×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 27 December, 2023

  • 2 Min Read

A Touchscreen

Between 2007 and 2013, capacitive touchscreens overtook resistive touchscreens in the consumer electronics market.

Invention – The 1st touch screen was invented in 1965 by E.A. Johnson of U.K, a capacitive device.

Function – It is a surface that combines 2 functions

    • To receive inputs for a computer (say, tapping on an app)
    • To display the output (launching the app).
  • Working – It consists of 3 main components

A touch sensor – It has an electrical current going through it and touching the screen causes a voltage or signal changes which are used to determine the location of the touch.

Main technology used in sensors are

    • Resistive
    • Capacitive
    • Surface Acoustic Wave(SAW)
    • Infrared LED or Optical

A controller – It takes information’s from the touch sensor and translates it into information the PC can understand.

A software Driver – It allows the touch screen and computers to work together.

Applications – Smartphones, ATM machines, TVs, refrigerators, e-readers, billing systems, and electronic voting machines (EVMs).

Source:

  • 23 December, 2023

  • 2 Min Read

A Touchscreen

Between 2007 and 2013, capacitive touchscreens overtook resistive touchscreens in the consumer electronics market.

  • Invention – The 1st touch screen was invented in 1965 by E.A. Johnson of U.K, a capacitive device.
  • Function – It is a surface that combines 2 functions
    • To receive inputs for a computer (say, tapping on an app)
    • To display the output (launching the app).
  • Working – It consists of 3 main components
  • A touch sensor – It has an electrical current going through it and touching the screen causes a voltage or signal changes which are used to determine the location of the touch.
  • Main technology used in sensors are
    • Resistive
    • Capacitive
    • Surface Acoustic Wave(SAW)
    • Infrared LED or Optical
  • A controller – It takes information’s from the touch sensor and translates it into information the PC can understand.
  • A software Driver – It allows the touch screen and computers to work together.
  • Applications – Smartphones, ATM machines, TVs, refrigerators, e-readers, billing systems, and electronic voting machines (EVMs).

Source:


Anti-Defection Law in India

The Supreme Court of India recently gave a final three-week deadline to the Telangana Assembly Speaker to decide pending disqualification petitions against defecting MLAs under the Anti-Defection Law. What is the Anti-Defection Law? The Anti-Defection Law was introduced through the 52nd Amendment (1985), which added the Tenth Schedule to the

Rat-Hole Mining

A major disaster unfolded in East Jaintia Hills, Meghalaya, when at least 18 workers died following an explosion in an illegally operating rat-hole coal mine. This incident highlights the continued prevalence of rat-hole mining despite bans imposed by the National Green Tribunal (NGT) and the Supreme Court of India. Rat-hole mining is driven

India’s Aviation Sector

India’s aviation sector has grown rapidly, becoming a major economic success story. However, regulatory oversight has not evolved at the same pace. Data-driven monitoring of fares and market behavior is essential to ensure fair competition, prevent market abuse, and shift from reactive crisis management to proactive regulation. Challen

Federalism in India

Recently, a high-level committee on Union–State relations submitted its first report to the Government of Tamil Nadu. The report examines the distribution of powers and responsibilities between the Union and the States, highlighting ongoing debates regarding the balance between central authority and state autonomy. This discussion is clos

India–UAE Economic Partnership

The relationship between India and the United Arab Emirates has evolved from a traditional energy-based partnership into a comprehensive economic and strategic relationship. Over the years, strong political trust, growing trade, and expanding investments have transformed bilateral ties into a diversified economic corridor. The economic partnership

DNA

22 Mar,2026

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW