ITPEC IP April 2023 Question 87
Which of the following is the system that is housed in home electric appliances, such as rice cookers and air conditioners, and is used to implement the specific functions of such appliances?
Explanation
Embedded system — a computer built into a product such as a rice cooker or air conditioner to carry out that product's own functions.
An embedded system is a microcomputer with dedicated software (firmware) placed inside a device. In a rice cooker it reads the temperature sensor and controls the heater and timer; in an air conditioner it reads the room temperature and drives the compressor and fan. It does one job for its device, often with real-time constraints and limited memory and power, rather than running general-purpose applications like a PC.
Answer (c)
Why not others:
- •(a) Expert system — an AI system that stores specialists' knowledge as rules and infers answers, such as diagnosis support; it is defined by what it does, not by being built into an appliance
- •(b) Enterprise system — a system that supports a company's business, such as accounting, sales or ERP
- •(d) Simplex system — a configuration with a single set of equipment and no standby, contrasted with duplex and dual systems; it describes redundancy, not a controller inside a product
Key rule: A computer housed in a product that controls only that product's functions is an embedded system; home appliances, cars and industrial machines all depend on them.
Business Industry · AI-written, may contain errors
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