1. University of Utah 1 Meanwhile... Wang’s word processors -for the workplace Xerox’s GUIs -a research curiosity What computers are people using at home?

2. University of Utah 2 Personal Computers Round 1 (early 1970s) -Build-it-yourself kits -Altair MITS and clones Round 2 (1977) -TRS-80 -Commodore PET -Apple II

3. University of Utah 3 TRS-80 Tandy Corporation (1919) -leather supplies Radio Shack (1921) -ham radio supply stores

4. University of Utah 4 TRS-80 Tandy Corporation (1919) -leather supplies Radio Shack (1921) -ham radio supply stores Tandy buys Radio Shack (1963)

5. University of Utah 5 TRS-80 http://www.vintage-computer.com/images/trs80mod1system.jpg

6. University of Utah 6 TRS-80 Zilog Z80 processor 4K or 16K memory Two versions of BASIC $599 (for 4K version) -including monitor and tape recorder

7. University of Utah 7 TRS-80 catalog

8. University of Utah 8 Commodore Began in 1954 -Manufacturer of calculators 1976 – Buys MOS Technology, Inc. -Maker of 6502 microchip

9. University of Utah 9 Commodore PET http://techrepublic.com.com/2347-10877_11-1477-1478.html?seq=1

10. University of Utah 10 10 Commodore PET “Personal Electronic Transactor” 6502 Processor 4K or 8K versions BASIC (Microsoft) Built-in cassette drive “chiclet” keyboard $595

11. University of Utah 11 11 Commodore PET demo

12. University of Utah 12 12 Gentle reminder Essay rough draft due Friday!

13. University of Utah 13 13 Midterm Return and discuss

14. University of Utah 14 14 “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!)