Difference between revisions of "Analog"

From Computer History Wiki
Jump to: navigation, search
m (+cat)
(Analog devices were historically referred to as 'instruments' in the UK)
 
(2 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
'''Analog''' is a term used in computer-related discussions to describe the lowest ''conceptual'' level at which computer components can be examined. (Obviously, in actuality, all computers are 'analog' at their lowest level, since they are built out of electrical circuits.)
 
'''Analog''' is a term used in computer-related discussions to describe the lowest ''conceptual'' level at which computer components can be examined. (Obviously, in actuality, all computers are 'analog' at their lowest level, since they are built out of electrical circuits.)
  
As such, things such as [[voltage]]s, [[current]]s, [[resistor]]s and [[transistor]]s are the concepts used. Note particulary that voltages are not binary, but can take any value (one of the meanings of 'analog'); this is important in topics such as [[meta-stability]].
+
As such, things such as [[voltage]]s, [[current]]s, [[resistor]]s and [[transistor]]s are the concepts used. Note particularly that voltages are not binary, but can take any value (one of the meanings of 'analog'); this is important in topics such as [[meta-stability]].
  
The term is also used to name computing devices in which infinitely variable [[voltage]], etc, levels are used as data, instead of the limited discrete values used in [[digital]] computing devices.
+
The term is also used to name [[computing device]]s in which infinitely variable levels (voltages, currents etc) are used as data, instead of the limited discrete values of the same used in [[digital]] computing devices. Such devices were historically referred to as '''instruments''' in the UK.
  
 
{{semi-stub}}
 
{{semi-stub}}
 +
 +
==See also==
 +
 +
* [[Vonada's Engineering Maxims]]
  
 
[[Category: Basics]]
 
[[Category: Basics]]

Latest revision as of 10:55, 15 September 2024

Analog is a term used in computer-related discussions to describe the lowest conceptual level at which computer components can be examined. (Obviously, in actuality, all computers are 'analog' at their lowest level, since they are built out of electrical circuits.)

As such, things such as voltages, currents, resistors and transistors are the concepts used. Note particularly that voltages are not binary, but can take any value (one of the meanings of 'analog'); this is important in topics such as meta-stability.

The term is also used to name computing devices in which infinitely variable levels (voltages, currents etc) are used as data, instead of the limited discrete values of the same used in digital computing devices. Such devices were historically referred to as instruments in the UK.

See also