What is a Computer System:: It is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘computare’, which means to calculate or it can be also called a programmable machine.
They cannot do anything without a program and the program is represented by decimal numbers through a string of binary digits.
The Word ‘Computer‘ usually refers to the Center Processor Unit plus Internal memory.
In simple words, it can be defined as an electronic device that can store, retrieve, and process data.
It can also perform various Arithmetic and logical operation when given proper instructions.
Modern-day PC can store huge amounts of data and can be retrieved for anytime user’s needs.
The data stored in them are beyond human abilities. It is called an electronic machine but I really think it’s more than just a device.
For all general purposes and computer functions it requires hardware. Hardware is nothing but the physical parts which is used in a PC.
Some of the common parts used are mentioned below.
It is called the heart of a computer commonly known as CPU which stands for (central processing unit).
It is used to temporarily store data with immediate effect, Ram (Random Access Memory) has gone cheaper these days compared to previous years.
Motherboard (Mainboard) is a piece of PCB (printed circuit board) to which all the other components and devices are attached to it.
The motherboard is an integral part of a PC system, without it, you cannot imagine connecting your hard drives, pen drives, and power supply.
SMPS (Switching Mode Power Supply) gives the necessary power to the motherboard and later the power is distributed to all the parts of the computer.
Keyboards and mouse are well-known examples of input devices. Through this users can easily enter data in the form of instructions or programs.
Output Device Printers are the widely used printing of any data which is entered using input devices such as a keyboard and mouse.
They are used to display information given to them.
Father of Computer | Charles Babbage
Charles Benjamin Babbage is known as “The Father of Computer”. Charles Babbage Invented the first mechanical computer then later led to more complex designs.
The Invention of the mechanical computer is one of the great inventions of all time.
Charles Babbage (The Great) was born on 26 December 1791 in London, England, and Died on 18 October 1871 in Marylebone, London, England At that time he was 79 years old.
He studied at Trinity College, Cambridge.
He was in the fields of Mathematics, engineering, politics, economy, computer science, and philosophy. But he is well known for his contribution to mathematics and computing.
He is unarguably a “Genius” of his time. Charles Babbage is well-known for his detailed plans for mechanical Calculating Engines, Difference Engines, and Analytical Engines.
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Different Types Of Computer Systems
They can be classified by size, speed, and power. There are mainly four types of computer
It is the fastest of all. It can perform billions of instructions per second. They are mainly used in research and development, weather forecasting, also used in space research.
Minicomputers can handle hundreds of computers simultaneously.
A Powerful multiuser computer can handle thousands of users simultaneously.
4. Personal Computer.
A small computer that uses a processor. It is a single-user PC.
Classifications Of Computer System
They are classified according to their size and powers. They are mainly classified into three different types
1. Analog Computer.
They are used for measuring Physical quantities such as Temperature, Voltage, Pressure, and Electric Current.
2. Digital Computer.
These are High-speed programmable devices that are used in Huge and tedious calculations.
3. Hybrid Computer.
These types of computer use both features of Analog and digital computers. such as measuring physical quantities and Calculations.
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The Five Generations of Computer System
The time and the phase when technology has gone to a different level or the period when computer technology has been more advanced than the previous days can be called Computer Generations.
They were used before only for some specific task but nowadays it has reached each and every part of human life.
Thus technology is ever-changing for the betterment of the human race.
The Generation can also be described as the comparison of a computer the different eras based on size, power, cost, efficiency, reliability, Computer hardware and software.
- First Generation::(1940-1956) They used vacuum tubes in their circuit and magnetic drums for their memory.
- Second Generation:: (1956-1963) They used transistors for their functionality in place of Vacuum tubes.
- Third Generation:: (1964-1971) The Third Generation’s computers used Integrated Circuit (IC). The integrated circuit was developed by jack Kilby in 1958.
- Fourth Generation:: (1971-Present Day) Fourth Generation used microprocessors.
- Fifth Generation:: (Future) Modern Scientists are working on AI (Artificial Intelligence). These computers will be so smart that they will have the capacity for reasoning and making decisions on their own in special conditions as human beings.
|1||First Generation of Computer||1940-1956||Vacuum Tubes|
|2||Second Generation of Computer||1956-1963||Transistor|
|3||Third Generation of Computer||1964-1971||Integrated Circuit (I.C.)|
|4||Fourth Generation of Computer||1971-1980||Microprocessor|
|5||Fifth Generation of Computer||1980- Till Now||Artificial Intelligence|
|First Generation Computer||1946-1959||J.P.Eckert and J.W. Mauchly||Vacuum Tubes and Magnetic Drum.|
|Second Generation Computer||1908-1991||Walter H. Brattain, John Bardeen, and William B||Transistor|
|Third Generation Computer||1958||Jack Kilby||Integrated Circuit (I.C.)|
|Fourth Generation Computer||1971||Federico Faggin||Microprocessor [CPU]|
|Fifth Generation Computer||1955||John McCarthy||Artificial Intelligence.|
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Advantages And Disadvantages Of Computer Systems
As all of us here know that technology has reached a different level, every day we come across new Up-gradations discoveries, and inventions in modern-day technology.
Society has been served amazingly by computers and its feature. As there are 2 sides to coins
so there are advantages and disadvantages of computers, here below I am going to mention some of them, people have the right to disagree with me but here I am going to share my personal opinion on the topic.
Top 7 Advantages Of Computer Systems
- Speed And Accuracy
- Stores a Large Amount of Data
- Easily connect with people around the world
- Online Shopping
- Significantly reduces time and effort
- Online learning
- Internet Banking
Top 7 Disadvantages Of Computer System
- Health-Related Issues When prolonged used
- Spread of Pornography
- Hate,violence-related articles, and videos
- Virus and hacking issues
- They cannot learn by themselves
- Don’t have IQ
- Cyber Crimes
10 Characteristics of Computer System
The 10 Basic Characteristics of Computer are as following
- Low Cost & Reduced Size
- No Feeling & No IQ
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