Guides and tutorials on number systems, binary arithmetic, and financial calculations.
Learn how to convert octal (base 8) numbers to decimal (base 10) using the positional weight method. Includes worked examples, practice problems, and a free converter tool.
Learn 1's complement and 2's complement with simple explanations, step-by-step examples, and practice problems for BCA/BTech exams.
Complete ASCII table with decimal, hexadecimal, and binary codes for all 128 characters. Includes printable characters, control codes, and practical usage examples.
Learn the repeated division method to convert decimal numbers to binary. Step-by-step examples, practice problems, and a free online converter tool.
Learn Binary Coded Decimal (BCD) encoding with step-by-step conversion examples. Understand 8421 BCD, packed vs unpacked BCD, and applications in digital systems.
Understand the difference between simple interest and compound interest with formulas, worked examples, comparison tables, and free calculators.
Learn three types of percentage calculations with formulas and worked examples: finding percent of a number, what percent one number is of another, and percent change.
Learn how to calculate discount percentage, sale price, and original price with formulas and worked examples. Includes tips for Indian retail shopping.
Understand IEEE 754 single and double precision floating point format. Learn sign, exponent, and mantissa with step-by-step conversion examples.
A beginner-friendly guide to number systems — binary, octal, decimal, and hexadecimal — with examples and conversion basics.
Understand chmod 755, 644, and octal permission digits. Read, write, execute bits for owner, group, and others.
Overview of GST rate slabs 0%, 5%, 12%, 18%, 28% in India. CGST, SGST, IGST explained with calculation examples.
Derive the EMI formula for reducing balance loans. Monthly rate, tenure, amortization, and worked examples for Indian home loans.
How real numbers are stored in binary: mantissa, exponent, precision limits, rounding, and comparison pitfalls.
How computers represent numbers: bases used in programming, memory, and networking. Conversion methods and free tools.
Complete introduction to binary numbers: place values, conversion, signed representation, and why computers use base 2.
Learn to calculate percentages: X% of Y, what percent, percent increase/decrease. Indian exam examples and free calculator.
Learn A = P(1 + r/n)^(nt) with examples for annual, quarterly, and monthly compounding. Free compound interest calculator.
Master the simple interest formula with worked examples in Indian rupees, common exam questions, and a free SI calculator.
Understand IEEE 754 single and double precision: sign, exponent, mantissa fields, special values, and a free converter tool.
Complete guide to ASCII character codes: decimal, hex, binary values, control characters, extended ASCII, and Unicode relationship.
Understand 8421 BCD encoding, packed vs unpacked formats, applications in calculators and displays, and free BCD conversion tools.
Learn octal (base 8) conversion to decimal and binary. Includes chmod examples, worked problems, and free online tools.
Convert hex numbers to decimal using positional notation. Worked examples from single digits to multi-byte values like FF and DEAD.
Learn how GST is calculated in India, the difference between adding and removing GST, and how CGST and SGST split works.
Learn to convert binary to hex by grouping bits into nibbles. Includes examples, reference table, and links to free conversion tools.
Learn the division-by-2 method to convert any decimal number to binary with clear examples, practice tips, and a free online converter.
A complete guide to how EMI is calculated, what factors affect your monthly payment, and how to use an EMI calculator effectively.
Learn the division-by-2 method and positional notation to convert binary numbers to decimal with clear examples for students.
Convert between binary, octal, decimal, and hexadecimal with step-by-step working.
Convert text to ASCII codes, binary, hex, and octal.
Add, subtract, and multiply binary numbers with column-by-column steps.
Calculate monthly EMI with full amortization schedule for Indian loans.
Add or remove GST with CGST/SGST breakdown for India.
Calculate exact age in years, months, and days from date of birth.
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