COMPUTER SYSTEM AND ITS FUNCTIONS NOTES
Computer System is a very important topic, here you will get detailed explanations of Computer System and its Functions Notes Free which will helpful for making notes, preparing for competitive Exam.
As we know these days, computers are put to use for all sorts of applications ranging from complex calculations in the field of education, entertainment, research, engineering teaching, printing books, and recreational games.
The ease with which computers can process data, store and retrieve it painlessly. The areas of applications of computers are confined only by limitations. In fact, a task any task that can be carried out system can be performed by a computer.
Therefore, it is essential for every educated person today to know about a computer, its strengths, its weakness, and its internal structure. And that what we are going to explain in this chapter.
You may also Check-in:
NCERT Class 10 Science Notes on Electricity
What is a Computer?
A computer is an electronic device that can perform a variety of operations according to a set of instructions called Programs.
A computer can be thought of as a combination of hardware and software, which transforms some data into information.
What is Hardware?
It refers to the physical parts of the computer; the ones that you can touch e.g., Keyboard, monitor, etc
What is Software?
It refers to the instructions(programs) that tell the computer what to do.
What is Data?
Unprocessed raw facts and figures are data.
What is Information?
It refers to the processed data that is meaningful e.g., data can be converted into information as "Rohan, who passed in 2007, secured 73.5% marks".
Functional Components of a Computer System
A computer, mainly, has four functions:
1.Accepts Data-Input
2.Processes Data-Processing
3.Produces Results/Output-Output
4.Stores Results-Storage
The basic structure of a computer comprises a unit to perform each of the above functions.
What is Memory?
Memory is the storage brain of the computer, which holds the data during processing.
The main memory holds the input and intermediate output during the processing.
The Input unit of a computer system is responsible for the input Phase; CPU(Central Processing Unit) is responsible for the process phase; the output unit is responsible for the output phase.
What are the applications of a computer?
Some major applications of Computer are as follows:
1.Bussiness
2.Medicine and Health care
3.Communications
4.Education and Reference
5.Science, Research & Engineering
6.Manufacturing
7.Law Enforcement by Police
8.Government
9.Military
10.Music
11.Theatre, Film and Television
12.Computer at home
What are the Characteristics of a Computer?
As you have seen that computers are being effectively used for a variety of tasks in nearly every field. Can you think of the qualities which made computers so popular?
Let us explore those reasons that are responsible for computer popularity.
computers certainly have some common strengths, which makes them immensely useful and of course popular. Let us see what these strengths are.
Strengths of Computers:
1.Speed: Computers are much faster than as compared to human beings. A computer can perform a task in a minute that may take days if performed manually.
2.High storage Capacity: Computers can store a large amount of information in a very small space.
3.Accuracy
4.Reliability
5.Versatility
Weakness of a Computers
1.Lack of Decision-Making Power
2.IQ Zero
3.No Heuristics
Stay connected hope you will enjoy it.....
0 Comments