read only memori

یک تراشه ازکامپیوترکه اطلاعاترادرخود به مدت طولانی ذخیره میکند

chips of memory contaınıng information wich is present and permanent

virus

a pice of soft ware wich a ttaches ıt self so and application or file: once you run and infected.

the virus quiklly spread to the system files and other soft ware

ip address

a number wich identifies acomputer on the internet;every machin on the internet has an unique ip address e.g;194.297.132.3

haker

a skilled progeramer who attempts to gain unauthonzed to gain accses to net work

hak

to gain on unauthurized