IGCSE Computer Science Paper-1: Specimen Questions with Answers 66 - 68 of 164

Question 66

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Write in Short

Short Answer▾

Define Nested loop.

Explanation

A Nested Loop is defined as a loop running within another loop. The first loop is known as the Outer loop and the insider loop is called Inner loop. A break in within the inner or outer loop would interrupt this process. In nested loops, the inner loop must terminate before the outer loop.

For example

  1. for i = 1; i <= 5; i ++
  2. {
  3.  Cout ≪⧵n;
  4.  for j = 1; j <= i; j ++
  5.  Cout ≪ "⚹";
  6. }

Output

⚹

⚹⚹

⚹⚹⚹

⚹⚹⚹⚹

⚹⚹⚹⚹⚹

Question 67

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Write in Short

Short Answer▾

List two ways of protecting data against the system failure.

Explanation

To protect data against the system failure, we can create backup in an advance on daily basis.

We should take precautions like checking the regular power supply to our computers, checking the functioning of the various other components of the computer both software and the hardware ones regularly to prevent any component failure to ensure uninterrupted working.

Question 68

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Appeared in Year: 2013

Describe in Detail

Essay▾

State some of the important uses of spreadsheets.

Explanation

Spreadsheet is an electronic document in which data is arranged in the rows and columns of a grid. This can be manipulated and used for calculations purpose.

Other Uses

  • Students can use spreadsheets for tracking the list of books they have read. Spreadsheets can also be used by the students for checking their current application status.
  • Visual displays of class schedule and weekly commitments can be created using spreadsheets.
  • Spreadsheets can also be used to set goals and monitoring the progress of the students i.e. for the purpose of progress monitoring.
  • Teachers as well as students spreadsheet to organize their thoughts while making important decisions.

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