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In an attempt to capture a lucrative business market, Commodore Business Machines produced a dramatically upgraded business oriented version of the PET which they dubbed the "SuperPET" or CBM 9000.

The very early versions of the PET had a built-in tape recorder with motor control, a built-in monitor, and ROM basic. The first PET's had a non-standard keyboard, while the later ones more closely approximated the style of a typewriter keyboard, and featured the graphics symbols on the front of the keys.

CBM9000	Technical Specifications
Microprocessor	MOS 6502
System Memory	2K ROM - 3K RAM
User Area	3K RAM - 3K if Basic Interpreter not used
Keyboard	Qwerty layout - 66 keys including 4 function keys
Display	22 columns 25 lines 255 displayable characters
Resolution	192 x 200 pixels
Colours	16 - 8 for the foreground and 8 for the background or border
Sound	3 tone generators + white noise generator
Input/Output	RS232C Commodore Serial Port
Cassette Drive	C1531 Cassette Drive port
Joysticks	2 Joystick ports
Other	ROM Cartridge port
Price	US$1995
Datasette	US$74.95