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Character information
Common name TOPS-10
Also known as PDP-6 Monitor Software, Timesharing / Total Operating System
Human name(s) Valeria Kotok
First appearance 2008
Height 5'7"
Hair color Deep lilac
Eye color Violet
Weapon(s) Rapier
Faction Binteeji Renmei, formerly from the DEC Military
Lineage DEC
Rival(s) N/A
Technical information
System personified PDP-6 Monitor, TOPS-10
Developer(s) Digital Equipment Corporation
Debut Circa 1964
Latest release 7.04 / July 1988

Technical Details

Released 1967, TOPS-10 was a proprietary OS for the PDP-10 mainframe. It directly evolved from the PDP-6 Monitory program, which dates back to 1964. TOPS-10 was notable for being a popular hacker system, being fast, flexible nature, and playing host to a number of new technologies - such as multiplayer games and early chat programs.

Today TOPS-10 is still in use, primarily as a hobbyist OS on emulated PDP-10 systems.

Character details


TOPS-10-tan is depicted as a shapely woman with long, wavy lavender hair and purple eyes. During her days in the DEC Military she wore the standard uniform; today her wardrobe consists of contemporary casual-wear, with a few pieces from her old uniform included.

TOPS-10-tan's personality is best described as honest and loyal. Like many of her DEC peers, she is a highly sociable person, and is rarely without the company of friends and family. She is fond of multiplayer games and is an avid amateur radio operator. She is also a skilled tactician, a trait that made her the undisputed choice as leader of the DEC OS-tans.

Family and relationships

TOPS-10-tan is related to WAITS-tan, though their exact relationship is remains unclear (perhaps because of the often hard-to-define nature of OS-tan familial relationships). Tenex-tan and TOPS-10-tan aren't related by blood, but they quickly adopted each other as sisters when Tenex joined the DEC faction.

Background and history

Youth and rise to power