A Field Guide to Office Technology

A Field Guide to Office Technology

Ed Sobey

Language: English

Pages: 208

ISBN: 1556526962

Format: PDF / Kindle (mobi) / ePub

A Field Guide to Office Technology

Ed Sobey

Language: English

Pages: 208

ISBN: 1556526962

Format: PDF / Kindle (mobi) / ePub


With more than 160 entries detailing everything from the junk buried in desk drawers to that mysterious box blinking away in the coat closet, this practical guide navigates through modern office technology. Each entry includes a functional description of a device (what it is and how it works) as well as particulars on who invented it and how its design has evolved over the years. Devices are grouped according to their habitats—in the conference room, hanging from the ceiling, or connected to a computer—to assist in quick and easy identification. Solving office mysteries, such as why telephone keypads have their ones in the upper left corner while calculator keypads place the ones in the lower left corner, this fascinating resource decodes the often confusing technological landscapes of everyday offices.

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. . . . . 166 167 169 170 171 172 173 174 175 11 BEHIND THE SCENES . . . . . . . . 177 Registered Jack, Style 21X (RJ-21X) . . Patch Panel . . . . . . . . . . . . . . . . . . . . Split 50 or Rolm Block . . . . . . . . . . . . PBX . . . . . . . . . . . . . . . . . . . . . . . . . . Cable Amplifier and Splitter . . . . . . . . Network Server . . . . . . . . . . . . . . . . . Global Positioning System (GPS) Clock Transmitter . . . . . . . . . . . . . . . Pneumatic Controls for HVAC . . . . . . .

with the telegraph system. 100 A F I E L D G U I D E TO O F F I C E T E C H N O LO G Y 646-CRP OfficeTech_intR5.qxd 7/20/07 3:31 PM Page 101 Telephone B E H AV I O R It interrupts serious thought and brings news, both good and bad. H A B I TAT Virtually all offices have one or more phones, although some may not be connected to traditional land lines. Traditional phones are placed on desktops, very close to where the worker sits. H O W I T WO R K S Two wires connect the phone to the

pointers should never be pointed at people (or other animals). Diode lasers are similar to light emitting diodes (LED) that emit visible and infrared light. An electric current supplied by a battery causes electrons to move between two different semiconductors. Under lasing conditions, photons are emitted and in turn cause more photons to be emitted. The stimulated emission of light (radiation) is a laser, an acronym for light amplification by stimulated emission of radiation. I N TE R E S T I N

electrical charge to it, causing it to change position and change the level of light it allows past, which feeds the picture signal. Note that both cathode ray tube models and LCDs are measured diagonally across the screen. However, the advertised size for cathode ray tube models includes the plastic case and the screen; the LCD size does not include the case. Besides clarity of image and depth or number of colors, most important is the size of the viewable screen. I N TE R E S T I N G FAC TS

minutes 54.9 seconds N, and 122 degrees 6 minutes 7.7 seconds W, probably won’t help you find me.) So, navigational GPS units include maps and way-finding software that translate the GPS-provided position into a location on a street map. I N TE R E S T I N G FAC TS The twenty-four GPS satellites revolve around the earth twice a day at 12,600 miles above ground. 190 A F I E L D G U I D E TO O F F I C E T E C H N O LO G Y 646-CRP OfficeTech_intR5.qxd 7/20/07 3:33 PM Page 191 Power Adapter B

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