revision Flashcards
(62 cards)
cisc definition
complex instruction set computer
risc definition
reduced instruction set computer
does a cisc computer have to break down instructions?
no
does cisc require more or less circuitry
more
does risc process simple or complex instructions
simple
what is primary storage also known as?
main memory
does primary storage hold data programs and current instruction?
yes.
where is primary storage located?
motherboard
is secondary storage volatile or non-volatile?
non-volatile
volatile definintion
data is lost when the computer is turned off
non-volatile definition
data is still stored when the computer is turned off
what is stored in secondary storage
programs and data
give 3 embedded systems
choose from:
central heating, gps, digital watches, domestic appliances, fitness trackers, engine management.
are embedded systems cheap or expensive?
cheap
are embedded systems programmable by the user?
no
list these in order of the fde cycle:
programme counter, memory address, MAR, the address on the programme counter is increased by 1.
memory address, programme counter, MAR, the address on the programme counter is increased by 1.
is the performance of the CPU affected by the clock speed and memory?
yes
what is the cache?
high speed memory
what are the types of bus?
address bus, data bus, control bus
what are the buses used for?
sends control signals between the processers and other things
what is clock speed measured in?
Hertz (Hz)
what does the arithmetic logic unit (alu) do?
preforms arithmetic and logic equations.
what are the registers?
memory address register, memory data register, current instruction register, programme counter, accumulator.
what do the registers do?
it holds the address of the next instruction.
