Types of Digital Devices Flashcards
(18 cards)
What is a Mainframe computer
A large, powerful computer that can do a lot of complicated jobs quickly and can be used by a lot of people at the same time.
What are Mainframe computers used for?
They are used by large organizations for complex processing tasks such as statistical analysis and bulk data processing.
What is a microprocessor?
The device that controls what a computer does; it takes data as input, does something with it and provides output.
What type of devices do microprocessors control?
Washing Machines, Televisions, and other household appliances. Examples of devices you will consider include personal computers, digital cameras, and home entertainment systems.
Describe a desktop computer
Some desktops are “all in one”. This means that they combine the monitor with the PC hardware.
Describe a laptop
Laptops include a keyboard, a screen, a track pad, and a rechargeable battery. Having these features means that they can be taken away from the desk, which makes them an example of a portable device.
Define portable
Easy to carry or move
Where are personal computers common?
They are common in homes and offices. They come in many shapes and sizes such as desktops and laptops
Give a reason why Desktops are better than laptops
Desktops have more space for components than laptops and often provide users with the option to upgrade them or add additional components.
What is a peripheral device?
Equipment that is connected to a computer and used with it.
Some laptops are called “desktop replacements”, why?
They tend to be larger than other laptops, as well as having a bigger and better-quality screen and higher performance levels
What are single-board computers
Single-board computers (SBCs) are affordable computers used in education.
Give an example of a single-board computer.
The Raspberry Pi Zero is an example of an SBC
Describe a SIM card
Mobile phones use a SIM card to connect to a mobile phone network. SIM stands for subscriber identity module, and a SIM card is used to identify the subscriber to a mobile phone network.
What are specialist phones
Some mobile phones have specialist features to provide users with functions that meet particular user needs. For example, some phones have an emergency button that is linked to a list of emergency contacts. When this button is pressed, the phone will call each person on the list until someone answers
The Alto 2 is an example of a user accessibility need phones, what is the Alto 2
A specialist mobile phone for blind and partially sighted people. It meets its users’ needs because every feature and function is spoken aloud. Other phones provide fewer, large buttons and connections for hearing aids
What is a smartphone
Smartphones are small computers with WI-FI and mobile phone connectivity to allow them to make phone calls and access the internet. They also include features of other devices such as cameras, media players, and hand-held games consoles.
They have a more advanced operating system than other mobile phones. Applications (apps) can be downloaded onto the smartphone, which allows users to customize their smartphone with entertainment, educational, and business features. Most smartphones use a touch screen to allow users to input information.
A virtual keyboard is used to enter text, numbers and other characters.
WCGAV
Due to smartphones having so many features, smartphones use more power than other types of mobile phones. What does this mean?
They have a shorter battery life and need to be charged more regularly than other mobile phones.
