Short for Transaction Signature, TSIG is a computer networking protocol used by the Domain Name System (DNS) as a way to authenticate updates to a dynamic DNS database. The RFC 2845 specification specifically states that the TSIG protocol allows for transaction level authentication using shared secrets and one way hashing. It can be used to authenticate dynamic updates as coming from an approved client, or to authenticate responses as coming from an approved recursive name server.
Short for Thin Small Outline Package, it’s a surface-mount memory packaging from Intel. Features of the TSOP include the following: JEDEC and EIAJ standard dimensions, it’s the smallest leaded package form factor for flash, 0.5 mm (19.7 mil) lead pitch, reduced total package height, 1.20 mm maximum, gull wing formed leads, and supports future flash […]
Abbreviation of terminate and stay resident. Refers to DOS programs that can be memory resident (remaining in memory at all times once they are loaded). Calendars, calculators, spell checkers, thesauruses, and notepads are often set up as TSRs so that you can instantly access them from within another program. TSRs are sometimes called pop-up programs […]
Short for Time To First Fix, in GPS systems it means the amount of time required to get a fix on as many satellites as required to determine your position.
(1) Short for transistor-transistor logic, a common type of digital circuit in which the output is derived from two transistors. The first semiconductors using TTL were developed by Texas Instruments in 1965. The term is commonly used to describe any system based on digital circuitry, as in TTL monitor. (2) Short for Time to Live, […]
- TTL monitor
TTL stands for transistor-transistor logic and refers to a special type of digital circuit. More commonly, however, TTL is used to designate any type of digital input or device. A TTL monitor, therefore, is a monitor that accepts digital input. TTL monitors are consistent with older graphics standards such as MDA, but all newer graphics […]