A computer is an electronic device capable of taking an input , processing data , storing information and providing an output .

What is the difference between data and information?

Data that is input is raw, unprocessed information, while information is data that people understand .

Define mainframe computer .

A mainframe computer is a computer with huge processing power and data storage capabilities , built to handle enormous amounts of data and carry out complex calculations.

Give three qualities a mainframe computer is designed to have.

A mainframe is designed to be secure and reliable , and to support large volumes of simultaneous users .

Define microprocessor .

A microprocessor is an integrated circuit (IC) that contains a central processing unit (CPU) and is embedded into devices to execute instructions.

Give three home systems that a microprocessor is used to monitor and control.

Microprocessors monitor and control central heating systems , security alarm systems and home entertainment systems .

Give two reasons why a laptop is typically less powerful than a desktop computer.

A laptop has power constraints due to its size and is designed with a focus on extending battery life .

True or False? A laptop computer is easily upgradable.

False. Laptop components are integrated for size and efficiency , so a laptop is not easily upgradable , unlike a desktop whose parts can be replaced to increase performance.

Give three advantages of a laptop computer.

A laptop offers portability , so it is easy to carry and use on the go, flexibility , giving access to the internet and resources from anywhere, and multi-functionality for various tasks.

What does a mobile phone use to transmit information between people and devices?

A mobile phone transmits information using radio waves .

Smartphones use subscriber identity module ( ) cards to link the device to a network carrier.

Smartphones use subscriber identity module ( SIM ) cards to link the device to a network carrier.

Give three features a specialist phone designed for older users might have.

A senior phone typically has larger buttons , easy to read displays , a simplified user interface , emergency alert buttons and hearing aid compatibility .

Define multifunctional device .

A multifunctional device is a device designed to carry out a wide range of tasks , combining functions that would usually be separate.

Convergence is the merging of technologies that would usually be separate, and it led to the rise of smartphones.

What does a games console use to deliver high quality, smooth gameplay?

A games console uses powerful processors and graphics , along with online capability and controllers for interactivity.

IGCSEICTEdexcelFlashcards1. Digital DevicesTypes of Digital Devices

Types of Digital Devices (Edexcel IGCSE ICT): Flashcards

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Define computer.

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Define computer.
A computer is an electronic device capable of taking an input, processing data, storing information and providing an output.
What is the difference between data and information?
Data that is input is raw, unprocessed information, while information is data that people understand.
Define mainframe computer.
A mainframe computer is a computer with huge processing power and data storage capabilities, built to handle enormous amounts of data and carry out complex calculations.
Give three qualities a mainframe computer is designed to have.
A mainframe is designed to be secure and reliable, and to support large volumes of simultaneous users.
Define microprocessor.
A microprocessor is an integrated circuit (IC) that contains a central processing unit (CPU) and is embedded into devices to execute instructions.
Give three home systems that a microprocessor is used to monitor and control.
Microprocessors monitor and control central heating systems, security alarm systems and home entertainment systems.
Give two reasons why a laptop is typically less powerful than a desktop computer.
A laptop has power constraints due to its size and is designed with a focus on extending battery life.
True or False?
A laptop computer is easily upgradable.
False.
Laptop components are integrated for size and efficiency, so a laptop is not easily upgradable, unlike a desktop whose parts can be replaced to increase performance.
Give three advantages of a laptop computer.
A laptop offers portability, so it is easy to carry and use on the go, flexibility, giving access to the internet and resources from anywhere, and multi-functionality for various tasks.
What does a mobile phone use to transmit information between people and devices?
A mobile phone transmits information using radio waves.
Smartphones use subscriber identity module ( ) cards to link the device to a network carrier.
Smartphones use subscriber identity module (SIM) cards to link the device to a network carrier.
Give three features a specialist phone designed for older users might have.
A senior phone typically has larger buttons, easy to read displays, a simplified user interface, emergency alert buttons and hearing aid compatibility.
Define multifunctional device.
A multifunctional device is a device designed to carry out a wide range of tasks, combining functions that would usually be separate.
Define convergence.
Convergence is the merging of technologies that would usually be separate, and it led to the rise of smartphones.
What does a games console use to deliver high quality, smooth gameplay?
A games console uses powerful processors and graphics, along with online capability and controllers for interactivity.

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