Test Flashcards
What is clock speed?
It is how fast a cpu can execute instructions
What is gigahertz?
Clock speed is measured in ghz which is a unit of frequency that is equal to one billion cycles per second.
What are the 2 types of general purpose computers?
One user at a time or multiple concurrent users.
What was the process which served hundreds of users at a time?
Time sharing
MRP
Manufacturing Resources planning
What is a minicomputer?
Better than micro computers
Worse than mainframe
Eg. Laptop Desktop phone etc
What are microcomputers?
Worse than minicomputers
Small low cost
What is a terminal?
Hardware used to enter, retrieve display Electronic data.
What are the 2 types of terminals?
Dumb and smart
What is a dumb terminal
Non programmable
Cannot do any processing on it’s own
It can not run programs only displays
Like a monitor
What is a smart terminal
Programmable
Does some processing on its own
Sometimes has a disk drive for reading and writing files.
What is a phone generation
It refers to the capabilities of the cellular networks.
What are the 5 phone eras?
Brick
Candy bar
Feature phone
Smartphone
Touch
What are the 2 types of systems
Front end and back end
What is front end system
It is what the user interacts with.
What is back end
Deals with databases and data processing
What is a distributed system
It is a computing environment in which various components are spread across multiple computers on a network
What is parallel processing system
It is the simultaneous execution of the same task on multiple processors to obtain results faster
What is software
Computer programs that control hardware
What are the types of software
System
Application
Specialized
What is system software
It controls the hardware (operating systems)
What is the 3 type of system software
OS
Utility programs
Middleware
What is application software
Software to carry out a specific task eg. Word
2 types of application software
Proprietary and off the shelf
