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Showing papers on "Personal computer published in 1977"


Journal ArticleDOI

182 citations


Book
01 Jan 1977
TL;DR: The eighth edition of this text features more coverage of programmable logic devices (PLDs), and Topics that apply to digital signal processing (DSP), a very rapidly advancing technology in electronics, have been expanded and improved.
Abstract: From the Publisher: NEW! The eighth edition features more coverage of programmable logic devices (PLDs). This technology is rapidly replacing the use of conventional small- and medium-scale ICs in modern digital systems. Interspersed throughout the text where appropriate, this PLD coverage offers students an alternative means of implementing digital logic circuits, from the simplest gates to complex systems. NEW! Each text is packaged with two free CD-ROMs. The first CD-ROM contains the entire library of Texas Instruments Logic Data Sheets, including all TTL series, CMOS, and bus interface parts. The second CD-ROM contains: Circuits from the text rendered in both Electronics Workbench™ and CircuitMaker ® software programs. Students with access to Electronics Workbench software can open and work interactively with the Electronics Workbench circuit files to increase their understanding of concepts and to prepare for laboratory activities. Free CircuitMaker Student Version software is included on the CD-ROM, enabling students to access the CircuitMaker files. A limited-compile demonstration version of the PAL Expert CUPL language compiler from Logical Devices, Inc. UPDATED! Topics that apply to digital signal processing (DSP), a very rapidly advancing technology in electronics, have been expanded and improved. UPDATED! Digital logic technology coverage and terms often encountered in personal computer literature have been updated and improved. UPDATED! Students have free access to the text's Companion Website at ...

144 citations


Journal ArticleDOI
D. A. Waterman1
TL;DR: The development of a RITA agent for Exemplary Programming (EP) is described, which learns new facts and stores them in a data base and can learn new procedures for data manipulation.
Abstract: This paper describes the development of a RITA agent for Exemplary Programming (EP). The EP agent learns new facts and stores them in a data base and can learn new procedures for data manipulation. Both the EP agent and the programs it creates are written as sets of IF-THEN rules (production systems) in RITA: the Rule-directed Interactive Transaction Agent system. The programs produced by the EP agent act as "personal computer agents" to perform a variety of tasks for the user. Program creation is a cooperative effort between the user and the EP agent: the user illustrates what he wants done by performing a series of operations on the computer, and the agent watches and asks the user pertinent questions during the demonstration. The resulting program then becomes the user's personal computer agent for performing the given task.

15 citations


Journal ArticleDOI
TL;DR: A production system called RITA has been developed on a PDP-11/UNIX minicomputer system, to allow the development of "user agents": small programs that perform useful tasks for a user.
Abstract: A production system called RITA has been developed on a PDP-11/UNIX minicomputer system, to allow the development of "user agents": small programs that perform useful tasks for a user. RITA rules are written in an English-like language, allowing an agent's logic to be understood by a computer-naive user. The RITA system contains explanatory facilities capable of giving substantial trace and historical information regarding the operation of a user agent. An example of the design and implementation of a user agent is given, followed by a discussion of advantages and disadvantages of production systems for this application. Most perceived advantages rely to some extent on the use of the system's explanatory facilities.

10 citations


Proceedings ArticleDOI
H. Lycklama1
13 Jun 1977
TL;DR: A modified version of the UNIX Operating System has been written to run on the LSI-11 micro-computer with 20K words of primary memory and floppy disks for secondary storage, which has appeal as a stand-alone system for dedicated applications.
Abstract: A modified version of the UNIX Operating System has been written to run on the LSI-11 micro-computer with 20K words of primary memory and floppy disks for secondary storage. This configuration permits most of the UNIX user programs to run on the LSI-11 micro-computer. The main programming language used is the structured high-level language, C. A background process as well as foreground processes may be run. A set of subroutines has been written to interface to the file system on the floppy diskettes. Asynchronous read/write routines are also available to the user.The LSI-UNIX system (LSX) has appeal as a stand-alone system for dedicated applications. It also has many potential uses as an intelligent terminal system. The decreasing costs of the hardware components make such a system a potential candidate for a very powerful and inexpensive personal computer system.

8 citations