- IBM Disk BASIC
IBM Disk BASIC Appeared in 1981 Developer Microsoft (for IBM) Influenced by IBM Cassette BASIC Influenced IBM BASICA, GW-BASIC
IBM Disk BASIC was a version of the Microsoft BASIC programming language licensed by IBM for the IBM PC DOS. It was included in the original IBM PC DOS and required the original IBM PC BIOS to run. The name Disk BASIC came from its use of floppy disks rather than cassette tapes to store programs and data. GW BASIC is a standalone compatible successor of IBM Disk BASIC that doesn't require the original IBM PC BIOS to run. A later version IBM BASICA (short for "Advanced BASIC") added features to support graphics, sound (on the built-in speaker), and event handling for communications and joystick presses. Neither version of IBM BASIC would run on on non-IBM computers or later IBM models, since those lack the needed ROM BASIC; the equivalent to BASICA for non-IBM MS DOS compatible computers was GW-BASIC.
BASIC was loaded when its name was typed at a command prompt, with some optional parameters to control allocation of memory. When loaded, it displayed a sign-on identification message and started a full-screen text editor. The function keys were assigned common commands, which were displayed at the bottom of the screen. Commands could be typed in to load and save programs, and expressions could be typed in and executed in immediate mode. If a line of input started with a number, the language system stored the following line of text as part of program source. When listed on screen, lines were displayed in order of increasing line number. Changes could be made to a displayed line of program source code by moving the cursor to the line with the cursor keys, and typing over the on-screen text. Program source was stored internally in a tokenized form, where keywords were replaced with a single byte token, to save space and save execution time. Programs could be saved in compact tokenized form, or optionally saved as DOS text ASCII files that could be viewed and edited with other programs. Like most other MS DOS applications, BASICA was a text-mode program and had no features for windows, icons, mouse support, or cut and paste editing.
IBM personal computers came with several versions of BASIC. Cassette BASIC was built into the BIOS ROMs of the original PC and XT, and early models in the PS/2 line. It only supported a cassette tape interface for loading and saving programs, which was unavailable on models after the original Model 5150. Disk BASIC (BASIC.COM) added functions to use files on diskette, and also supported the serial port. It made use of the cassette BASIC ROM software and so would not run on machines not equipped with the IBM ROMs. Advanced BASIC (BASICA.COM) provided event trapping, extended support for monophonic sound (using the PC's built-in speaker), and graphics functions to set and clear pixels, draw lines and circles, and set colors. Advanced BASIC also required the casssette ROMs to function. A cartridge version of BASIC was only available on the IBM PCjr and supported the additional graphics modes and sounds possible on that platform.
GW-BASIC was a Microsoft product distributed with non-IBM MS DOS computers, and supported all the graphics modes and features of BASICA on computers that did not have the IBM cassette BASIC.
- ^ http://www.atarimagazines.com/compute/issue78/003_4_Readers_Feedback_IBM_BASIC_Versions.php Computer! Magazine, No. 78, November 1986 p. 8, retrieved February 23, 2011
BASIC programming language ClassicAltair BASIC · Applesoft BASIC · Atari BASIC · Atari ST BASIC · BASIC Programming · Color BASIC · Commodore BASIC · Dartmouth BASIC · Family BASIC · G-BASIC · GFA BASIC · GW-BASIC · HP BASIC for OpenVMS · IBM BASICA · IBM Cassette BASIC · IBM Disk BASIC · Integer BASIC · Locomotive BASIC · Mallard BASIC · Microsoft BASIC · MSX BASIC · ScriptBasic · Sinclair BASIC · Southampton BASIC System · STOS BASIC · TI BASIC (TI 99/4A) · TI-BASIC (calculators) · Tiny BASIC · Turbo-Basic XL · UBASIC · Vilnius BASIC Procedure-oriented With object extensions For mobile devices
Wikimedia Foundation. 2010.
Look at other dictionaries:
IBM Cassette BASIC — was a version of the Microsoft BASIC programming language licensed by IBM for the IBM PC. It was included in the BIOS ROM of the original IBM PC. Cassette BASIC provided the default user interface if there was no floppy disk drive installed, or… … Wikipedia
Early IBM disk storage — The invention of magnetic disk storage, pioneered by IBM in the 1950s, was a critical component of the computer revolution. This article surveys the major IBM computer disk drives introduced in the 1950s, 1960s and early 1970s. The basic… … Wikipedia
IBM BASICA — Screen shot of IBM BASICA on an IBM PC Appeared in 1981 (1981) Developer Microsoft (for IBM) … Wikipedia
BASIC — This article is about the programming language. For the think tank, see British American Security Information Council. For the group of countries, see BASIC countries. For other uses, see Basic (disambiguation). BASIC Screenshot of Atari BASIC,… … Wikipedia
IBM PC — (modelo 5150) IBM PC 5150 con teclado y monitor monocromático verde (5151), ejecutando MS DOS 5.0 Tipo Computador personal Comercializado … Wikipedia Español
IBM Personal Computer — infobox computer Name = IBM PC (model 5150) Photo = Type = Personal computer Released = August 12, 1981 Discontinued = April 2, 1987 Processor = Intel 8088 @ 4.77 MHz Memory = 16 kB 256 kB OS = IBM BASIC / PC DOS 1.0 CP/M 86 UCSD p SystemThe IBM… … Wikipedia
IBM Personal Computer BASIC — El IBM Personal Computer BASIC o IBM BASIC eran tres versiones del lenguaje de programación BASIC para el IBM PC, llamadas: Cassette BASIC, Disk BASIC y Advanced BASIC. Fueron versiones licenciadas por IBM para el IBM PC del interpretador BASIC… … Wikipedia Español
IBM PC DOS — PC DOS (IBM DOS) Parte de la familia DOS Captura de pantalla del PC DOS 1.10. Desarrollador … Wikipedia Español
IBM 7090 — The IBM 7090 was a second generation transistorized version of the earlier IBM 709 vacuum tube mainframe computers and was designed for large scale scientific and technological applications . The 7090 was the third member of the IBM 700/7000… … Wikipedia
IBM JX — The IBM JX (or JXPC) was an personal computer released in 1984 into the Japanese, Australian and New Zealand markets. Designed in Japan, it was based on the technology of the IBM PCjr and was designated the IBM 5511.With a professional keyboard… … Wikipedia