Analog Computers & Digital Computers

ANALOG COMPUTERS

Definition: 
An analog computer is the one that measured or processes data in a continuous form. A traditional watch or clack is an analog device an which time is represented in a continuous fashion.

Representation and Measurement:
Analog computers represent data continuously. It represent physical quantities like speed, weight, temperature etc.

Types of Signals:
Types of signal is continuously varying electromagnetic waves.

Mean of Transmission:
Means of transmission of analog signals without regard to their content.

No Use of Memory and Computer Devices:
Analog Computer has no memory and computing devices.

Speed:
Analog computers are very fast in processing and are used for real-time simulation.

Uses:
They are used for calculation and observation of physical quantities or their measurement such as temperature and speed.

Examples:
Examples of Analog computers are thermometer, barometer, speedometer of cars, rollmeters, ammeter.

DIGITAL COMPUTERS

Representation:
Digital Computers represent physical quantities with the help of digits or numbers. These numbers are used to perform arithmetic calculations and also make logical decisions to reach conclusion depending on the data they receive from the uses.
It represents data discretely as Os and 1s.

Convession:
It converts data into digits and then perform all types of operation on these digits.

Types of Signal:
Types of signal is sequence of voltage pulses overtime.

Means of Transmission:
Means of transmission is concerned with content of signals.

Memory:
It has memory and solves problems by counting precisely.

Classification:
Digital Computers can be classified into three groups:

1. Mainframe Computer.
2. Mini Computer.
3. Micro Computer.

Examples:
Examples of digital computers are IBM, PC and all other personal computer belongs to digital computers. 

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