DUAL PORTED
\djˈuːə͡l pˈɔːtɪd], \djˈuːəl pˈɔːtɪd], \d_j_ˈuː_əl p_ˈɔː_t_ɪ_d]\
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A term used to describe memory integrated circuits which canbe accessed simultaneously via two independent address anddata busses.Dual ported memory is often used in video display hardware,especially in conjunction with Video Random Access Memory(VRAM). The two ports allow the video display hardware toread memory to display the contents on screen at the same timeas the CPU writes data to other areas of the same memory. Insingle-ported memory these two processes cannot occursimultanteously, the CPU must wait, thus resulting in sloweraccess times. Cycle stealing is one technique used to avoidthis in single-ported video memory.
By Denis Howe
Word of the day
ASSESSED VALUATION
- This term applies to the precise value of property upon which taxes need be paid.