history of computers

​History of computers review

​ABACUS

​*one of the first devices used to count and keep track of numbers.

​*introduced by the Romans in 500 CE

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​BINARY NUMBER SYSTEM

• the base-2 numeral system or binary numeral system, a method of mathematical expression which uses only two symbols: typically "0" and "1"

• ​

• used in computers to manipulate and store data

​Altair 8800

​*designed by Ed Roberts , who owned calculator company MITS

​*first microcomputer kit

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​ALTAIR, con't

*Bill Gates and Paul Allan jumped at the chance to design a BASIC program to improve it

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​*inspired many computer enthusiasts, including Steve Jobs and Steve Wozniak of Apple

​Beginners' All-purpose Symbolic Instruction Code

​BASIC

• ​designed in 1950s in Dartmouth University

• ​simplified coding language

• ​more user freindly than previous language

​Apple Computers

• founded by Steve Jobs and Steve Wozniak ​in 1976 in their garage

• ​designed more user friendly personal computers

​ETHERNET

• developed in 1970s by XEROX

• technology to connect devices with local area​ network (LAN)

Multiple Choice

Who invented the Tabulating Machine?

• Gottfried Wilhelm Leibniz

• Charles Babbage

• Herman Hollerith

• Howard H. Aiken

Multiple Choice

Who was the first person to create the first personal electronic computer?

• Grace Hopper

• Charles Babbage

• Elon Musk

• Hollerith

Multiple Choice

What is BASIC?

• The first electronic computer

• An early computer code that was more user friendly

• The first internet

Multiple Choice

Which was the first computer kit that led to the development of Microsoft and Apple?

• Altair 8800

• XEROX 700

• Mac 1

• BASIC

Multiple Choice

The first computer progammer was ______________.

• Ada Lovelace

• Charles Babbage

• Herman Hollerith

• Howard H. Aiken

Fill in the Blanks

is the first technology used to connect devices with wires.

Multiple Choice

This machine was used to count and sort information for the US census. It was the __________________________.

• Abacus

• Hollerith's Tabulating Machine

• Analytical Engine

• Difference engine