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Stand Alone Printing and Recording Terminal

IP.com Disclosure Number: IPCOM000089579D
Original Publication Date: 1977-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Milroy, RH: AUTHOR [+2]

Abstract

This article describes a method and apparatus for storing transaction data, control programs and algorithms and other similar tables in a point-of-sale or similar terminal. This provision makes the terminal essentially independent of external controllers and computer backup. A typical problem in point-of-sale and other stand-alone terminals is that they must have control programs stored, usually in volatile memory, for operation of the terminal. When power interruptions, either planned or unplanned, occur, a reload of these programs from an external source is required. Usually, such terminals also have transaction data which is captured for storage in a nonvolatile memory.

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Stand Alone Printing and Recording Terminal

This article describes a method and apparatus for storing transaction data, control programs and algorithms and other similar tables in a point-of-sale or similar terminal. This provision makes the terminal essentially independent of external controllers and computer backup. A typical problem in point-of-sale and other stand-alone terminals is that they must have control programs stored, usually in volatile memory, for operation of the terminal. When power interruptions, either planned or unplanned, occur, a reload of these programs from an external source is required. Usually, such terminals also have transaction data which is captured for storage in a nonvolatile memory.

The figure shows a magnetic recording system for capturing point-of-sale data in a nonvolatile disk which may also contain the initializing programs and algorithms for the terminal itself. The recording head is moved in a linear oscillatory fashion by the printer mechanism itself. In the figure, magnetic disk 1 is provided with a spindle drive 2 and a disk attaching mechanism 3 so that the disk 1 may be rotated by a drive means (not shown). The disk 1 is not continuously rotated here, but is incremented by the incrementing detent 4 and detent notches 5 to a fixed position, and held there.

Data is recorded by magnetic read/write head 6 mounted for movement along a chordal track 7 on disk 1. The chordal tracks 7 are arranged on disk 1 such that the bit position on the innermost radial point a...