VIDEO Technology Systems has released its Laser LT421 notebook computer, which operates at 33MHz. The notebook works on a 486 SLC/e-33 processor to achieve its speed. It has two MB of RAM which can be expanded to 10 MB, a 1.44-MB floppy disk and a white-paper, 10-inch, liquid-crystal display, VGA screen with 64 shades of grey. An 80-MB advanced removable hard disk allows the user to extend capacity easily. Despite all these features, the LT421 can operate for up to eight hours on one battery charge.