1.2 What is a computer?. hardware softwareA computer is a machine [or device/ hardware] that stores and processes data according to a list of instructions.

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Presentation transcript:

1.2 What is a computer?

hardware softwareA computer is a machine [or device/ hardware] that stores and processes data according to a list of instructions - a program [software]. It cannot think or reason. It only carries out instructions given to it. The set of instructions is called a program. Different programs allow a computer to perform different tasks.

Computer Basics C O B : C O M P U T E R S B A S I C S COB An Intelligent System von-Neumann machine Comparable to the brain’s functions Blueprint of an intelligent system

Computer Basics C O B : C O M P U T E R S B A S I C S COB An Intelligent System What are these? Input Process Memory Output

1.2 Characteristics of a computer

By looking at the picture: what are you doing? Looking at the images nearby... and far away

Brain to think what you have seen Memory to store what you have seen see Eyes are used to see the picture Hands to draw what you have seen. 1.2 Characteristics of a computer

When 2 friends talking

Brain to think what have been said Memory to store what have been said Ears to listen to what have been said Mouth to react to what have been said 1.2 Characteristics of a computer

Brain to think Memory to store Eyes to seeHands to draw 1.2 Characteristics of a computer Process Output Store Input

Brain to think what have been said Process Output Store Memory to store Ears to listen Mouth to talk Input 1.2 Characteristics of a computer

inputIt is able to input information. processIt is able to process information. storeIt is able to store information. outputIt is able to output information

Computer Basics C O B : C O M P U T E R S B A S I C S COB An Intelligent System Human  Computer Receives data through our senses  INPUT Processes data  PROCESS Remembers data  MEMORY Reacts to processed data  OUTPUT

Computer Basics C O B : C O M P U T E R S B A S I C S COB An Intelligent System von-Neumann machine Comparable to the brain’s functions Blueprint of an intelligent system

1.2 What are the characteristics of a computer?

1.2 What are the four Characteristics of computers: Computers are able to Input Process Store Output data and information

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