Category Archives: Digital Electronics

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Numbering System and Digital Logic [Simplified]

There are different numbering systems used in digital electronic circuits and computers. However, the numbering system used in one type of circuit may be different to that of another type of circuit, for example, the memory of a computer would use hexadecimal numbers while the keyboard uses decimal numbers. The different number systems are Decimal… Read More: Numbering System and Digital Logic [Simplified] »

Binary Numbers Arithmetic Operators – Two’s Complement [Explained]

Because of its widespread use, we will concentrate on addition and subtraction for Two’s Complement representation. The nice feature with Two’s Complement is that addition and subtraction of Two’s complement numbers works without having to separate the sign bits (the sign of the operands and results is effectively built-into the addition/subtraction calculation). Remember: −2n−1 ≤ Two’s… Read More: Binary Numbers Arithmetic Operators – Two’s Complement [Explained] »

Electrical Engineering Interview Questions and Answers

Section 1: Electrical interview questions and answers about switchgear and protection What are the functions of protective relays? To detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. Give the consequences of… Read More: Electrical Engineering Interview Questions and Answers »

Why Computers Use Binary Code Numbers? [Answered]

Everyone of us about the decimal numbers i.e. 1, 2, 3, 4, 5, etc. However, there are many other numeral systems that exist, like hexadecimal numbers for example:3F2Bor binary numbers for example:10101011.Some may think these numbers cryptic and meaningless. These hexadecimal or binary code numbers can easily be converted to the well-known decimal numbers. Then… Read More: Why Computers Use Binary Code Numbers? [Answered] »

How to Convert Decimal Number to Binary Numbers

Conversion from decimal number to binary number system is also essential to represent real-world quantities in terms of Binary values. The Sum-of-weights and repeated division by 2 methods are used to convert a decimal to Binary number. Sum of Weights Method  The  Sum-of-weights  method  used  to  convert  Binary  numbers  into  their  Decimal equivalent is based… Read More: How to Convert Decimal Number to Binary Numbers »

COMPUTER CODING SYSTEM

Many different coding systems are used to represent data today. What is the importance of coding systems? To represent numeric, alphabetic, and special characters in a computer’s internal storage and on magnetic media, we must use some sort of coding system. In computers, the code is made up of fixed size groups of binary positions.… Read More: COMPUTER CODING SYSTEM »