Computer Beers
DOS Beer
Requires you to use your own can opener, and requires you to read the directions carefully before opening the can. Originally only came in an 8 oz. can, but now comes in a 16 oz. can. However, the can is divided into eight compartments of 2 oz. each, which have to be accessed separately. Soon to be discontinued, although a lot of people are going to keep drinking it after it's no longer available.

Mac Beer
At first, came only in a 16 oz. can, but now comes in a 32 oz. can. Considered by many to be a 'light' beer. All the cans look identical. When you take one from the 'fridge, it opens itself. The ingredients list is not on the can. If you call to ask about the ingredients, you are told that "you don't need to know." A notice on the side reminds you to drag your empties to the trash can.

Windows 3.1 Beer
The world's most popular. Comes in a 16 oz. can that looks a lot like Mac Beer's. Requires that you already own a DOS Beer. Claims that it allows you to drink several DOS Beers simultaneously, but in reality, you can only drink a few of them, very slowly; especially slowly if you are drinking the Windows Beer at the same time. Sometimes, for no apparent reason, a can of Windows Beer will explode when you open it.

OS/2 Beer
Comes in a 32 oz. can. Does allow you to drink several DOS Beers simultaneously. Allows you to drink Windows 3.1 Beer simultaneously, too, but somewhat slower. Advertizes that its cans won't explode when you open them, even if you shake them up. You never really see anyone drinking OS/2 Beer, but the manufacturer (International Beer Manufacturing) claims that 9 million six-packs have been sold.

Windows 95 Beer
A lot of people have taste-tested it and claim it's wonderful. The can looks a lot like Mac Beer's can, but tastes more like Windows 3.1 Beer. It comes in 32 oz. cans, but when you look inside, the cans only have 16 oz. of beer in them. Most people will probably keep drinking Windows 3.1 Beer until their friends try Windows 95 Beer and say they like it. The ingredients list, when you look at the small print, has some of the same ingredients that come in DOS Beer, even though the manufacturer claims that this is an entirely new brew.

Windows NT Beer
Comes in 32 oz. cans, but you can only buy it by the truck-load. This causes most people to have to go out and buy bigger refrigerators. The can looks just like Windows 3.1 Beer's, but the company promises to change the can to look just like Windows 95 Beer's. Touted as an "industrial strength" beer, and suggested only for use in bars.

TRS-80 Beer
TRS-80 beer was a proprietary recipe for a fairly bland beer available only in 8oz. cans. Offering only the very rudimentary components of a basic beer, it required that the user be very familiar with beers, cans and drinking in general, before it could be consumed. Much like DOS beer, which followed much later, TRS-80 beer cans required that you use your own opener. Once they were open you were forced to drink the beer one teaspoon at a time. TRS-80 beer was never really stable, and cans were known to explode at any time, even after being opened.