Unit-1; Digital Devices Flashcards
(21 cards)
CPU
Central Processing Unit
Mainframe Computers
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.
Microprocessor
The device that controls what a computer does; it takes data as input, does something with it and provides output.
Who uses mainframe computers?
Used by large organisations for complex processing tasks such as statistical analysis and bulk data processing.
What are microprocessors used for?
Used to control washing machines, televisions and other household appliances.
PC stands for?
Personal computer
Upgrade
to make the computer better and able to do more things
Peripheral devices
equipment that is connected to a computer and used with it.
What is the similarity between PC’s , laptops and desktops?
They come in many different shapes and sizes.
Difference between laptops and desktops
Desktops have more space for components than laptops and often provides users with the option to upgrade them or add additional components.
Downside of desktops
Needs peripheral devices, needs more power than a laptop, isn’t portable.
Examples of a peripheral device deeded for most desktops
Monitor, printer, mouse and keyboard
Combines the monitor with other PC hardware
Combines the monitor with other PC hardware
Physical computing
Interactive systems that can sense and respond to the world around them
What kind of laptop is good as a desktop replacement
Bigger and better quality screens and higher performance levels
SIM stand for
Subscriber identity module
What is a SIM card used for?
Used to identify the subscriber to a mobile phone network
What is an example of a feature only found on a specialist phone?
An emergency button linked to a list of emergency contacts
Specialist phone
A phone that has specialist features that provide users with functions that meet particular user needs
Wi-fi stand for
Wireless fidelity
the function of WIFI
