plotters are specialized devices used for producing detailed and precise graphical outputs on paper. They excel in creating large-scale graphics such as architectural plans and engineering diagrams by drawing continuous lines directly onto paper. This distinguishes them from other input devices like trackballs, joysticks, and light pens, which serve different interactive purposes with computers.

Daisy wheel, Drum, chain etc are the ………….
  • Flow charts
  • Mouse
  • Key board
  • Printers
Explanation:

Daisy wheel, drum, and chain printers are all types of impact printers. They operate by physically striking a ribbon to transfer ink onto paper, with each type using a different mechanism to achieve this. These printers were common before the advent of modern inkjet and laser printers, known for their distinctive printing methods and capabilities.

The first electronic computer was developed by
  • J.V. Attansoff
  • Bill Gates
  • Simur Cray
  • Winton Serf
Explanation:
 

J.V. Atanasoff is credited with inventing the first electronic digital computer, the Atanasoff-Berry Computer (ABC), in the late 1930s and early 1940s. The ABC used binary digits and electronic switches to solve linear algebraic equations, marking a significant milestone in the history of computing as the first electronic computer.

…………. computer is a medium sized computer
  • Micro
  • Mainframe
  • Super
  • Mini
Explanation:
 

A mini computer, also known as a midrange computer, occupies a niche between microcomputers (personal computers) and mainframe computers. It offers more processing power and capability than microcomputers but is less powerful and less expensive than mainframe computers. This makes minicomputers suitable for medium-sized businesses and organizations needing robust processing capabilities without the cost of a mainframe.

Switching device of fifth generation computer is——–
  • Vacuum tubes
  • Transistors
  • IC
  • Explanation:
     

    Very Large Scale Integration (VLSI) technology is crucial for fifth-generation computers because it allows for the integration of millions of transistors onto a single chip. This capability is essential for the complex and powerful computing required for artificial intelligence (AI), parallel processing, and natural language processing, key features of fifth-generation computing.