NEC 2000 manual Calendar Clock, Input/Output I/O Features, Video Memory, System Specifications B-3

Calendar Clock

Year/month/day/hour/minute/second/.01 second; maintained by battery

Battery type — Lithium coin cell

Input/Output (I/O) Features

Industry-standard interfaces integrated on system board:

!Universal Serial Bus (USB) — two USB ports support two USB peripherals directly to the system. With appropriate connector, the system supports up to 127 daisy-chained devices. Supports

12 megabits (Mbs) per second.

!Parallel — bi-directional, ECP/EPP support; one 25-pin connector

!Serial — one high-speed RS-232C port using a 16550 UART, supports transfer rates up to 115.2 KB per second; one 9-pin connector

!Keyboard — PS/2-compatible, 6-pin connector (mini DIN)

!Mouse — PS/2-compatible, 6-pin connector (mini DIN)

!Microphone In — supports a microphone or other audio input device for recording audio information in data files or broadcasting audio

!Line In — supports input from an external audio device

!Headphone — supports external headphone set

!IDE

—support for Ultra DMA/66 IDE hard drive and a CD-ROM drive

—support for PIO mode 3 and mode 4

!Diskette drive — supports 1.44-MB diskette drive; 34-pin connector

!PCMCIA CardBus support for two PC card slots (Type II and Type III PC cards)

!RJ-45 LAN connector.

Video Memory

Standard video memory — shared with system memory. Memory allocation controlled by Dynamic Video Memory Technology (DVMT).

System Specifications B-3