Which 32-bit microprocessor is used in IBM's PS2 model-80 computer?
Which 32-bit microprocessor is used in IBM's PS2 model-80 computer?
The correct option is C 80386
80386 32-bit
microprocessor is used in IBM's PS/2 model-80 computer.
The Intel 80386, also known as i386 or just 386, is
a 32-bit microprocessor introduced in 1985. The first versions had 275,000
transistors and were the CPU of many workstations and high-end personal
computers of the time. As the original implementation of the 32-bit extension
of the 80286 architecture, the 80386 instruction set, programming model, and
binary encodings are still the common denominator for all 32-bit x86
processors, which is termed the i386-architecture, x86, or IA-32, depending on
context.
The 32-bit 80386 can correctly execute most code
intended for the earlier 16-bit processors such as 8086 and 80286 that were
ubiquitous in early PCs. (Following the same tradition, modern 64-bit x86
processors are able to run most programs written for older x86 CPUs, all the
way back to the original 16-bit 8086 of 1978.) Over the years, successively
newer implementations of the same architecture have become several hundreds of
times faster than the original 80386 (and thousands of times faster than the 8086).
A 33 MHz 80386 was reportedly measured to operate at about 11.4 MIPS.
The 80386 was introduced in October 1985, while
manufacturing of the chips in significant quantities commenced in June 1986.
Mainboards for 80386-based computer systems were cumbersome and expensive at
first, but manufacturing was rationalized upon the 80386's mainstream adoption.
The first personal computer to make use of the 80386 was designed and
manufactured by Compaq and marked the first time a fundamental component in the
IBM PC compatible de facto-standard was updated by a company other than IBM.
80386 32-bit microprocessor is used in IBM's PS/2 model-80 computer.
The Intel 80386, also known as i386 or just 386, is a 32-bit microprocessor introduced in 1985. The first versions had 275,000 transistors and were the CPU of many workstations and high-end personal computers of the time. As the original implementation of the 32-bit extension of the 80286 architecture, the 80386 instruction set, programming model, and binary encodings are still the common denominator for all 32-bit x86 processors, which is termed the i386-architecture, x86, or IA-32, depending on context.
The 32-bit 80386 can correctly execute most code intended for the earlier 16-bit processors such as 8086 and 80286 that were ubiquitous in early PCs. (Following the same tradition, modern 64-bit x86 processors are able to run most programs written for older x86 CPUs, all the way back to the original 16-bit 8086 of 1978.) Over the years, successively newer implementations of the same architecture have become several hundreds of times faster than the original 80386 (and thousands of times faster than the 8086). A 33 MHz 80386 was reportedly measured to operate at about 11.4 MIPS.
The 80386 was introduced in October 1985, while manufacturing of the chips in significant quantities commenced in June 1986. Mainboards for 80386-based computer systems were cumbersome and expensive at first, but manufacturing was rationalized upon the 80386's mainstream adoption. The first personal computer to make use of the 80386 was designed and manufactured by Compaq and marked the first time a fundamental component in the IBM PC compatible de facto-standard was updated by a company other than IBM.
