Have you ever wondered why it is said that digital world? It's because computer cannot recognize information the same way you and I can. People instructions and process data using letters, numbers, and special characters. For example, if we wanted someone to add the numbers 3 and 5 together and record the answer, we might say "please add 3 and 5". The system unit, however, is electronic circuitry and cannot directly process such a request.
Our voices create analog, or continuous, signals that very to represent different tones, pitches, and volume. Computers, however, can recognize only digital electronic signals. Before any processing can occur within the system unit, a conversion must occur from what we understand to what the system unit can electronically process.
What is the most fundamental statement you can make about electricity? It is simply this: It can be either on or off. Indeed, there are many forms of technology that can make use of this two state on/off , yes/no, present/absent arrangements. For instance, a light switch may be on or off, or an electric circuit open or closed. A specific location on a tape or disk may have a positive charge or a negative charge. This is the reason, than, that a two-state on/off, or an electric circuit open or closed. A specific location on a tape or disk may have a positive charge or an negative change. This is the reason, then, that a two-state or binary system is used to represents data and instructions.
The decimal system that we are all family with has 10 digit (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ). The binary system, however, consists of only all two digits-0 and 1, Each o or 1 is called a bit short form binary digit. In the system unit, the 1 can be represented by a positive change and the 0 by no electrical charge in order to represent numbers , letters, and special characters, bit are combined into groups of eight called bytes. One or more bytes can then used as part of a character encoding scheme to represent alphabetic characters and special symbols.
Our voices create analog, or continuous, signals that very to represent different tones, pitches, and volume. Computers, however, can recognize only digital electronic signals. Before any processing can occur within the system unit, a conversion must occur from what we understand to what the system unit can electronically process.
What is the most fundamental statement you can make about electricity? It is simply this: It can be either on or off. Indeed, there are many forms of technology that can make use of this two state on/off , yes/no, present/absent arrangements. For instance, a light switch may be on or off, or an electric circuit open or closed. A specific location on a tape or disk may have a positive charge or a negative charge. This is the reason, than, that a two-state on/off, or an electric circuit open or closed. A specific location on a tape or disk may have a positive charge or an negative change. This is the reason, then, that a two-state or binary system is used to represents data and instructions.
The decimal system that we are all family with has 10 digit (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ). The binary system, however, consists of only all two digits-0 and 1, Each o or 1 is called a bit short form binary digit. In the system unit, the 1 can be represented by a positive change and the 0 by no electrical charge in order to represent numbers , letters, and special characters, bit are combined into groups of eight called bytes. One or more bytes can then used as part of a character encoding scheme to represent alphabetic characters and special symbols.
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