a crappy computer maybe. or a broken computer.
An upload is a process of transferring data to another computer system. It also means to transmit data. It happens when a request from the browser you are using is sent to the internet.
No it does not. If your computer is off, it cannot send or receive data via the modem !
Input.Input.Input.Input.Input.Input.Input.Input.Input.Input.Input.
Processing.
Polling, on computer networks, involves a server and client. The Server will check if the client is ready to receive data. If not ,then data will not be transferred to the client.
full duplex
This is the process of entering data and programs in to the computer system. You should know that computer is an electronic machine like any other machine which takes as inputs raw data and performs some processing giving out processed data. Therefore, the input unit takes data from us to the computer in an organized manner for processing.
When a server takes a long time to send data to your computer
Terminal
Automatic Repeat reQuest, an errot control mechanism for data transmission.See the Related Link.
IF you meant 'retrieve deleted data' - there is software available that will recover deleted files - but only if the computer hasn't been used since the time of the deletion !