General management is managing sales and production or supply activities simultaneously. It is also being termed as output and throughput functions. A general manager can be assisted by functional managers in marketing/sales and in other operations functions like product design, production, purchasing , maintenance, accounting, finance etc.
General management can also be explained as profit center management. All MBA programs provide inputs in the area of general management. But functional specializations get more attention as many would start their career in functional managerial roles before taking up profit center responsibility.