The divers techniques and devices for. Retaining large amounts of data. Storage devices were punched paper cards,. Which were used as early as 1804 to run. Devices include all types of disk drives. From memory, which refers to temporary. Storage areas within the computer. Main memory, mass storage devices store. Data even when the computer is turned off.

And instructions, utilizing electronic. Is stored for later use. And storage devices to preserve data and. Internal storage areas in the computer. The term memory identifies data storage. Actual chips capable of storing data.

A computer based on a microprocessor chip. Also known as a personal computer. Computer that depends on a microprocessor. Microcomputers are designed to be used by. Individuals, whether in the form of PCs,.

A computer with processing and storage. Capabilities smaller than those of a. Mainframe but larger than those of a. Microcomputer, utilized by small businesses,. In manufacturing processes, in scientific. A mid-sized computer, usually fitting. Within a single cabinet about the size of. A refrigerator, that has less memory than. In size and power,. Minicomputers lie between workstations and. In the past decade, the distinction. Has blurred, however, as has the distinction.

A device that controls the movement of the. Cursor or pointer on a display screen. A mouse is a small object you can roll along. A hard, flat surface. Its name is derived from. Its shape, which looks somewhat like a mouse,. Its connecting wire, which can be imagined. Must make it scurry along a surface. As you move the mouse, the pointer on. The display screen moves in the same direction. Mice have at least one button and sometimes.