Podcast Beta
Questions and Answers
This encompasses all of the technology that we use to collect, process, protect and store information. It refers to hardware, software (computer programs), and computer networks.
Computer Education
This concept involves transfer and use of all kinds of information. It is the foundation of economy and a driving force of social changes in the 21st century.
ICT or Information and communication Technology
a device used to input, process, stored and retrieve data.
Computer
an electronic device operates under the control of a set of instructions that are stored in its memory unit.
Signup and view all the answers
These processes work together and repeat over and over.
Signup and view all the answers
Information processing cycle
Signup and view all the answers
Components of a Computer System
Signup and view all the answers
the amount of time taken by the computer in accomplishing a task of an operation.
Signup and view all the answers
The time taken by a computer to perform a particular task is far less than that taken by than a human being. Different computers are classified on the basis of their speed by comparing their MIPS (Million Instructions Per Second).
Signup and view all the answers
refers to the degree of correctness and exactness of operations performed by a computer.
Signup and view all the answers
In the absence of bad programming, computers do not commit errors and are capable of handling complex instructions accurately.
Signup and view all the answers
If the data fed into a computer is error free, it is likely to produce inaccurate results.
Signup and view all the answers
Computer systems are non-respondent to human factors like fatigue, tiredness or boredom. Therefore, they are more likely to work repeatedly and efficiently. In case of any failure in a computer.
Signup and view all the answers
Computers are capable of performing all levels of tasks-simple or complex. Therefore, they can be used in any area-science, technology, business, finance, accounts, and communications and so on.
Signup and view all the answers
It refers to the capacity of a computer to store data and programs.
Signup and view all the answers
This is intended for personal use, as opposed to the server, which is used by a larger number of people simultaneously, from different locations.
Signup and view all the answers
This is used by individuals who have the need to travel with a computer or simply use them for aesthetic reasons when computing power is not an issue.
Signup and view all the answers
This more closely resemble a personal computer when it comes to data input.
Signup and view all the answers
a convenient small sized computer. It easily connects to mobile phones and can prove a good solution for less demanding users. As the name suggests, it is a device that fits in the user’s palm.
Signup and view all the answers
a portable electronic device used for distant communication.
Signup and view all the answers
a convenient small sized computer. It easily connects to mobile phones and can prove a good solution for less demanding users. As the name suggests, it is a device that fits in the user’s palm.
Signup and view all the answers
an optical disc used for data storage.
Signup and view all the answers
The standard capacity of a CD is ____. CD-R is used for reading.
Signup and view all the answers
an optical disc which is, due to the larger capacity (about 4.7 GB), mostly used for video storage.
Signup and view all the answers
the successor to DVD, is an optical disk storage, it comes in different capacities, depending on how many layers it has and the capacity of each layer.
Signup and view all the answers
a type of flash memory used to store data in digital cameras, cell phones, MP3 players etc.
Signup and view all the answers
a data storage device. It belongs to the type of flash memory that remembers data, even when not under voltage i.e. they do not need electric power to maintain data integrity.
Signup and view all the answers
Study Notes
Information Technology
- Encompasses all technology used for collecting, processing, protecting, and storing information.
- Includes hardware, software, and computer networks.
- Foundation of the economy and a driving force of social change in the 21st century.
Computers
- Electronic devices that operate under the control of instructions stored in their memory.
- Process information through a cycle of input, processing, storage, and output.
Computer System Components
- Speed: Measured in MIPS (Million Instructions Per Second), reflecting how quickly a computer completes tasks.
- Accuracy: Computers are highly accurate, but errors can occur due to faulty data input or programming.
- Reliability: Computers are not affected by human factors such as fatigue, making them reliable for repeated tasks.
- Versatility: Computers handle a diverse range of tasks, from simple to complex, across various fields.
- Storage Capacity: Refers to the computer's ability to store data and programs.
Types of Computers
- Personal Computer (PC): Intended for personal use.
- Laptop: Portable computer designed for personal use with a focus on portability and aesthetics.
- Tablet: Convienient, small-sized computer resembling a personal computer.
- Smartphone: A portable electronic device used for communication.
- Netbook: A small, convenient computer that easily connects to mobile phones.
Data Storage
- CD (Compact Disc): Optical disc used for data storage with a standard capacity.
- DVD (Digital Versatile Disc): Optical disc primarily used for video storage due to its larger capacity.
- Blu-ray Disc: Successor to DVD, available in various capacities based on the number of layers and capacity per layer.
- SD Card (Secure Digital Card): Flash memory used for data storage in devices like digital cameras, cell phones, and MP3 players.
- USB Flash Drive: Flash memory that retains data even when not powered, ensuring data integrity.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
INTRODUCTION
