When you search for a "digital electronics pdf book," you should ensure that the resource covers the foundational pillars of the subject. A quality book will generally include the following chapters:
| Gate | Symbol | Boolean Expression | Truth Table (A,B → Output) | |------|--------|--------------------|----------------------------| | AND | & | Y = A·B | 00→0, 01→0, 10→0, 11→1 | | OR | ≥1 | Y = A+B | 00→0, 01→1, 10→1, 11→1 | | NOT | ○ | Y = A' | 0→1, 1→0 | | NAND | & with ○| Y = (A·B)' | Opposite of AND | | NOR | ≥1 with ○| Y = (A+B)' | Opposite of OR | | XOR | =1 | Y = A⊕B | 00→0, 01→1, 10→1, 11→0 | | XNOR | = with ○| Y = A⊙B | 00→1, 01→0, 10→0, 11→1 | digital electronics pdf book