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 primary step is to start the Debug; this step only consists of typing debug [Enter] on the operative system on time. the "a" (assemble) command is used To assemble a program on

what are the factors and criteria for computer (from business point of view)?

Conditional constructs are used to integrate decision making into programs. The outcome of this decision making determines the series in which a program will execute instructions.

define complement?

What is virtual memory? How address mapping is done in cache memory? Elaborate your answer with examples.

#after writing the script of rebuilting indexed on db server it gave output command executed succesfully does this mean i m done


Question 1: a) A distinction is often made between computer architecture and computer organisation. Describe, using examples, the meaning of computer architecture. b) Name

Brief Define the Phases of Waterfall Model

You can also allocate a single value to several variables at the same time. For instance: X=y=z =1 Now, an integer object is generated with the value 1, and all three variables are