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The IBM PC monitor, announced in 1981, could output both text and graphics.
It could manage two graphics modes, a resolution of 320 x 200 pixels with up to four colours or 640 x 200 pixels with a monochrome display.
The monitor had four text modes, based on either 40 columns by 25 lines or 80 columns by 25 lines, with up to 16 colours.
It was usually driven by an IBM PC Color/Graphics Adapter (CGA), which included a Motorola MC6845 display controller and 16KB of video memory. It had a 4-bit RGB1 interface.
The IBM 5155 Portable PC might weigh as much as a small suitcase but it was portable, something that couldn't be said of most computers when it was released in 1984.
The machine was deemed "luggable", a reference to its heft and the fact it weighed a not inconsiderable 30 pounds — roughly 30 times more than an iPad Air.
Inside the computer was an IBM PC XT motherboard with an Intel 8088 processor running at 4.77MHz (the same as the original IBM PC).
It came with 256KB of RAM, expandable to 640KB. It had one or two 360KB half-height 5.25-inch diskette (floppy disk) drives and an IBM PC colour graphics adapter driving a built-in nine-inch orange monochrome CRT display.
The Portable PC's operating system was IBM PC Dos 2.1 or later.
The IBM 5216 Wheelprinter, released in the early 1980s, was designed to be attached to a PC.
The machine uses daisy-wheel printing technology, where raised characters are set on spokes radiating out from a central hub. The machine's print mechanism is a simplified version of that of the IBM 5218 Displaywriter printer.