Please help me out

Thread Starter

painbird7

Joined May 10, 2006
1
Hi

I have a project from digital fundamentals class to build a simple

calculator circuit that performs add function, subtract function and

display results(21/2 digit).

here is my question,

what does 21/2 digit really mean? is that a name of a display device?

or 21 inputs and 2 outputs?

thank you for sharing your knowledges
 

hgmjr

Joined Jan 28, 2005
9,029
Originally posted by painbird7@May 10 2006, 07:40 PM
Hi

I have a project from digital fundamentals class to build a simple

calculator circuit that performs add function, subtract function and

display results(21/2 digit).

here is my question,

what does 21/2 digit really mean? is that a name of a display device?

or 21 inputs and 2 outputs?

thank you for sharing your knowledges
[post=16987]Quoted post[/post]​
The reference to 2 and 1/2 digits typically means that the display has three digit positions with the two right most digits in the display capable of taking on the values 0 through 9 and the remaining leftmost digit is restricted to the digits 0 or 1 and in some displays the leftmost digit can display a 2. The reference to 1/2 digit refers to the fact that the leftmost digit is limited in the range of numbers it can display.

hgmjr
 

Gadget

Joined Jan 10, 2006
613
That pretty much it. Cheap digital meters are often 2 1/2 digit.... max count normally 199
 
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