IGCSE Computer Science Paper-1: Specimen Questions with Answers 102 - 103 of 164

Question number: 102

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Name one programming language that is exclusively used for artificial intelligence.

Explanation

Prolog is a programming language that is exclusively used for artificial intelligence.

i) In Prolog the logic is expressed in terms of relations.

ii) The Relations and Queries are constructed using Prolog’s single data type.

iii) The terms are either atoms, numbers, variables or compound terms.

An example program written in Prolog. Prolog can be used by entering queries at the Prolog prompt . In case of no solution Prolog writes no.

Question number: 103

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Explain any three Computer based Access technologies for Blind Students.

Explanation

There are many technologies or products that can help Blind pupils or students in learning:

i) Braille Embosser: It is also known as Braille printer and is a is a piece of very specialized computer hardware. The embosser allows Braille files that have been created on the PC to be produced in hard copy for your child to read.

ii) Mega Dots: It is a programme that operates in a DOS window on a PC particularly popular among transcribers who are intimately familiar with the Braille code and the rules of Braille formatting.

iii) Notetaker: It is also known as Braille notetakers. It allows people knowledgeable in Braille to create documents, read text, keep addresses and appointments, and accesses a list of special utilities. Also most Notetakers are capable of performing tasks which blur the line between portable PDA and note-book computer.

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