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CGS – 1100Introduction to Computer Applications
Computer: A programmable electronic device that can store, retrieve, and process data.
The word “Computer” emerged during WWII, people who operated desk calculators were called: Computers.
Human: Could add a two 10 digit number in 10 seconds, with
Calculator, in 4 Seconds.
Mark 1: Also called “Harvard Mark 1” Could add two 10-
digit numbers in about 0.3 seconds. 30 times faster than
Pencil and paper.
ENIAC: Electronic Numerical Integrator and Computer. The
world's first electronic digital computer was developed by
Army Ordnance to compute World War II ballistic firing
Tables. Could add the same in 0.0002 seconds, 50,000 times
faster than a human, and 1,500 times faster than the Mark 1.
Motherboard Operating System
Floppy Office 2003
Hard Drive Internet Explorer
Random Access Memory
Read Only Memory
SRAM: Static RAM
EPROM: Erasable Programmable ROM
DRAM: Dynamic RAM
PROM: Programmable ROM
Memory Size in MB
Extra Points: What mathematical equation
describes the pattern?
Operating System Software (OS): Tell the
computer how to work and what to do.
Windows, Linux and Macintosh.
Driver: Software that tells a hardware
component how to work.
Application Software: Accomplish a task
Using a computer. Word, Excel, PowerPoint