if A , B mutually exclusive then P(A|B) =

if A , B independent events then P(A|B) =

Asynchronous sequential system ==> State updated at discrete times

The variables in the analog computer are represented by discrete signals, usually electric voltages that vary with time.

The term analog signal is sometimes substituted for continuous signal because analog computer means a computer that manipulates digital variables.

When continuous real-time signals present the variables of the process, the latter is quantized by an digital-to-analog conversion device.

The ........................ has the advantage of being easier to implement by digital components since the only thing that must be done is to change 0's into 1's and 1's into 0's.

During subtraction of two numbers by complements, the 1's complement is advantageous is that only one arithemtic addition operatoin is required.

The 1's complement has the additional disadvatage of possessing two arithmetic zeros: one with all 0's and one with all 1's.

Digital systems takes continuous information as inputs and descrete internal information

Each octal digit corresponds to 4 binary digits while each hexadecimal corresponds to 3 binary digits

In (r-1)’s complement if an end-around carry occurs , we discard it

The 2’s complement has the advantage on 1’s Complement of being easier to implement by digital components.

During Substraction , 2’s complement requires only one arithmetic addition operation

A binary cell is a device that possesses 3 stable states and we can store 3 bits of information

Register is a group of binary cells

……….obtained from the interchange of AND and OR operators and 1’s and 0’s

…………….obtained by interchanging AND and OR operators and complemented each literals

ASCII code represents “ A ” by ……..bits