We live in an analog world. There are an infinite amount of colors to paint an object (even if the difference is indiscernible to our eye), there are an infinite number of tones we can hear, and there are an infinite number of smells we can smell. The common theme among all of these analog signals is their infinite possibilities.

Digital signals and objects deal in the realm of the discrete or finite , meaning there is a limited set of values they can be. That could mean just two total possible values, 255, 4,294,967,296, or anything as long as it’s not ∞ (infinity).

Working with electronics means dealing with both analog and digital signals, inputs and outputs. Our electronics projects have to interact with the real, analog world in some way, but most of our microprocessors, computers, and logic units are purely digital components. These two types of signals are like different electronic languages; some electronics components are bi-lingual, others can only understand and speak one of the two.

Download or order the Analog Engineer's Pocket Reference by op-amp experts Art Kay and Tim Green. The guide is a handy reference featuring commonly used board and system level design formulae. The guide covers key constants and conversions; discrete components; AC and DC analog equations; op-amp basic configurations; op-amp bandwidth and stability; sensors; PCB trace R, L, C; wire L, R, C; binary, hex and decimal formats; and A/D and D/A conversions.

A detailed resource for anyone new to the battery power management industry. The book takes a comprehensive approach and covers topics that include battery chemistry fundamentals, battery safety, system considerations, and design examples.

Download or order the Analog Engineer's Pocket Reference by op-amp experts Art Kay and Tim Green. The guide is a handy reference featuring commonly used board and system level design formulae. The guide covers key constants and conversions; discrete components; AC and DC analog equations; op-amp basic configurations; op-amp bandwidth and stability; sensors; PCB trace R, L, C; wire L, R, C; binary, hex and decimal formats; and A/D and D/A conversions.

Use this learning clock to help teach your kids to tell time. Use your mouse to set the time by the minute hand. Toggle on and off the digital time. You can also print out some of our free telling time worksheets .

Browse our bookstore where we sell reading and math workbooks. The workbooks contain both instruction and exercises (with answer keys) and can be immediately downloaded and printed. Ideal for independent or parent led-studying .

K5 Learning is an online reading and math program for kids in kindergarten to grade 5. Kids work at their own level and their own pace through a personalized program of reading and math lessons; each lesson is accompanied by customized printable worksheets for further study.

We live in an analog world. There are an infinite amount of colors to paint an object (even if the difference is indiscernible to our eye), there are an infinite number of tones we can hear, and there are an infinite number of smells we can smell. The common theme among all of these analog signals is their infinite possibilities.

Digital signals and objects deal in the realm of the discrete or finite , meaning there is a limited set of values they can be. That could mean just two total possible values, 255, 4,294,967,296, or anything as long as it’s not ∞ (infinity).

Working with electronics means dealing with both analog and digital signals, inputs and outputs. Our electronics projects have to interact with the real, analog world in some way, but most of our microprocessors, computers, and logic units are purely digital components. These two types of signals are like different electronic languages; some electronics components are bi-lingual, others can only understand and speak one of the two.

Download or order the Analog Engineer's Pocket Reference by op-amp experts Art Kay and Tim Green. The guide is a handy reference featuring commonly used board and system level design formulae. The guide covers key constants and conversions; discrete components; AC and DC analog equations; op-amp basic configurations; op-amp bandwidth and stability; sensors; PCB trace R, L, C; wire L, R, C; binary, hex and decimal formats; and A/D and D/A conversions.

A detailed resource for anyone new to the battery power management industry. The book takes a comprehensive approach and covers topics that include battery chemistry fundamentals, battery safety, system considerations, and design examples.

We live in an analog world. There are an infinite amount of colors to paint an object (even if the difference is indiscernible to our eye), there are an infinite number of tones we can hear, and there are an infinite number of smells we can smell. The common theme among all of these analog signals is their infinite possibilities.

Digital signals and objects deal in the realm of the discrete or finite , meaning there is a limited set of values they can be. That could mean just two total possible values, 255, 4,294,967,296, or anything as long as it’s not ∞ (infinity).

Working with electronics means dealing with both analog and digital signals, inputs and outputs. Our electronics projects have to interact with the real, analog world in some way, but most of our microprocessors, computers, and logic units are purely digital components. These two types of signals are like different electronic languages; some electronics components are bi-lingual, others can only understand and speak one of the two.

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