Info: Quest Specialty Travel bought Sheehan Tours and is updating them to Quest's business practice with the help of Kevin Brien.
Types of Computers
*Computers are electronic devices used to process direction and manipulate info according to (classified by size, speed, and capabilities).
Personal Computer: used by single user (home/office)
Simple tasks include- word, numbers, photo and graphics, e-mail, Internet access, and search engines.
Mainframe: used by larger businesses/government
Holds large amount of data,
Cost Varies from $100,000 to multi-millions
Largest and fastest is a Supercomputer
Estimated cost $10million
Uses terminals to input and output data (keyboard - input/Monitor - output)
Terminal emulator is PC to Mainframe/SC personal workstation using special software.
Systems
*Design/construction: architecture/configuration
Specifications: details of each hardware component
Print speed of 8 pages per minute
Data: words, numbers, figures, sounds, etc.
modifying is known as processing
Processing: occurs on the motherboard
main electric component
Microprocessor: (Central Processing Unit [CPU] )
Circuits on silicon chip
Cards: removable circuit boards
Example: sound card: digital auto device Input/Output
Computer itself has processing functions but need additional components called peripheral devices.
Peripheral Devices: input, output and storage(/: f) consist of commands
Microprocessor determined by clock speed which is measured in megahertz and gigahertz
Word size refers to the amount of data processing.
Duel-Core Processor: one that has two single chips that can process 2x as fast. (multitasking)
Single-Core Processor: one chip for processing.
