unit 1 Flashcards
(13 cards)
what are the 3 main factors affecting the CPU
cache, number of cores, clock speed
what is cache
High speed RAM which is built into the processor
What is clock speed
number of cycles per second, measured in hertz
what do cores do
carry out simultaneous instructions making the computer better at multitasking
what is an embedded system
an embedded system is a small computer that forms part of a larger system. they tent to only have 1 or 2 tasks they can complete
name some examples of embedded systems
GPS systems, calculators, smat watches
what is a general purpose computers
a computer designed to be able to carry out a wide range of instructions
What does the controll unit do
Controls and manèges the execution of instructions
What does the MDR do
Temporally holds data that is wing transfersd to or from
What is the Data protection act 2018
An updated piece of uk legislation which is designed to protect a individual’s personal data.
What are the 6 basic principles of the data protection act 2018
- data must be processed lawfully, fairly and in a transparent manner
- data must be collected for specified, explicit and legitimate reasons
- data must be adequate, relevant and limited
-data must be accurate and, where necessary, kept up to date
-Data must be kept for no longer than is necessary
-data must be processed in a manner that ensures security of the data
What must data owners do when storing data
Only use accurate, relevant, necessary and lawful data, only keep it for as long as necessary, have a legitimate reason and prove that their security measures are up to scratch.
explain the fetch stage of the cycle
the PC continually holds the address of the next instruction
