Flashcards

revison 1

katie... English 10 cards

Cards in this deck (10)

1what is an embedded system?an embedded system includes a computer but it is not itself a general purpose computer.
2what is solid state?solid state has no moving parts and it records data. it is also small and light.
3what is a purpose a CPU?to fetch, decode and execute instructions from the main memory.
4what is a computer system?a computer system is made up of hardware and software it can take a set of instructions process then and produce outputs.
5what is virtual memory?virtual memory is a small part of the hard disk drive which avoids the computer crashing when the memory runs out. it is much slower than real memory (RAM)
6what does RAM stand for and when is it used?RAM stands for Random access memory and it used when the computer boots up and the memory is only temporary when the power goes off the contents of the RAM are lost
7what are the different memory sizes in size order?Bit
nibble
byte
kilobyte
megabyte
gigabyte
terabyte
8what is cache memory?cache is a type of memory that is relatively small but can be accessed quickly
9what is flash memoryit retains information even without power it is a type of non-volatile memory good for devices like cameras, solid state drives e.g
10draw a truth table for this type of logic gate and say what logic gate it is.