Bab 5 dan 6

Digital design often starts by constructing a........ table. By Oring the.....products, you get a sum-of-products equation.

• gate, fundamental

• Truth, bus

• Truth, fundamental

• Bus fundamental

A preliminary guide for comparing the simplicity of logic circuits is to count the number of input .......leads.

• Gate

• Bus

• Karnaugh Map

• Wires

A bus is a group of ........carrying digital signals. In the typical microcomputer, the mi- croprocessor, memory, and I/O units communicate via buses

• gate

• wires

• fundamental

• Karnaugh

One way to simplify the sum-of-products

equation is to use boolean algebra. Another way is the.... map

• Gate

• Boolean Algebra

• Bus

• Karnaugh

A pair eliminates one variable, a....... eliminates two variables, and an octet eliminates ......variables. Because of this you should encircle the ......first, the quads next, and the pairs last.

• three

• pair

• quad

• octets

NAND-NAND Circuits are equivalent to AND-OR circuits. This is important because...... gates are the least expensive gates in the 7400 series.

• AND

• 0R

• NAND

• NAND-OR

The ALU carries out arithmetic and......operations (OR, AND, NOT, etc.). It processes..... numbers rather than decimal numbers.

• logic,logic

• binary, logic

• logic, binary

• binary,binary

A half-adder adds .... bits. A full adder adds .... bits. A bits, producing a SUM

and a.....

• two, three, CARRY

• three, two, CARRY

• CARRY, two, three

• two, three, four

A binary adder is a logic cicuit that can add ...... binary numbers at a time.

The 7483 is a TTL binary adder. It can add two 4-bit binary numbers.

• one

• two

• Three

• Four

With signed binary numbers, also known as sign-magnitude numbers, the leading bit stands for the..... and the remaining bits for the.....

• sign, binary

• magnitude, binary

• magnitude, sign

• Sign, magnitude