Technical specifications

NumWorks graphing calculator technical specifications

General

Color

White

Dimensions

6.3 × 3.2 × 0.4 inch

Weight

5.9 ounces

CPU

216 MHz ARMv7 processor

Flash ROM

8 MB

Static RAM

256 KB

Power

Integrated rechargeable battery

Connector

USB Micro-B

LED

Glow-through RGB

Screen

Size

2.8-inch diagonal

Resolution

320 × 240 pixels, 140 PPI

Type

IPS LCD

Colors

262 144


Battery

Capacity

1450 mAh

Autonomy

20 hours in use1, several years in standby

Type

Lithium-Polymer

1. Computed based on typical classroom usage: device fully on (backlight at maximum brightness) half of the time, and idle (screen dimmed) the other half. The device draws 113 mA when fully backlit, and 36 mA when dimmed, which gives an average current of 74.5 mA. Given a 1620 mAh battery, this amounts to 21 hours and 45 minutes of use.