Compact Disc (CD) is made of several layers of a type of plastic usually Polycarbonates. The outer layers are protection layers, which simply absorb scratches so that the...
The hard disk is an internal storage device which holds programs and data used by a computer. It consists of magnetic platters with read/write heads that float above...
To understanding its working, we should note how the mechanical mouse works. The mechanical mouse contains a ball which partially protrudes from the bottom surface, so that the...
A mouse is a handheld device for moving the pointer around the screen. It is a primary component of the windows GUI (Graphical User Interface) environment. The use...
The standard microcomputer keyboard consists of 104 keys arranged in the standard typewriter or QWERTY layout. A separate numeric keypad is at the right side of the keyboard...
Flash memory is a form of non-volatile computer memory that can be electrically erased and reprogrammed. Flash memory applications include digital audio players, digital cameras and mobile phones....
Synchronous dynamic random access memory (SDRAM) is DRAM that is synchronized with the system bus. DRAM has an asynchronous interface, which means that it responds as quickly as...
Dynamic Random Access Memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real...
RAM is also volatile, losing the stored information in an event of power loss, and quite expensive. ROM is not volatile, but is not suited to storage of...
