using a modem and a telephone line data can be transferred from one computer to another. using the method of communication, computers can send documents, probably prepared on a word processor, to each other. these documents are then available to the user of the computer. this is electronic mail.
companies can prepare their mail on a word processor during the day. each letter to be mailed is stored along with the telephone number of the receiving computer to which the document must be sent. at night, the computer automatically dials up the receiving computers and transfers their mail onto them. for example, this method of communication is used by some household appliance service departments to send details of the next day’s work to service engineers who work in widely dispersed areas. each service engineer has a microcomputer which must be ready to receive data at a predetermined time during the night. at this time, documents prepared at the central computer location during the day are transferred.
Electronic mail is also possible by transferring the document to an intermediate computer. this avoid the need for sending and receiving computers to be in direct contact. mail can be sent to an intermediate computer which is always available. at a later date the mails can accessed by the receiving computer, whenever it is convenient to do so. this is the basis of most public electronic mail systems.
----gcse computer studies | longman revise guides.
companies can prepare their mail on a word processor during the day. each letter to be mailed is stored along with the telephone number of the receiving computer to which the document must be sent. at night, the computer automatically dials up the receiving computers and transfers their mail onto them. for example, this method of communication is used by some household appliance service departments to send details of the next day’s work to service engineers who work in widely dispersed areas. each service engineer has a microcomputer which must be ready to receive data at a predetermined time during the night. at this time, documents prepared at the central computer location during the day are transferred.
Electronic mail is also possible by transferring the document to an intermediate computer. this avoid the need for sending and receiving computers to be in direct contact. mail can be sent to an intermediate computer which is always available. at a later date the mails can accessed by the receiving computer, whenever it is convenient to do so. this is the basis of most public electronic mail systems.
----gcse computer studies | longman revise guides.
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