The HP 95LX was launched on April 23, 1991 before the term personal digital assistant, or PDA, found its way into everyday use putting the power of a computer into the palm of your hand. It ran MS-DOS v3.22 in 512K bytes of RAM and 1M-byte ROM and had a QWERTY keyboard and a separate numeric keypad.
My 95LX came with a 256K melcard which expanded the storage a bit. I've not donw much with it as it suffers from a limitation due to the date not being Y2K compatible. It's a neat machine though.