Central processing unit, Basic Computer Science

Assignment Help:

Central Processing Unit:

A Central Processing Unit (CPU) in a computer system is an extremely fast device as compared to the main memory, but it can not work on its own. It depends on the main memory that sends data and instruction when required for processing.

 In other words, we can say that even memories with smaller size (i.e. primary memory) have very high access time (time taken by CPU to access a location in memory), which reduces the overall speed of a computer. 

Computer memory can also be categorized on the  basis of Volatile  and Non-Volatile characteristics. Non-volatile Memory is a type of computer memory which can retain the stored information even if the power is shut down. Examples of Non-Volatile Memory are Read-only memory (ROM), flash memory, optical discs etc. On the other hand, a Volatile memory loses its content when the power goes off. Random Access Memory (RAM), which is the most common form of Primary Storage, is a type of volatile memory. When the computer is shut down, everything contained in RAM is lost.  


Related Discussions:- Central processing unit

First generation of computers, THE FIRST GENERATION (1949-1955) ...

THE FIRST GENERATION (1949-1955) The computers in this generation have the following characteristics:     Physically large in size     Inflexible in operations

Analog transmission, Analog Transmission: In analog transmission, ther...

Analog Transmission: In analog transmission, there is a continuous up and down pattern. For example, one wave constitutes one cycle, which is measured in the unit called Hertz

Assembly language, Assembly language : Assembly language is a low level...

Assembly language : Assembly language is a low level programming language similar to machine language, but far easier to write and understand because machine language binary in

Frequency and bandwidth, Frequency and Bandwidth: Let us try to unders...

Frequency and Bandwidth: Let us try to understand a little about how information is transmitted. The information may be in the form of sound (human voice, music) or it may be

Accessing other computers, Accessing Other Computers The advanced netw...

Accessing Other Computers The advanced networking features of Windows combined with the easy to use user interface make the task of sharing information with other computers/us

Threading Module of python, The latest threading module comprised with Pyth...

The latest threading module comprised with Python 2.4 provides much more powerful, high-level hold for threads than the old thread module. The threading module depictions all the m

Memory unit of computer, Memory unit of computer: The Memory  unit is ...

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

Flowchart, 1. The volume of a pyramid is taken from the formula: V = 1/3 x ...

1. The volume of a pyramid is taken from the formula: V = 1/3 x AREA OF BASE x ALTITUDE Given the dimensions of a pyramid, calculate the cost of materials for making that pyrami

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd