uses of computers in household appliances c e l : c o m p u t e r s i n e v e r y d a y l i f e cel...
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Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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Computers At Home
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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Objectives1. State the characteristics of household
devices that are controlled by embedded processors
2. State the factors that affect the use of Embedded Processors
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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• Computers are found in many areas of our life. The type of computer that most
people are familiar with is the desktop computer.
Introduction
A typical desktop computer
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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• Not all computers are shaped like a desktop computer. In fact, some
computers do not look like desktop computers at all.
Introduction
A panel computer
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1.1 Household Appliances that are Computers
Characteristics of a Computer
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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1.1 Household Appliances that are Computers
Characteristics of a Computer
Memory : Stores the amount of time needed for each type of wash
Processing :Controls how much water to use. Controls the movement of the washing drum
Output :Beeping sound when wash is complete
Input :Type of wash required e.g. spin, soak, rinse
Consider the typical washing machine:
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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1.1 Household Appliances that are Computers
Characteristics of a ComputerConsider the typical washing machine:
• It can be classified as a very simple computer.
• The washing machine runsonly 1 program. It cannot beinstalled with other newprograms.
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1.1 Household Appliances that are Computers
• Household appliances that come with embedded processors can be
considered to be very simple computers because the processors have the 4 characteristics of the von-Neumann machine.
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1.1 Household Appliances that are Computers
Common Household Appliances that Have Embedded Processors
Microwave Oven
LCD TelevisionOven for making bread
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1. Input, process, output, memory
2. Pocket calculator, digital watch, digital camera, mobile phone
3. They are special-purpose computers because they cannot be installed with other new programs.
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1.2 A Toy that Has an Embedded Processor
When your equipment needs batteries orelectricity to run, it probably has an embedded processor.
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1.2 A Toy that Has an Embedded Processor
Resistor - The little cylinder with manycoloured strips, which controls electric current flow.
Capacitor - The component that iscoloured orange or green. It stores electricity.
Transistor - The black little plasticblock. This amplifies electric current.
Processor - The long piece of blackplastic with many legs. This controls the motion of the car.
Electronic Component - Description
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By looking at its location, color, shape and size
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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1.3 Factors Affecting the use of Embedded Processors
1.Cost
2. Complexity
3. Power efficiency
4. Knowledge
5. Imagination
The Human Transporter
A complex processor
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1. A computer is any device that has the ability to input, output, process and store data or information.
2. Many household appliances are operated by embedded processors. These are special-purpose computers because they cannot be used for other jobs. Embedded processors help automate dull repetitive tasks.
Summary
Uses of Computers in Household AppliancesUses of Computers in Household Appliances
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3. Embedded processors are more widely-used now.
4. A few embedded processors can be found in household appliances.
5. Exploring the internal components of household appliances can be dangerous because there are components that store electricity.
6. High cost, complexity, high power consumption rate and limited knowledge are factors that used to limit the use of embedded processors.
Summary