Types of Computers
Computers are divided into different types based on their size, power, speed, and operations.
1. Computers Based on the Type of Operation
Analog Computers
Analog computers work on continuously changing physical quantities such as temperature and speed. These computers are slower and less accurate, making them less reliable.
Examples: Thermometer, Speedometer.
Digital Computers
Digital computers perform calculations and logic operations using binary digits (0 and 1). These are widely used in modern technology for precise tasks.
Examples: Calculators, Digital Watches.
Hybrid Computers
Hybrid computers combine the features of both analog and digital computers. They can process both continuous and discrete data efficiently.
2. Computers Based on Capacity, Speed, and Size
Types of Digital Computers
- Micro Computers
- Mini Computers
- Mainframe Computers
- Super Computers
a. Micro Computers
Microcomputers are small in size, designed for single users, and are suitable for basic tasks. They are affordable and easy to use.
Types of Micro Computers
1. Personal Computers (PCs)
Personal computers are commonly used in homes and are single-user systems. They are affordable and perfect for everyday tasks.
Example: Apple II.
2. Workstations
Workstations are more powerful than PCs, with better memory and faster processors. They are commonly used in businesses for complex computations.
Operating Systems: UNIX, Windows NT.
3. Handheld Computers
Handheld computers, such as smartphones and palmtops, are portable and convenient to use. However, their small size limits the screen and keyboard functionality.
4. Portable Computers
Portable computers, such as laptops, are easy to move and relocate. They combine the functionality of a PC with portability.
b. Mini Computers
Minicomputers are multi-user systems that allow several users to work simultaneously. They are smaller than mainframes but larger than microcomputers.
Example: PDP-11.
c. Mainframe Computers
Mainframes are multi-user and multi-processor systems that handle large amounts of data at high speeds. They are commonly used in big organizations.
d. Super Computers
Supercomputers are the fastest and most powerful computers. They can perform billions of calculations per second, making them ideal for tasks like scientific research, weather forecasting, and seismic analysis.
Examples: Cray-1, Cray-2.
1.6 Computer & Its Latest Gadgets
Gadgets are small devices or tools designed to perform specific tasks in the digital world. They play a significant role in various fields like business, education, communication, healthcare, and entertainment.
Popular gadgets include:
- Television sets
- Smartphones
- Tablets
- Personal computers
These devices rely on software and are designed to make life easier and more efficient.
