computing Flashcards
what are the 3 facts about data in RAM
it is the users software
all data is lost when the computer is turned off
it cam be read and written
3 facts about data in ROM
it is red only memory
it is the computers software
it is not lost when computer is turned off
what is word size
word size is the no. of bit fetched by the processor from RAM at any one time
name 3 types of storage
flash optical and magnetic
what is computer networking
computer network is 2 or more computers connected together by a cable or wireless signals
what are the 3 thingies in CPU
ALU. registers. CU
what does the CU do in the CPU
controls and supervises the low of data in CPU
what does ALU do in the CPU
ALU does all the arithmetic stuff
diagram of computer system
input devices➡️cpu➡️output devices
⬇️⬆️
backing storage devices
what is the registers
temorary storage
what does the CU do in the CPU
controls and supervises the flow of data
name 3 different types of magnetic storage
floppy disk
zip disk
hard disk drive
name 3 different types of optical storage
cd
dvd
blu ray
name 2 types of flash storage
usb
sim card
what is a operating system
the operating system is the most important sortware on your computer. it starts as soon as the computer is turned on.
