Memory unit of computer, Basic Computer Science

Memory unit of computer:

The Memory  unit is an important component of a computer where all the data and information are stored in the form  of binary digits (combination of 0?s and 1?s) and retrieved whenever necessary. Computer systems use a variety of devices for storing instructions and data. The computer memory is the place where the computer holds data and programs that are in use. Computer memory refers to the physical devices in a computer. If our computer?s CPU had to constantly access the hard drive to retrieve every piece of data it requires, the operation will be very slow. On the other hand, when the data or information is kept in memory the CPU can access it much more quickly. From the time the computer is turned on until the time it is shut down, the CPU is constantly using the memory system. The act of entering data into a storage location is called a memory write operation, and the act of retrieving data from a storage location is called a memory read operation. Data and instructions are moved, to and from memory, in bunches of word length. These memory devices are categorised according to access time, storage capacity and cost-per-bit of storage.  

Posted Date: 10/22/2012 3:59:35 AM | Location : United States







Related Discussions:- Memory unit of computer, Assignment Help, Ask Question on Memory unit of computer, Get Answer, Expert's Help, Memory unit of computer Discussions

Write discussion on Memory unit of computer
Your posts are moderated
Related Questions
The Central Processing Unit : Central Processing Unit (CPU) is the brain of the computer. The intricate electronic circuitry of the CPU performs the computer's tasks of handling d


Question 1 Describe the following- Binary Number System b. Octal Number System Hexadecimal Number System   Question 2 Describe the Canonical Logical Forms-


ATM Theory - Unspecified Bit Rate Is intended for non-real time applications, that is, those not requiring tightly constrained delay and delay variation. Examples of applications




The unconditional jumps in a written program in assembler language are specified by the jmp instruction; a jump is to moves the flow of the execution of a program by sending the co

4. Provide a list of productid’s, the name of the vendor and their credit rating. The results should be ordered by last name and then by credit rating. Write out the SQL that wo