Short for inverse multiplexing over ATM. IMA is a physical layer technology in which a high-speed stream of ATM cells is broken up and transmitted across multiple T1/E1 links, then is reconstructed back into the original ATM cell order at the destination. For companies with low to mid-range WAN requirements, the purchase of costly T3/E3 access is not a viable solution. IMA divides an aggregate stream of ATM cells across multiple T1/E1 WAN links on a cell-by-cell basis, mimicking the behavior of transmissions across T3/E3 lines.
IMA is a User-to-Network Interface standard approved by the ATM Forum in 1997.
- IM (Instant Message)
IM is short for instant message, a type of communications service that enables you to create a kind of private chat room with another individual in order to communicate in real time over the Internet, analagous to a telephone conversation but using text-based, not voice-based, communication. Typically, the instant messaging system alerts you whenever somebody […]
- Internet Message Access Protocol (IMAP)
Short for Internet Message Access Protocol, a protocol for retrieving e-mail messages. The latest version, IMAP4, is similar to POP3 but supports some additional features. For example, with IMAP4, you can search through your e-mail messages for keywords while the messages are still on mail server. You can then choose which messages to download to […]
- International Mobile Equipment Identity (IMEI)
IMEI is short for International Mobile Equipment Identity and is a unique number given to every single mobile phone, typically found behind the battery. IMEI numbers of cellular phones connected to a GSM network are stored in a database (EIR – Equipment Identity Register) containing all valid mobile phone equipment. When a phone is reported […]
Acronym for International Mobile Subscriber Identity, IMSI is a unique number that is associated with all GSM and UMTS network mobile phone users. An International Mobile Subscriber Identity is up to 15 digits long. The first three digits represent the country code, followed by the the network code. The remaining digits, up to fifteen represents […]
- IM worm
(ī-em wërm) (n.) A worm (i.e., a self-replicating program typically designed to perform harm to a computer or network) that propagates over instant messaging applications. The worm spreads by accessing the user’s instant messaging address book, or buddy list, and sends itself to individual recipients from that list. Like a worm that spreads over the […]