Abstract: An input receiving apparatus receives an input such as an order slip transmitted from a facsimile apparatus at a user terminal. The user makes a conversation reservation before the user transmits the image data of the order slip. After the input receiving apparatus receives the image data, the input receiving apparatus switches a connection line from a facsimile receiving apparatus to a facsimile transmitting apparatus within the input receiving apparatus within the same call upon receipt of the conversation reservation signal automatically transmits a switching signal to the facsimile apparatus at the user end and performs a character recognition by extracting a character portion from the image data, thereby preparing a return image data based on the character recognition. When the facsimile apparatus at the user end is ready for receiving the return image data, the input receiving apparatus transmits the return image data.

Abstract: In a data processing system having a plurality of virtual address spaces, a virtual address is translated into a real address for accessing a main memory and the translation result is stored in a translation lookaside buffer, as in a processing system having a single virtual address space. Thereafter, in the case of the same virtual address as the above, the translation lookaside buffer is retrieved to translate the virtual address into a real address. Generally, even in the case of the same virtual addresses, if their virtual address spaces are different, the virtual addresses are translated into different real addresses. However, a control program, a control table or a common subroutine is provided in a common area in which the coordination of virtual and real addresses is always constant even in the case of different virtual address spaces.