Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
3 types of compute system categories
|
1. microcomputer system
2. midrange system 3. mainframe system |
|
|
microcomputer
|
personal computer, network comps, professional workstations
|
|
|
computer or network terminals
|
any device that allows access to the computer...such as transaction terminal like ATM
|
|
|
network computers (NC's)
|
microcomputer designed for use with internet or corporate intranets by clerical workers with specialized or limited computing applications
|
|
|
information appliance
|
PDA's
|
|
|
Midrange system (also known as mini computers)
|
high-end network servers and other types of servers that can handle the large-scale processing of many business applications.
|
|
|
mainframe system
|
large, fast, and powerful computer systems
|
|
|
supercomputers
|
extrmely powerful computers that need to do millions of calculations per second
|
|
|
computer system concept
|
input: keyboards and touchscreens
processing: CPU with control unit and arithmetic logic unit output: visual display |
|
|
milsecond
mircroseond nanosecond picosecond |
thousand of second
millionth billionth trillionth |
|
|
miilion
billion |
meg
gig (also known as clock speed) |
|
|
moores law
|
computer power will double(number of transistors per circuit) every 18-24 months. the price will be cut in half every 18-24 months as well
|
|
|
peripherals
|
seperate from but can be controlled by CPU....monitors, printes, scanners
|
|
|
speech recognition
|
gaining in popularity now that we can use continuous speech recognition
|
|
|
optical scanning
|
devices that read text or graphics and convert them into digital input for you computer..into the format that your computer makes sense of
|
|
|
video monitor vs. lcd
|
cathode ray tube vs. liquid crystal display
|
|
|
direct access
|
primary storage media like RAM(circle that can go directly to it) and have unique storage address
|
|
|
sequential access
|
media such as magnetic tape (tape goes through reader and can retrieve info same amount of time) and dont have unique storage addresses and must be retrieved in a sequential process.
|
