Uppercase characters are capital letters; lowercase characters are small letters. For example, box is in lowercase while BOX is in uppercase. The term is a vestige of the days when typesetters kept capital letters in a box above the lowercase letters.
A program that distinguishes between uppercase and lowercase is said to be case sensitive.
To transmit data from a computer to a bulletin board service, mainframe, or network. For example, if you use a personal computer to log on to a network and you want to send files across the network, you must upload the files from your PC to the network.
- uplink port
Another name for MDI port.
In satellite communications, uplink is the establishment of a communications link from a ground station up to the orbiting satellite. Contrast with downlink.
A new version of a software or hardware product designed to replace an older version of the same product. Typically, software companies sell upgrades at a discount to prevent users from switching to other products. In most cases, you must prove you own an older version of the product to qualify for the upgrade price. […]
Short for very high-speed Backbone Network Service, an experimental wide-area network backbone sponsored by the National Science Foundation (NSF) and implemented by MCI. vNBS has replaced NSFnet and is designed to serve as a platform for testing new, high-speed Internet technologies and protocols. It currently links several Supercomputer Centers (SCCs) and Network Access Points (NAPs) […]