What are the bit boundaries for signed and unsigned registers?

For 8-bit registers, the unsigned range is 0 to 255 and signed Two's Complement is -128 to 127. For 16-bit, unsigned is 0 to 65,535 and signed is -32,768 to 32,767. For 32-bit, unsigned is 0 to 4.29 billion and signed is -2.14 billion to 2.14 billion.

How is the ASCII table structured?

The ASCII table contains 128 indices (0 to 127). The first 32 characters (0-31) and character 127 are non-printable control characters (like tab, carriage return, escape), while characters 32 to 126 are printable symbols, letters, and numbers.

What is the importance of powers of 2 in computing?

Computers operate on base-2 (binary) physical states. Powers of 2 determine register capacities, memory allocation boundaries (e.g., 2¹⁰ = 1,024 bytes or 1 KB), and maximum addressing ranges.

Why use a binary conversion cheat sheet for computer science exams?

A binary conversion cheat sheet consolidates critical powers-of-two formulas, ASCII control character hex codes, and 8-bit/16-bit register boundary limits into an easy-to-review reference for university exams and technical interviews.

CS Study Hub Updated August 2026

Binary Cheat Sheet & Computer Science Conversion Tables

Quick reference tables for register limits, powers of 2, and searchable ASCII character codes.

Binary Code Cheat Sheet: Searchable ASCII Table

Search by character, decimal value, hex code, or binary code.

Dec	Hex	Binary	Char	Description

Powers of 2

Exponent	Value
2⁰	1
2¹	2
2²	4
2³	8
2⁴	16
2⁵	32
2⁸	256
2¹⁰ (1 KB)	1,024
2¹⁶	65,536
2³²	4,294,967,296

Register Bound Ranges

Size	Unsigned	Signed (Two's Comp)
8-Bit	0 to 255	-128 to 127
16-Bit	0 to 65535	-32,768 to 32,767
32-Bit	0 to 4.29B	-2.14B to 2.14B

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