---
title: "Moving RAMTOP in Timex/Sinclair 1000 Computers"
id: 35737
type: "document"
slug: "moving-ramtop-in-timex-sinclair-1000-computers"
url: "http://localhost/document/moving-ramtop-in-timex-sinclair-1000-computers/"
markdown_url: "http://localhost/document/moving-ramtop-in-timex-sinclair-1000-computers.md"
published_at: "2021-01-12T13:57:59+00:00"
modified_at: "2026-03-15T17:37:58+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Article by Anthony J. Oresteen (February 1985) explaining how to move RAMTOP on the ZX-81/TS-1000 to use 32K and 64K RAM packs, with BASIC examples for detecting and configuring the available memory."
category:
  - name: "Documentation"
    slug: "documentation"
    taxonomy: "category"
    url: "http://localhost/category/documentation/"
post_tag:
  - 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/"
indiv:
  - name: "Anthony Oresteen"
    slug: "anthony-oresteen"
    taxonomy: "indiv"
    url: "http://localhost/indiv/anthony-oresteen/"
doc_author: "Anthony Oresteen"
document_url: "https://archive.org/details/TimexSinclairEphemera/Moving%20RAMPTOP%20in%20Timex%3ASinclair%201000%20computers/mode/2up"
pages: 10
document_date: "February 2, 1985"
---

# Moving RAMTOP in Timex/Sinclair 1000 Computers

Article by Anthony J. Oresteen (February 1985) explaining how to move RAMTOP on the ZX-81/TS-1000 to use 32K and 64K RAM packs, with BASIC examples for detecting and configuring the available memory.