Class consciousness is a category of Marxist theory, referring to the self-awareness of a social class, its capacity to act in its own rational interests, or measuring the extent to which an individual is conscious of the historical tasks their class (or class allegiance) sets for them. The precise definition is contested.
One of the curious results of certain class societies (or societies that are generally perceived to be based on class distinctions) is that people belonging to different social classes have different views on the class system as a whole, thus different forms of class consciousness. Typically, in English society, the results would be:
Upper Class people, e.g. aristocrats, traditionally refer merely to The Lower Classes, without making any distinction between people who are not aristocrats, i.e. they operate in a two-class model
Working Class people, similarly, traditionally refer merely to 'toffs', i.e. anyone who isn't working class, and also operate in a two-class system, but a different one from Upper Class people
Middle Class people, in contrast, see themselves as separate from the Upper Class and Working Class, perhaps on the same bases as people who claim to belong to each, but in addition, draw distinctions between the Upper Middle and Lower Middle classes (or even introduce the notion of Middle Middle Class, for anyone they feel doesn't fall into any of the other categories), i.e. they operate from a 4- or 5-class perspective.
From this observation one can argue that class consciousness in modern English society is quite blurred, a situation which exists in other modern societies as well.
Classconsciousness is a category of Marxist theory, referring to the self-awareness of a social class, its capacity to act in its own rational interests, or measuring the extent to which an individual is conscious of the historical tasks their class (or class allegiance) sets for them.
The possibility of classconsciousness is given by the objective process of history, which transforms the proletariat into a commodity, hence objectifying it.
Classconsciousness is thus not a simple subjective act: "as consciousness here is not the consciousness of an object opposed to itself, but the object's consciousness, the act of being conscious of oneself disrupts the objectivity form of its object" (in "Reification and the Proletariat's Consciousness" §3, III "The proletariat's point of view").