---
title: "Bank Switching and Operating System (BSOS)"
id: 20308
type: "product"
slug: "bsos"
url: "http://localhost/product/bsos/"
markdown_url: "http://localhost/product/bsos.md"
published_at: "2019-11-30T01:44:27+00:00"
modified_at: "2026-03-22T13:28:06+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2019/11/Hunter-BSOS-Time-Designs-v1-n4-26-791x1024-1.jpg"
excerpt: "Operating system for bank-switched memory on the ZX81/TS 1000. Documented in eight articles in T-S Horizons."
category:
  - name: "DOS"
    slug: "dos"
    taxonomy: "category"
    url: "http://localhost/category/software/dos/"
post_tag:
  - name: "Hunter Electronics"
    slug: "hunter-electronics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/hunter-electronics/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "DOS"
    slug: "dos"
    taxonomy: "genre"
    url: "http://localhost/type/dos/"
  - name: "Software"
    slug: "software"
    taxonomy: "genre"
    url: "http://localhost/type/software/"
company:
  id: 10940
  title: "Hunter Electronics"
  type: "company"
  url: "http://localhost/company/hunter-electronics/"
price: 10
date: 1985
rarity: "Uncommon"
articles:
  - article:
      id: 22242
      title: "The Best of Time Designs"
      type: "book"
      url: "http://localhost/book/the-best-of-time-designs/"
  - article:
      id: 16165
      title: "Bank Switching for the TS 1000, Part 1"
      type: "article"
      url: "http://localhost/article/bank-switching-for-the-ts-1000-part-1/"
  - article:
      id: 16181
      title: "Bank Switching for the TS 1000, Part 2"
      type: "article"
      url: "http://localhost/article/bank-switching-for-the-ts-1000-part-2/"
  - article:
      id: 16119
      title: "Bank Switching for the TS 1000, Part 7"
      type: "article"
      url: "http://localhost/article/bank-switching-part-7/"
  - article:
      id: 10587
      title: "Bank Switching for the TS 1000, Part 8"
      type: "article"
      url: "http://localhost/article/bank-switching-part-8/"
companies_products:
  - id: 10940
    title: "Hunter Electronics"
    type: "company"
    url: "http://localhost/company/hunter-electronics/"
---

Operating system for bank-switched memory on the ZX81/TS 1000. Documented in eight articles in T-S Horizons.

![Image](http://localhost/wp-content/uploads/2021/08/Hunter-BSOS-Time-Designs-v1-n4-26-791x1024.jpg)