7/29/2019 Session 3- Era of Digital Computers
1/11
7/29/2019 Session 3- Era of Digital Computers
2/11
8088 Microprocessor + FDD
PC (Personal Computer)
8088 + FDD + HDD
PC-XT (PC
extended technology)
The first microprocessor built in 1971 were
considered to be computers on silicon chips.
The Intel 4004 was used to power calculators
7/29/2019 Session 3- Era of Digital Computers
3/11
80286
8038680486 SX & DX
80586
Pentium IPentium II
Pentium IIIPentium 4
PC-AT(AdvancedTechnology)
7/29/2019 Session 3- Era of Digital Computers
4/11
Processor 80286
In 1982, In tel produced the 80286
micropro cessor. This was the f irst Intel ch ip
that cou ld run al l the softw are that was
w ri t ten fo r i ts predecessor. The 286, as it was
known, was so ld to over 15 m i ll ion people
around the wo rld. It also d id no t take long ,
before there were a host o f new brand 286chips and som e no -name brand 286 chips to
f lood the market .
7/29/2019 Session 3- Era of Digital Computers
5/11
Processor 80386In 1985, Intel buil t the revo lutio nary 386
m icropro cessor which was a 32 bi t chip that could
run mult ip le prog rams at the same t ime.
Apple produced the Apple Mack intosh wh ich was
the f i rs t compu ter to use a graphical user inter face
(GUI).A t the same time, Advanced Micro Devices were
also in compet it ion w ith Intel and were develop ing
variat ions of th e 386 m icropro cesso r. Soon , users
cou ld choo se between single speed and doub le
speed, much more memory and a var iety of hard
dr ive opt ions.
Microsoft launched Window s 3.0 in 1986 which
rival led the Apple GUI sys tem
7/29/2019 Session 3- Era of Digital Computers
6/11
Processor 80486
The rivalry between the various manufacturers,
brought about the 486 generation of computers.
The Intel 486 (TM) was the first processor to
offer a built-in math coprocessor whichspeeded up computing. Soon, the single speed
and double speed 486 processors were phased
out for the faster 486 DX -33 and the 486 DX-66.
As technology advanced at massive speeds,
the next phase of 486 allowed easierinstallation of hardware with plug and play Bios
and greater speed. The 486 DX2 was then
replaced by the superfast 486 DX4.
7/29/2019 Session 3- Era of Digital Computers
7/11
Processor Pentium
The Intel Pentium processor was introduced in
1993. This was a big leap from the 486 and was a
586 chip with a new name. Initially, the Pentium
chip gave many problems the main one beingoverheating which was solved by placing a fan
over the chip. The Pentium was designed to
include speech, sound and photographic images.
The CD-Rom development also played a big part
in the life of the Pentium.
7/29/2019 Session 3- Era of Digital Computers
8/11
Processor PentiumIIIntel launched the Pentium II processor in
1997. The Pentium II incorporated the
MMX(TM) technology and was designed to
process video, audio and graphics moreeffectively. Its high speed capabilities
brought the concept of "now" technology.
It is able to turn itself on when another
computer wishes to access it and when inshutdown mode, will automatically turn
itself off.
7/29/2019 Session 3- Era of Digital Computers
9/11
Processor PentiumIIIThe Intel Pentium III proc esso r o f 1999, was a
jump to the nex t level by In tel to try and get away
from AMD, the other com pany that produces
pro cesso rs. Intel jumped to the Pentium III at
speeds of 450 MHz and 500 Mhz wh ich left AMDflatfooted fo r a short whi le. The Intel Pentium III
was designed to run on the Internet and has bu i l t
in automatic securi ty features. It also has as a
design feature, 3D capabi l i t ies on th e proc essor.
A few mon ths after the release of the Pentium III,
AMD had the answer - the AMD K6 IIIP 3D Now
wh ich performs on a par with the Pent ium III bu t
is on ly a quarter of the price.
7/29/2019 Session 3- Era of Digital Computers
10/11
Chapter 1
History of Computers
Important Terminologies
Characteristics of a computer
Era of digital computers
Generations of Computer
Classification of Computer
Computer Applications
7/29/2019 Session 3- Era of Digital Computers
11/11