University of Utah 1 Meanwhile... Wang’s word processors -for the workplace Xerox’s GUIs -a...

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of Utah

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Meanwhile...

• Wang’s word processors- for the workplace

• Xerox’s GUIs- a research curiosity

• What computers are people using at home?

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of Utah

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Personal Computers

• Round 1 (early 1970s)- Build-it-yourself kits- Altair MITS and clones

• Round 2 (1977)- TRS-80- Commodore PET- Apple II

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of Utah

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TRS-80

• Tandy Corporation (1919)- leather supplies

• Radio Shack (1921)- ham radio supply stores

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of Utah

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TRS-80

• Tandy Corporation (1919)- leather supplies

• Radio Shack (1921)- ham radio supply stores

• Tandy buys Radio Shack (1963)

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of Utah

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TRS-80

http://www.vintage-computer.com/images/trs80mod1system.jpg

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of Utah

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TRS-80

• Zilog Z80 processor• 4K or 16K memory• Two versions of BASIC• $599 (for 4K version)

- including monitor and tape recorder

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of Utah

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TRS-80

• catalog

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of Utah

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Commodore

• Began in 1954- Manufacturer of calculators

• 1976 – Buys MOS Technology, Inc.- Maker of 6502 microchip

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of Utah

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Commodore PET

http://techrepublic.com.com/2347-10877_11-1477-1478.html?seq=1

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of Utah

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Commodore PET

• “Personal Electronic Transactor”• 6502 Processor• 4K or 8K versions• BASIC (Microsoft)• Built-in cassette drive• “chiclet” keyboard• $595

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of Utah

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Commodore PET

• demo

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of Utah

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Gentle reminder

• Essay rough draft due Friday!

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of Utah

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Midterm

• Return and discuss

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of Utah

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“Test Question”

• On a scrap of paper, write a question that encapsulates one of the points from today's class, and turn it in.

• (Put your name on it!)