Well-known communications protocols are Ethernet, a hardware and Link Layer standard that is ubiquitous in local area networks, and the internet Protocol Suite, which defines a set of protocols for internetworking, i.e. for data communication between multiple networks, as well as host-to-host data transfer, and application-specific data transmission formats.
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typewriter... for office use i guess then for communication they use snailmail, pagers, telephone, telegram
The software is the series of instructions you issue to the hardware which are converted into electric pulses (from binary codes - strings of 0s and1s) to control the operations of the hardware; so, you see without the software the hardware cannot function.
He didn't. The computer age did not begin until well after the war.
Parts which make a computer are called computer components. These include CPU (central processing unit), input devices like keyboard, mouse and output devices like display or monitor, storage devices like RAM, hard disk drive etc. - Neeraj Sharma
As originally defined in the 1500s a computer is a person that computes. You are a computer.The word only acquired the modern meaning of an electronic machine that computes after ww2. There is one right in front of you that you use to access this site.Either way I don't need to describe it as you can see it yourself.