a computer disc that can store large amounts of information and that produces very high quality pictures and sounds, used especially for computer games and films/
erasable-programmable read-only memory: computer memory that can be changed by a user to correct a problem in the program or to add to what the program can do
a small plastic disk drive that stores information and that you can carry around with you. You connect the flash drive to a computer when you want to use the information.
a type of computer memory that does not lose information when electrical power stops being available and from which you can erase (=get rid of) information and then program it again
a thin flat round piece of plastic that stores information such as music or written words that can be read using a laser (=powerful narrow light). Optical disks include CD-ROMs and laserdiscs. (用以储存音乐或文档等信息并可用激光器读出的)光盘
read-only memory: computer memory that is permanent and cannot be changed. Computer memory where you can save and change information is calledRAM. 只读存储器
one small area in a computer where information is stored, or a list of the files and programsstored there. A subdirectory is in a directory, often with other subdirectories子目录
Keep the files in a separate subdirectory. 把这些文件保存在一个单独的子目录中。