Question Discussion & Solution

The correct answer is option 4, i.e. ZIP.

Additional Information

• A CASE tool is a generic term used to denote any form of automated support for software engineering, in a more restrictive sense a CASE tool can mean any tool used to automate some activity associated with software development
• Some of the CASE tools assist in phase-related tasks such as specification, structured analysis, design, coding, testing, etc. and others to non-phase activities such as project management and configuration management
• The primary objectives of using any CASE tool are:

1. To increase productivity.
2. To help produce better quality software at a lower cost.

The correct answer is Charles Darwin.

Explanation:

Charles Darwin:

• Darwin proposed a theory of evolution called natural selection in the year 1859.
• According to it those populations which are a better fit (reproductively fit) in an environment will be selected by nature and will survive more.
• Darwin's theory of natural selection is popularly known as 'Darwinism'.
• English naturalist Charles Darwin developed the idea of natural selection after a five-year voyage to study plants, animals, and fossils in South America and on islands in the Pacific.
• Darwin conducted a sea voyage in a sailing ship called H.M.S Beagle as a part of his experiments on the theory of evolution.
• Charles Darwin became almost universally thought of as the "Father of Evolution".
• Darwin's process of natural selection has four components:
  • Variation
  • Inheritance
  • High rate of population growth
  • Differential survival and reproduction

Thus, Charles Darwin proposed the theory of biological evolution by natural selection.

Additional Information 

Gregor Johann Mendels Theory:

• Mendel used a number of contrasting visible characters of garden peas- round/wrinkled seeds, tall/short plants, white/violet flowers, and so on.
• He took pea plants with different characteristics- a tall plant and a short plant, produced progeny from them and calculated the percentages of tall or short progeny.

William Beaumont:

• William Beaumont (November 21, 1785 – April 25, 1853) was a surgeon in the U.S. Army.
• He became known as the "Father of Gastric Physiology" following his research on human digestion.
• In 1822, an employee of the American Fur Company named Alexis St. Martin was accidentally shot.
• Dr Beaumont treated his wound but expected St. Martin to die from his injuries.
• Despite this dire prediction, St. Martin survived but with a hole in his stomach that never fully healed.
• He was hired as a handyman by Dr Beaumont to observe digestive processes.​

Ernst Haeckel:

• The great scientist Ernst Haeckel was given credit to coin and express the definition of the term “Ecology”.
• ​He was a german scientist.

People – A, B, C, D, E and F

All are facing north.

1. C is sitting 2^nd to the left of D.

2. Only two person sits between A and B.

3. E is sitting at the extreme left end and neither F nor A is the immediate neighbour of E.

4. B is sitting to the left of A.

As, F and A are not the immediate neighbours of E, Case I is eliminated and the arrangement with the combination of Case II, thus formed is:

Hence, D is at the extreme right end.

The correct answer is Projector.

Important Points

•  Projector
  • ​A projector is an optical device that projects an image (or moving images) onto a projection screen.
  • There are four main types including;
    • ​DLP: Digital Light Processing, 
    • LCD: Liquid Crystal Display
    • LCOS: Liquid Crystal on Silicon. 
    • Laser projectors 

​Key Points

• Output device
  • An output device is any hardware device used to send data from a computer to another device or user.
  • Some of the output devices are:
    • Visual Display Units (VDU)
    • Monitor, Printer,
    • Graphic Output devices,
    • Plotters, Speakers.

Additional Information

• Mouse
  • A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. 
• Optical Character Recognition, or OCR
  • ​It is a technology that enables to convert different types of documents, such as scanned paper documents, PDF files or images captured by a digital camera into editable and searchable data.
• Webcam
  • A webcam is a camera that connects to a computer.
  • It captures still pictures or motion video.
  • with the aid of software, can transmit its video on the Internet in real-time.