The PC turns 35 – iprofesional.com

On August 12, 1981 was born the PC, acronym for “personal computer”

. the team was created by a team of engineers and designers under the direction of Don Estridge and William C. Lowe, the IBM Entry Systems Division in Boca Raton, Florida.

the original machine had the following characteristics:

• the processor was a 8088 Intel <. / li>
   
• support chips motherboard were a clock generator 8284A, an interrupt controller 8259A, a bus controller 8288, DMA 8237A controller, timer 8253, a programmable interface peripheral 8255, all of Intel, most logical additional discrete implemented with TTL circuits.

 

• chips RAM memory were manufactured by third parties.

 
• video controller for both monochrome card (MDA) and for color graphics card (CGA), was the Motorola 6845.

 
• floppy drives Tandon were of the brand and the driver floppy drives was a NEC μPD765.

 
• keyboard had an Intel 8048 microprocessor.

 
• BIOS machine occupied 8K of ROM memory and was written by IBM.

 
• There was an interpreter BASIC , written by Microsoft in 32 KB of ROM of the motherboard.

 
• The operating system, DOS 1.0 , was also a product of Microsoft.

 

But perhaps what made the PC revolutionized the world was the fact that IBM decided that it would have a open architecture .

in this way, other manufacturers could produce and sell components, peripherals and compatible software without purchasing licenses.

the PC had changes that turned it into a very advanced machine .

to get an idea of ​​this kind of progress technology, the microprocessor Intel 4004 , operating at 740 kilohertz, when the current sixth generation Intel Core reaches more than 4 GHz.

for example, if the speed of the cars had increased at the same rate since 1971, would require about one second to travel by car from San Francisco to New York .

the computers based on the 8088 originally changed processor and today Intel chips, for example, have billions of transistors encapsulated in a small ceramic box that allows speeds up to 4 GHz .

the cost of the PC with two floppy disk drives and 256 KBytes was about US $ 1,556 .