1. The UM Institute of Technology
History of Computer
In 1888, Herman Hollerith created a card punch machine for US Census, Six weeks work instead of the 7 years by hand. Till 1942
Instructor: David Chen

2. The UM Institute of Technology
History of Computer
1943, ENIAC Electronic Numerical Integrator Analyzer and Computer by US Army. 5000/sec., 30 tons, 100 feet long / 8 feet high, 1,500 Relay/ 17,468 vacuum tubes, Cost ½ million,
Instructor: David Chen

3. The UM Institute of Technology
History of Computer
MANUFACTURER IBM
CPU Intel 8088/8188
SPEED MHz(XT)
RAM From 64k to 640k
Display: Mono/COLORS 16
8 bit ISA
One/Two 5.25'' FDD, 180k/ 360k
10Mb or 20Mb HD (XT only)
IRQ = 7
1983, IBM introduce 1st PC (Professional Computer) Stand alone and network able model, IBM PC and PC XT
Instructor: David Chen

4. The UM Institute of Technology
History of Computer
MANUFACTURER IBM
CPU Intel 80286
SPEED 6 MHz
RAM From 640k
Display: COLORS 16 CGA
16 bit ISA
One 5.25'' FDD, 360k/720k
10Mb or 20Mb HD (XT only)
IRQ = 7
OS MS DOS
1986, IBM introduce PC AT (286) Stand alone and network able model, Standard AT KB, 101 Key, The Later Model 2.5” FDD
Instructor: David Chen

5. The UM Institute of Technology
Power Supply
Case
Mother Board
CPU
Int. Removable Driver
Int. Hard Disk
Memory
Video Card
CD/DVD ROM
Modem (Optional)
NIC (Optional)
Sound Card (Optional)
Ext. Attach (Optional)
Instructor: David Chen

6. A typical ATX PC mother board
The UM Institute of Technology
A typical ATX PC mother board
Instructor: David Chen

7. Key Word Concepts The UM Institute of Technology
BIOS: basic input/output system 
CMOS: complementary metal-oxide
semiconductor
CPU: central processing unit
ROM: read only memory
RAM: random access memory
IDE: integrated drive electronics
SCSI: small computer system interface
RAID: redundant arrays of inexpensive
disks
IRQ: Interrupt Request Channel
Instructor: David Chen

8. Mother Board Expansion Slots
The UM Institute of Technology
Mother Board Expansion Slots
ISA: Industry Standard Architecture 8/16 bit, 8MHz 
EISA: Extended Industry Standard Architecture 32 bit, 8MHz
MCA: Micro Channel Architecture 32 bit, 10MHz
VESA: Video Electronic Standard Architecture 32 bit, 25-33MHz
PCI: Peripheral Component Interconnect 32 bit, 33MHz
HPCI: Hercules PCI /PCI bit, 33/66MHz
PCIx: bit, 66/133MHz
AGP: Advanced Graphic Port 64/128 bit, 66MHz
Instructor: David Chen