Atari Portfolio
Specifications:
CPU: 80C88 @ 4.9152 MHz
Graphics: Monochrome 240 x 64
Memory: 128K of RAM and 256K of ROM (includes OS and Apps)
Expandability: Port on the right side for parallel, serial, modem or MIDI expansion modules
Value: £20 - £45. More, if manuals and network adaptors are included.