Lesson 1 computer basics Flashcards
what are the three main functions of a system?
processing, transferring and storing information
Types of information
Videos, words, numbers, sound
what is data made up of
binary digits 0 and 1s
what do 0 and 1 represent?
The state of the transistors on and off
can computers be built to suit a particular task?
what does the internet allow us to do?
Share information Further and quicker
what does a computer need to run?>
hardware software and a user
what does a computer do with data
takes what the user inputs and manipulates it
what hardware can be used outside of the case?
how is it connected?
Peripheral devices - via a USB or ports
what is the basic environment a PC needs
Operating system OS
what happens when data is input? FDE?
The information is stored in the RAM
the CPU fetches the data and processes it
it creates instructions telling other components what to do
it sends the instructions to the RAM
a user will enter data via a peripheral
the processed data is shown to the user
allows users to share data to other computers connected on the same network
non volatile memory which only stores data when electricity is moving through the computer