ISA bus seminar

ISA BUS (Industry Standard Architecture) by: PEEYUSH RUSTAGI B.TECH EI 6th SEM: 

ISA BUS (Industry Standard Architecture) by: PEEYUSH RUSTAGI B.TECH EI 6 th SEM

What is BUS ?: 

What is BUS ? A bus connects all the internal computer components to the CPU and Main memory. Every bus has a clock speed measured in MHz. A fast bus allows data to be transferred faster, which makes applications run faster. On PCs, the old ISA bus is being replaced by faster buses such as PCI.

I/O BUS: 

I/O BUS System Bus: Connecting to CPU, memory and Cache. Address Bus Data Bus Control Bus I/O Bus: Connecting to the above three buses is the "good old" standard I/O bus, used for slower peripherals (mice, modems, regular sound cards, low-speed networking) and also for compatibility with older devices. On almost all modern PCs this is the Industry Standard Architecture (ISA) bus.

Types of I/O Buses: 

Types of I/O Buses ISA Micro Channel (MCA) VESA Local bus (VL-bus) PCI Local bus PCI E

I/O BUS: 

I/O BUS ISA BUS (8 -16 bit) MCA (32bit) PCI BUS (32 or 64-bit) PCI E (32-bit) VESA (32 bit)

ISA BUS: 

ISA BUS In 1982 w hen ISA BUS appeared on the first PC the 8-bi t ISA bus ran at a modest 4.77MHZ – the same speed as Intel 8088 . ISA BUS is extremely slow by today's standards and not suited to the use of a graphical operating system like Windows.

ISA BUS: 

ISA BUS In 1984 the IBM AT was introduced using the Intel 80286; at this time the bus was doubled to 16 bits (the 80286's data bus width) and increased to 8 MHz (the maximum speed of the original AT, which came in 6 MHz and 8 MHz versions and 24 address lines ).

ISA BUS: 

ISA BUS 8-bit 16-bit

ISA BUS: 

ISA BUS Bus width 8 - bit Compatible with 8 bit ISA Pins 62 Power +5 V, -5 V, +12 V, -12 V Clock 4.7727266 MHz Bus width 16 - bit Compatible with 16 bit ISA Pins 98 Power +5 V, -5 V, +12 V, -12 V Clock 8.333333 MHz 8-bit ISA BUS 16-bit ISA BUS

ISA BUS: 

ISA BUS is used with sound cards, disk drives or most network and video cards. 8-bit ISA(XT) CARD 16-bit ISA CARD

ISA BUS: 

ISA BUS Int e l 80386DX CPU A ddress bus(32 bit) Data bus (32 bit) A 0 to A 31 D 0 to D 31 RD WR IO/M Control bus I/O bus (16 bit data) Storage Printer Video Modem Memory Keyboard

SOME FEATURE :: 

SOME FEATURE : This is the first card to provide individual bus frequency for higher transmission rates (4,6,8Mhz). It uses the parellel style developed by IBM. This card uses PMOS technology for higher transmission.

Elimination of ISA Bus: 

Elimination of ISA Bus ISA Bus is slow, hard to use and bulky . ISA plug in cards to be replaced by either PCI plug-in cards or USB add-on peripherals Limited number of interrupts .

Elimination of ISA Bus: 

Elimination of ISA Bus For individaul transmission of bits ,the frequency is limited. Since it uses PMOS technology,the overall power required additional voltage.

PowerPoint Presentation: 

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