Some common acronyms on the test…

ISP – Internet Service Provider – Company that provides a building’s connection to the Internet

HTTP – Hypertext Transfer Protocol

HTTPS – Hypertext Tansfer Protocol Secure – Used for business transactions and exchange of sensitive data like credit card numbers

DMA – Direct Memory Access – A device can be assigned a DMA channel and input or output directly from memory, bypassing the Central Processing Unit, which speeds its operation up.

IRQ – Interrupt ReQuest – These are now dynamically assigned, but at first, there were hardwired data lines that sent signals to the CPU and were handled in priority order.

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