Chapter 1 Digital Technologies Flashcards
What is a Computer?
- It is an electronic device that manipulates information or “data”
- It has the ability to store, retrieve and process data
What are the 3 types of computer
- Analog Computers
- Digital Computers
- Hybrid Computers
These type of computers can perform several mathematical operations simultaneously.
Analog Computers
These type of computer are almost extinct.
Analog Computers
These Type of computer uses continuous variables for mathematical operations and utilizes mechanical or electrical energy.
Analog Computers
With these types of computers, operations are on electrical input that can attain two inputs: States of On=1 and state of OFF = 0.
Digital Computers
What are the five(5) Categories of Computer
- Mainframe Computers
- Microcomputers
- Minicomputers
- Supercomputers
- Wearable Computers
These type of Computer is a combination of both digital and analog computers
Hybrid Computers
Give me the two(2) Classification of Microcomputers
- Personal Computer or PC
- Portable Computer
These Computers are being used by large organizations for highly critical applications such as bulk data processing.
Mainframe Computers
It is also known as the Personal Computer or PC
Microcomputers
A Computer with a microprocessor and its central processing unit is known as a _____________
Microcomputers
They are small enough to move easily from one place to another and they can operate on batteries.
Portable Computers
These are also called mid-range computer systems or workstations,
Minicomputers
The highly calculation-intensive task can be effectively performed means of ______________
Supercomputers
These Computers can be worn and are often used in the study of behavior modeling and human health
Wearable Computers
What is the difference between data and information?
Data is a representation of a fact, figure or idea. It can be a number, word, picture or sound recording.
Whilst, Information is data that has been organized or presented in meaningful fashion
Enumerate the five(5) basic operations to transform raw input data to usable information for their users. Step by Step
Step 1: Input
Step 2: Storage
Step 3: Process
Step 4: Output
Step 5: Workflow Control
It refers to a pattern or phenomenon in which two or more independent technologies are combined and constitute a new outcome.
Technological Convergence
The method of entering data and instructions into your computer system.
Input
save data and instructions in such a way that they are available for processing as and when necessary
Storage
Doing arithmetic, and logical data operations in order to turn them into useful knowledge.
Process
The method of creating useful information or outcomes for the user, such as a written report or a visual show.
Output
It directs the way and order in which all of the above operations are performed
Workflow Control
