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Encyclopedia > Intel 8088
Intel 8088
Central processing unit

An Intel 8088 microprocessor
Produced: From 1979 to 1982
Manufacturer: Intel
CPU Speeds: 4.77 MHz
Instruction Set: x86
Socket: 40 pin DIP

The Intel 8088 is an Intel microprocessor based on the 8086, with 16-bit registers and an 8-bit external data bus. It can address up to 1 MB of memory. The 8088 was introduced on July 1, 1979, and was used in the original IBM PC. “CPU” redirects here. ... Image File history File linksMetadata Download high resolution version (1020x346, 338 KB) Title : INTEL 8088 8-bits CPU. Licence : Source : Author personnal collection. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... “CPU” redirects here. ... A megahertz (MHz) is one million (106) hertz, a measure of frequency. ... It has been suggested that some sections of this article be split into a new article entitled instruction set architecture. ... x86 or 80x86 is the generic name of a microprocessor architecture first developed and manufactured by Intel. ... ICs in DIP14-Package Several PDIPs and CERDIPS. The large CERDIP in the foreground is an 8080 processor. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... A microprocessor is a programmable digital electronic component that incorporates the functions of a central processing unit (CPU) on a single semiconducting integrated circuit (IC). ... The 8086[1] is a 16-bit microprocessor chip designed by Intel in 1978, which gave rise to the x86 architecture. ... This article is about the unit of information. ... In computer architecture, a bus is a subsystem that transfers data or power between computer components inside a computer or between computers. ... ReBoot character, see Megabyte (ReBoot). ... Random access memory (usually known by its acronym, RAM) is a type of data storage used in computers. ... is the 182nd day of the year (183rd in leap years) in the Gregorian calendar. ... Also: 1979 by Smashing Pumpkins. ... IBM PC (IBM 5150) with keyboard and green screen monochrome monitor (IBM 5151), running MS-DOS 5. ...


The 8088 was targeted at economical systems by allowing the use of 8-bit designs. Large bus width circuit boards were still fairly expensive when it was released. The prefetch queue of the 8088 is 4 bytes, as opposed to the 8086's 6 bytes. The descendants of the 8088 include the 80188, 80186, 80286, 80386, and 80486 microprocessors which are still in use today. See the list below for a more complete list. The Intel 80188 is a version of the Intel 80186 microprocessor with an 8 bit external data bus, instead of 16 bit. ... The 80186 is a microprocessor that was developed by Intel circa 1982. ... The Intel 80286 is an x86-family 16-bit microprocessor that was introduced by Intel on February 1, 1982. ... The Intel 80386 is a microprocessor which was used as the central processing unit (CPU) of many personal computers from 1986 until 1994 and later. ... Intel i486 DX2- top view The Intel i486 (also called 486 or 80486) is a range of Intel CISC microprocessors which is part of the Intel x86 family of processors. ... A microprocessor is a programmable digital electronic component that incorporates the functions of a central processing unit (CPU) on a single semiconducting integrated circuit (IC). ...


The most influential microcomputer to use the 8088 was, by far, the IBM PC. The original PC processor ran at a clock frequency of 4.77 MHz (4/3 the NTSC colorburst frequency of 3.579545 MHz). IBM PC (IBM 5150) with keyboard and green screen monochrome monitor (IBM 5151), running MS-DOS 5. ... In synchronous digital electronics, such as most computers, a clock signal is a signal used to coordinate the actions of two or more circuits. ... Colorburst is a signal used to keep the chrominance subcarrier synchronized in a color television signal. ...


IBM's own engineers wanted to use the Motorola 68000, and it was used later in the IBM Instruments 9000 Laboratory Computer, but IBM already had rights to manufacture the 8086 family, in exchange for giving Intel the rights to its bubble memory designs. A factor for using the 8-bit Intel 8088 version was that it could use existing Intel 8085-type components, and allowed the computer to be based on a modified 8085 design. 68000 components were not widely available at the time, though it could use Motorola 6800 components to an extent. Intel bubble memory was on the market for a while, but Intel left the market due to fierce competition from Japanese corporations who could undercut by cost, and left the memory market to focus on processors. The Motorola 68000 is a 32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor (formerly Motorola Semiconductor Products Sector). ... The 8086 is a 16-bit microprocessor chip designed by Intel in 1978, which gave rise to the x86 architecture. ... Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one bit of data. ... The Intel 8085 was an 8-bit microprocessor made by Intel in the mid-1970s. ... Motorola 6800 Microprocessor The 6800 is a microprocessor produced by Motorola and released shortly after the Intel 8080 in 1975. ...


A compatible replacement chip, the V20, was produced by NEC for an approximate 20 percent improvement in computing power. The NEC V20 was a processor made by NEC that featured approximately 29,000 transistors. ... NEC Corporation is a multi-national information technologies company headquarterd in Minato-ku, Tokyo, Japan. ...


See also

It has been suggested that x86 assembly language be merged into this article or section. ... The IBM Personal Computer XT, often shortened to the PC XT or simply XT, was IBMs successor to the original IBM PC. It was released as IBM product number 5160 on March 8, 1983, and was one of the first computers to come standard with a hard drive. ...

References


  Results from FactBites:
 
Intel 8088 microprocessor family (300 words)
Intel 8088 microprocessor was released in 1979, or one year after the Intel 8086 CPU.
Both processors have the same architecture, and the only difference of the 8088 CPU from the 8086 is the external data bus width - it was reduced from 16 bits to 8 bits.
The 8088 CPU uses two consecutive bus cycles to read or write 16 bit data instead of one bus cycle for the 8086, which makes the 8088 processor to run slower.
Intel 8088 (289 words)
The prefetch queue of the 8088 is 4 bytes, as opposed to the 8086's 6 bytes.
A factor for using the 8-bit Intel 8088 version was that it could use existing Intel 8085-type components, and allowed the computer to be based on a modified 8085 design.
Intel bubble memory was on the market for a while, but Intel left the market due to fierce competition from Japanese corporations who could undercut by cost, and left the memory market to focus on processors.
  More results at FactBites »

 
 

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