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 Computer memory is of two basic types – Primary memory(RAM and ROM) and Secondary memory (hard drive, CD, etc). Random Access Memory (RAM) is primary-volatile memory and Read-Only Memory (ROM) is primary-non-volatile memory Types of Primary Memory By Haider Technical Home » Software Development » Software Development Tutorials » Computer Tutorial » Types of Primary Memory Types of Primary Memory Introduction to Primary Memory The primary memory of a computer can be categorized into three major types. viz., a. Main memory that holds instructions and data of the current program, b. Cache memory that enhances the performance of CPU by holding a copy of instructions/data stored in the main memory to save unwanted retrieval, c. Register memory that holds information required by arithmetic and logical unit of CPU to execute the instructions. While Cache memory and Register memory are embedded as part of the CPU, the main memory is an independent unit in a computer connected to CPU by a ...

  A mouse is a small hardware input device used by hand. It controls the movement of the cursor on the computer screen and allows users to move and select folders, text, files, and icons on a computer. It is an object, which needs to put on a hard-flat surface to use. When the users move the mouse, the cursor moves in the same direction on the display screen. The name mouse is derived from its size as it is a small, corded, and elliptical shape device that looks a bit like a mouse. A connecting wire of a mouse is imaginable to be the mouse's tail. Additionally, some of the mice have combined features like extra buttons, which may be assigned and programmed with many commands. The mouse invention is considered as one of the most important breakthroughs in the computer field as it helps to reduce the use of a keyboard Different buttons on a computer mouse This resource will explain the functions of different buttons on Windows and Apple computer mice. Windows mouse The Left Button Th...