IGCSE Information & Communication Technology Paper-1: Specimen Questions with Answers 14 - 15 of 46

Question 14

Appeared in Year: 2009

Describe in Detail

Essay▾

A floor turtle can use the following instructions:

Table of the Instruction and Meaning
InstructionMeaning
PENUPLift the pen
PENDOWNLower the pen
LEFT tTurn left t degrees
RIGHT tTurn right t degrees
FORWARD nMove n mm forward
BACKWARD nMove n mm backward
Shape

Write the set of instructions to draw this shape?

Explanation

Pendown

  • Left 90
  • Forward 20
  • Right 90
  • Forward 60
  • Right 90
  • Forward 30

Penup

  • Forward 40

Pendown

  • Forward 40
  • Right 90

Penup

  • Forward 60
  • Right 90

Pendown

  • Forward 20

Penup

  • Forward 5

Pendown

  • Forward 25
  • Left 90

Question 15

Appeared in Year: 2009

Question

MCQ▾

Choose two safety problems that may be caused by the use of computers

Choices

Choice (4)

a.

RSI

b.

Trip

c.

Electrocution

d.

Both c. and b. are correct

Answer

d.

Explanation

Along with lots of advantages there come lots of problems that may be caused by use of computers. The problems can be both health related and safety related.

Some of the safety related problems include:

  • Electrocution: Electrocution is death or severe injury caused by electric shock, electric current passing through the body. The word is derived from “electro” and “execution” , but it is also used for accidental death.
  • Trailing Cables: Computer equipment is often connected to lots of cables: power, network, etc. If these cables are laying on the floor, they can cause people to trip over them. This can be avoided by placing cables inside cable ducts, or under the carpet/flooring.
  • Spilt Drinks or Food: If any liquids are spilt on electrical equipment, such as a computer, it can result in damage to the equipment, or an electric shock to the user. This can be avoided by keeping drinks and food away from computers.
  • Overloaded Power Sockets: Plugging too many power cables into a socket can result in the socket being overloaded, overheating, and a fire starting. This can be avoided by not plug in too many cables into a socket. And by always making sure there are fire extinguishers nearby.
  • Heavy Objects Falling: Many items of computer equipment are very heavy: CRT monitors, laser printers, etc. Heavy items can cause serious injury if they fall on people. This can be avoided by making sure equipment is placed on strong tables/shelves.

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