upgrade

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Upgrade

1. An improvement to an existing product. Some companies, especially technology companies, offer upgrades to customers for free or at a discount.

2. An improvement to the quality of securities in a portfolio. For example, one may sell a stock with a given risk and return and buy another stock with a higher return at the same level of risk. Alternatively, a security may upgrade by itself; for example, its issuer may announce higher than expected earnings, and, therefore, a higher dividend.

3. An increase in a bond rating. For example, if a bond goes from a junk rating to an investment-grade rating, the bond is said to be upgraded. This usually occurs when the issuer reduces its exposure to one or more risks.

upgrade

to replace an existing COMPUTER system (HARDWARE and/or SOFTWARE) by a more powerful model capable of processing data faster or storing larger amounts of data. When upgrading, computer users can experience problems of compatibility with existing programs and machines.
References in periodicals archive ?
Optimized for embedded applications where reduced form factor, modularity, field upgradability and low-power consumption are important design considerations, the Xpand104 single-slot PCMCIA adapter requires only a single +5V power supply for operation and is available in both standard (0(degree)C to +70(degree)C) and extended temperature (-40(degree)C to +85(degree)C) versions.
In addition, the new ZEOS PCs support microprocessor upgradability utilizing "ZIF" (Zero Insertion Force) socket technology.
a leader in medical video imaging, announces the availability of the advanced TWINVIDEO(TM) module for its Image 1(R) camera systems, providing expanded functionality and system upgradability.