DSL
Hardware Software Telecommunication
Telecommunication is communication over a distance by cable, telegraph, telephone, or broadcasting. Cables are used for telecommunication. Telegraph is one form of telecommunication.
Computer Science = software ECE = hardware + software + telecommunication
Telecommunications is a mammoth industry, comprising companies that make hardware, produce software, and provide services.
Geostationary satellite
A database, as used by a computer, is a software programme that is used to store data (information). A card index is also a database, written on pieces of card - so, technically, a card index is a physical thing (hardware?), possibly.
Com stands for communication. Com ports are used to communicate with other pieces of hardware. A modem is an example. They are not that commonly used any longer.
The screen - or a printer.
"Computer Hardware"
A few examples of hardware are the monitor and the mouse. The hardware is the physical pieces of the computer. The software is the applications and programs on the computer.
CCITT and GSM
in the modern telecommunication era, postal rule is hardly used for creating contracts. explain