1 / 15

Computing and the Web

Computing and the Web. Computers: A First Look. Computers: A First Look. Beyond the Computer Invasion How many “computers” do you utilize in an average day? How many computers exist “behind the scenes” to support the ones you are using?

usoa
Download Presentation

Computing and the Web

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computing and the Web Computers: A First Look

  2. Computers: A First Look • Beyond the Computer Invasion • How many “computers” do you utilize in an average day? • How many computers exist “behind the scenes” to support the ones you are using? • How much information are you exposed to via these computers? • How much more than your parents? • 2X • 4X • ?X

  3. What is (and isn’t) a Computer • Computers have become commodities • Greeting Cards • Audio equipment (MP3, iPod, etc) • Computers are ingrained in everything • Are the following devices a computer?

  4. Classification? Babbage’s Difference Engine

  5. Classification? Bathroom / Postal Scale

  6. Classification? Abacus

  7. Classification? Ovaltine Decoder Ring

  8. Classification? Stonehenge

  9. What is (and isn’t) a Computer • How about: • PDA’s • Cell Phone • Calculator • Calendar • E-Book • Text book definition: • A device that takes data in one form, processes, it, and transforms it into information that is more useful than the original data

  10. What is (and isn’t) a Computer • A closer look: the Decoder Ring

  11. What is (and isn’t) a Computer Coded message: 1,7,19,17,0,23,20,0,10,26,7,0,7,11,7,24,16 Key Y = 1: YWJO QB VUW WHWZP Key Y = 2: ULEP NJ MGL LVLQD Key Y = 3: GSOD TE IZS SMSNX Key Y = 4: ZAPX BO WQA AIATK Key Y = 5: QCDK JP LNC CWCBF Key Y = 6: NRXF ED STR RLRJH Key Y = 7: TYKH OX ABY YSYEV Key Y = 8: BUFV PK CJU UAUOM Key Y = 9: JGHM DF REG GCGPI Key Y = 10: EZVI XH YOZ ZRZDW Key Y = 11: OQMW KV UPQ QYQXL Key Y = 12: PNIL FM GDN NUNKS Key Y = 13: DTWS HI ZXT TGTFA Key Y = 14: XBLA VW QKB BZBHC Key Y = 15: KJSC ML NFJ JQJVR Key Y = 16: FEAR IS THE ENEMY Key Y = 17: HOCY WA BVO OTOIU Key Y = 18: VPRU LC JMP PBPWG Key Y = 19: MDYG SR EID DJDLZ Key Y = 20: IXUZ AY OWX XEXSQ Key Y = 21: WKGQ CU PLK KOKAN Key Y = 22: LFZN RG DSF FPFCT Key Y = 23: SHQT YZ XAH HDHRB Key Y = 24: AVNB UQ KCV VXVYJ Key Y = 25: CMTJ GN FRM MKMUE Key Y = 26: RIBE ZT HYI IFIGO

  12. Classification of Computers • Electrical vs Mechanical • Digital vs Analog • Special Purpose vs General Purpose

  13. Classification of Computers • What is this?

  14. Classification of Computers The Commodore PET 2001 was a very successful machine. Four models were made: early 4KB models, the PET 2001-8N with 8 KB RAM, PET 2001-16N with 16 KB RAM and the PET 2001-32N with 32K RAM.

  15. Classification of Computers NAME PET 2001 MANUFACTURER Commodore TYPE Professional Computer ORIGIN U.S.A. YEAR 1977 BUILT IN LANGUAGE Commodore Basic 1.0 KEYBOARD 73 key 'chicklet' keyboard with numeric keypad CPU 6502 SPEED 1 mHz RAM 4 KB (early version) then 8 KB VRAM 1 KB ROM 14 KB TEXT MODES 40 x 25 GRAPHIC MODES None COLORS Monochrome

More Related