Indicators

3 Hard disk bay Houses the computer’s hard disk (secured with screws) 4 Memory compartment Houses the computer’s main memory. 5 Battery release latch Release the battery for removal. 6 Battery bay Houses the computer’s battery pack.

The computer has four easy-to-read status indicators on the upper-right above the keyboard, and four on the front panel. Aspire 3640:

TravelMate 2420:

The power, battery and wireless communication status indicators are visible even when the LCD display is closed.