Computers in LibrariesLIBR 56

• Anthony Costa– acosta@ccsf.edu – http://fog.ccsf.edu/~acosta/56.htm

• Name

• What you want to learn from this course.

LIBR 51

• If you haven’t completed LIBR 51, you need to talk to me about taking this class.

• Motherboard

• Sound Card

• Networking Card

• Mouse

• Memory

Terminology

ASCII – American Code for Information Interchange

Cache – space used for temporary storage

Card – wired panel that contains memory and a chip

Chip – tiny calculator inside a PC

• Input devices – keyboard, mouse

• Output devices – monitor, speakers

• Operating system

• Web browser

• Word processor

• Spreadsheets

• network

• Client/Server

• Software

• troubleshoot

Networking Basics

• A network is a group of 2 or more computer systems linked together– LAN– WAN

• http://webopedia.com/TERM/n/network.html

• Additional reading– http://webjunction.org/do/DisplayContent?

id=929

Troubleshooting

• A single public workstation produces an error message as soon as it is turned on, at the beginning of boot up. Could it be:– Workstation CPU– Workstation hard disk– Workstation monitor– Router– Web server

Troubleshooting

• A staff PC sounds like it is booting up, but the screen remains blank. Could it be:– Workstation CPU– Workstation disk storage– Workstation monitor– Router– Web server

ASCII

• American Standard Code for Information Interchange

• Additional reading for next week– http://webopedia.com/TERM/A/ASCII.html

Binary

• Computers think in binary code

• All data is represented in 0s and 1s. This means every character (textual or numeric) must be converted to binary code to be processed by a computer.

• Additional reading– http://theproblemsite.com/codes/binary.asp