会计 instead of 收银机，现金出纳机, cash register? Bentley Little, The Summoning has 会计 for original's "cash register":


  苏·温不声不响地站在餐馆会计的后面，越过会计的头顶，她看了看餐馆里仅有的两位客人，他又从会计的头顶上方斜了他们一眼，苏从会计那儿绕出来，走到他们的桌子前，回到会计那里后，苏又继续折叠那些菜单


On the other hand 会计 is universally translated as "accountant" see e.g. Baidu.
In this context, 会计 refers to the person who is doing the accounting job, that is, accountant. 

Most of time, 会计 just refers to accountant, as in: 她是个会计. 

会计 can also refer to the job for accounting, as in 会计学，会计师，会计协会，etc.