|
TJ-2
TJ-2 (Type Justifying Program) was published by Peter Samson in May 1963 and is thought to be the first page layout program. Although it lacks page numbering, page headers and footers, TJ-2 is the first word processor to provide a number of essential typographic alignment and automatic typesetting features: * Columnation, indentation, margins, justification, and centering * Word wrap, page breaks and automatic hyphenation * Tab stop simulation Developed from two earlier Samson programs, Justify and TJ-1, TJ-2 was written for the PDP-1 that was donated to the Massachusetts Institute of Technology in 1961 by Digital Equipment Corporation. Taking English text as input, TJ-2 aligns left and right margins, justifying the output using white space and word hyphenation. Text is marked-up with single lowercase characters combined with the PDP-1's overline character, carriage returns, and internal concise codes. The computer's six toggle switches control the input and output devices, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TYPSET And RUNOFF
TYPSET is an early document editor that was used with the 1964-released RUNOFF program, one of the earliest text formatting programs to see significant use. Of two earlier print/formatting programs DITTO and TJ-2, only the latter had, and introduced, text justification; RUNOFF also added pagination. The name RUNOFF, and similar names led to other formatting program implementations. By 1982, ''Runoff'' (a name not possible before lowercase letters were introduced to filenames) largely became associated with Digital Equipment Corporation and Unix computers. DEC used the terms ''VAX DSR'' and ''DSR'' to refer to ''VAX DIGITAL Standard Runoff''. History CTSS The original RUNOFF type-setting program for CTSS was written by Jerome H. Saltzer circa 1964. Bob Morris and Doug McIlroy translated that from MAD to BCPL. Morris and McIlroy then moved the BCPL version to Multics when the IBM 7094 on which CTSS ran was being shut down. Multics Documentation for the Multics version of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Samson
Peter R. Samson (born 1941 in Fitchburg, Massachusetts) is an American computer scientist, best known for creating pioneering computer software for the TX-0 and PDP-1. Samson studied at the Massachusetts Institute of Technology (MIT) between 1958 and 1963. He wrote, with characteristic wit, the first editions of the Tech Model Railroad Club (TMRC) dictionary, a predecessor to the Jargon File. He appears in '' Hackers: Heroes of the Computer Revolution'' by Steven Levy. Career The Tech Model Railroad Club As a member of the Tech Model Railroad Club in his student days at MIT, Samson was noted for his contributions to the Signals and Power Subcommittee, the technical side of the club. Steven Levy's ''Hackers: Heroes of the Computer Revolution'' outlines Samson's interest in trains and electronics, and his influence in the club. Levy explains how the club was in fact Samson's gateway into hacking and his ability to manipulate electronics and machine code to create programs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PDP-1
The PDP-1 (Programmed Data Processor-1) is the first computer in Digital Equipment Corporation's PDP series and was first produced in 1959. It is known for being the most important computer in the creation of hacker culture at the Massachusetts Institute of Technology, Bolt, Beranek and Newman, and elsewhere. The PDP-1 is the original hardware for one of the first video games, Steve Russell's 1962 game '' Spacewar!.'' Description The PDP-1 uses an 18-bit word size and has 4096 words as standard main memory (equivalent in bit size to 9,216 eight-bit bytes, but in character size to 12,388 bytes since the system actually divides an 18-bit word into three six-bit characters), upgradable to 65,536 words. The magnetic-core memory's cycle time is 5.35 microseconds (corresponding roughly to a clock speed of 187 kilohertz); consequently most arithmetic instructions take 10.7 microseconds (93,458 operations per second) because they use two memory cycles: the first to fetch the instruc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley ( BSD), Microsoft (Xenix), Sun Microsystems ( SunOS/ Solaris), HP/ HPE ( HP-UX), and IBM ( AIX). The early versions of Unix—which are retrospectively referred to as " Research Unix"—ran on computers such as the PDP-11 and VAX; Unix was commonly used on minicomputers and mainframes from the 1970s onwards. It distinguished itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language (in 1973), which allows U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multics
Multics ("MULTiplexed Information and Computing Service") is an influential early time-sharing operating system based on the concept of a single-level memory.Dennis M. Ritchie, "The Evolution of the Unix Time-sharing System", Communications of the ACM, Vol. 17, 1984, pp. 365-375. It has been written that Multics "has influenced all modern operating systems since, from microcomputers to mainframes." Initial planning and development for Multics started in 1964, in Cambridge, Massachusetts. Originally it was a cooperative project led by MIT ( Project MAC with Fernando Corbató) along with General Electric and Bell Labs. It was developed on the GE 645 computer, which was specially designed for it; the first one was delivered to MIT in January 1967. GE offered their earlier 635 systems with the Dartmouth Time-Sharing System which they called "Mark I" and intended to offer the 645 with Multics as a larger successor. Bell withdrew from the project in 1969 as it became clear it would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compatible Time-Sharing System
The Compatible Time-Sharing System (CTSS) was the first general purpose time-sharing operating system. Compatible Time Sharing referred to time sharing which was compatible with batch processing; it could offer both time sharing and batch processing concurrently. CTSS was developed at the MIT Computation Center ("Comp Center"). CTSS was first demonstrated on MIT's modified IBM 709 in November 1961. The hardware was replaced with a modified IBM 7090 in 1962 and later a modified IBM 7094 called the "blue machine" to distinguish it from the Project MAC CTSS IBM 7094. Routine service to MIT Comp Center users began in the summer of 1963 and was operated there until 1968. A second deployment of CTSS on a separate IBM 7094 that was received in October 1963 (the "red machine") was used early on in Project MAC until 1969 when the red machine was moved to the Information Processing Center and operated until July 20, 1973. CTSS ran on only those two machines; however, there were remot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paradise Lost
''Paradise Lost'' is an Epic poetry, epic poem in blank verse by the English poet John Milton (1608–1674). The poem concerns the Bible, biblical story of the fall of man: the temptation of Adam and Eve by the fallen angel Satan and their expulsion from the Garden of Eden. The first version, published in 1667, consists of ten books with over ten thousand lines of Verse (poetry), verse. A second edition followed in 1674, arranged into twelve books (in the manner of Virgil's ''Aeneid'') with minor revisions throughout. It is considered to be Milton's masterpiece, and it helped solidify his reputation as one of the greatest English poets of all time. At the heart of ''Paradise Lost'' are the themes of free will and the moral consequences of disobedience. Milton seeks to "justify the ways of God to men," addressing questions of predestination, human agency, and the nature of good and evil. The poem begins in medias res, with Satan and his fallen angels cast into Hell after their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Milton
John Milton (9 December 1608 – 8 November 1674) was an English poet, polemicist, and civil servant. His 1667 epic poem ''Paradise Lost'' was written in blank verse and included 12 books, written in a time of immense religious flux and political upheaval. It addressed the fall of man, including the temptation of Adam and Eve by the fallen angel Satan, and God's expulsion of them from the Garden of Eden. ''Paradise Lost'' elevated Milton's reputation as one of history's greatest poets. He also served as a civil servant for the Commonwealth of England under its Council of State and later under Oliver Cromwell. Milton achieved fame and recognition during his lifetime. His celebrated '' Areopagitica'' (1644) condemning pre-publication censorship is among history's most influential and impassioned defences of freedom of speech and freedom of the press. His desire for freedom extended beyond his philosophy and was reflected in his style, which included his introduction of new words ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Undo
Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited. With the possibility of undo, users can explore and work without fear of making mistakes, because they can easily be undone. The expectations for undo are easy to understand: to have a predictable functionality, and to include all "undoable" commands. Usually undo is available until the user undoes all executed operations. But there are some actions which are not stored in the undo list, and thus they cannot be undone. For example, ''save file'' is not undoable, but is queued in the list to show that it was executed. Another action which is usually not stored, and thus not undoable, is ''scrolling'' or ''selection''. The opposite of to undo is to redo. The redo command reverses the undo or advances ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oops
Oops or Oopsie is an interjection made in response to a minor mistake. It may also refer to: Television and film * "Oops" (Frasier episode), an episode of the TV sitcom ''Frasier'' * "Oops" (Family Ties episode), an episode of the TV sitcom ''Family Ties'' * ''Ooops!'' (1970s TV series), a French-Canadian TV comedy series * ''Oops!'' (film), a 2003 Hindi drama film Music * "Oops!" (Super Junior song), 2011 * " Oops (Oh My)", a 2002 song by Tweet featuring Missy Elliott * Hit 'Em Up Style (Oops!), a 2001 song by Blu Cantrell * "Oops", a 1956 Warren and Mercer song performed by Ella Fitzgerald and Louis Armstrong * "Oops", a 1962 song by Bill Doggett and His Combo * "Oops", a 1966 song by Neil Christian Neil Christian (born Christopher Tidmarsh, 14 February 1943 – 4 January 2010) Related session musicians * Paul Brett *Jimmy Page * Ritchie Blackmore * Nicky Hopkins *Albert Lee Albert William Lee (born 21 December 1943) is an English ... * "Oops!", a 1985 song ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode Ray Tube
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a Film frame, frame of video on an Analog television, analog television set (TV), Digital imaging, digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been Williams tube, used as memory devices, in which case the screen is not intended to be visible to an observer. The term ''cathode ray'' was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons. In CRT TVs and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster scan, raster. In color devices, an image is produced by con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
