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Difference Between RAM and ROM Points : difference between ram and rom, ram vs rom Difference Between RAM and ROM RAM ROM 1. RAM is larger and busier of the two. When program and data are joined into the computer they are put in RAM. ROM holds the built-in operating system, basic input output system (BIOS) and utility programs responsible for carrying out computers basic functions. 2. As the name implies, the memory location in RAM can be accessed randomly. These are normally accessed automatically when the computer is turned on. 3. When the contents of RAM are no longer in need, they can be created and replaced instantaneously with other program and data. The contents of ROM can not be changed. As the name implies, it can only be read and not written too. 4. In general RAM is volatile that is information is lost when the power supply is switched off. RAM may be static and dynamic. In general ROM is non-volatile, that is information is not lost when the power supply is switched off.

Memory Unit and its two major types Points : define memory unit and its two major types, read only memory (rom), random access memory (ram) Memory Unit Memory unit is the place where the computer program and data re stored during processing. It is the area, through which all the data which is input into or output of the CPU mist pass. ft is monitored by OU which keeps track of every thing in the storage. It is a random access device, which consists of thousands upon thousands of storage locations, each of which can be directly reached by the CU. Each storage location is distinguished by the address. It is divided into two parts. Read Only Memory (ROM) Random Access Memory (RAM) Read Only Memory (ROM) This part of memory contains permanently stored information. When the power is switched off. ROM does not wash away. This information is available to a computer to read and process but not to be changed is kept on ROM. This information is stored on small pieces of memory chips, befo

CPU and its different units Points : cpu and its different units, central processing unit (cpu), ? arithmetic and logic unit (alu), centro unit (cu), memory unit (mu), Central Processing Unit (CPU) Central Processing Unit (CPU) is the brain of computer system. We use CPU to control all input and output connections inside arid outside of computer to produce correct answers for the user. it controls and supervises all the units in a computer. It takes information from the input unit and from the memory and uses it according to the instructions already given to the computer. From functional point of view CPU consists of three parts. Arithmetic arid Logic Unit (ALU) Control Unit (CU) * Memory Unit (MU) Arithmetic And Logic Unit (ALU) The ALU in any microprocessor, which provides calculations including addition, subtraction, multiplication and division. It can also perform logical operations like comparing two numbers to see which number is greater than, less than or equal to another nu