STORAGE DEVICES

-


STORAGE DEVICES
These are devices used to store data, information and programs.
They are non- volatile and higher storage capacity. They are also referred to as backup storage. Examples of storage devices are:
·  Flash drive
·  Floppy disk
·  Hard disk
·  Memory card
·  Compact disk(CD)
·  Digital video (DVD) etc.

 
1.     FLASH DRIVE: This is a small and potable memory. It is a new technology of storage device with a high storage capacity ranging from 64 MB to over 8 GB. The device is connected to the computer through the USB port.
2.     FLOPPY DISK: This is a removable storage media made with similarities to the technology of a radio cassette. It is thicker in nature and stores little amount of data.
3.     HARD DISK: This is magnetic disk that has the capability to store more data and is faster than floppy disk in terms of access time. Hard disk can store many hundreds of megabytes or gigabytes. There are two types of hard disk. The internal hard disk and external hard disks. The internal hard disks are installed inside the computer while the external hard disks are connected to the computer.
4.     MEMORY CARD: Memory card or media card is a storage device that is very small in outlook. It is used for storage data/ documents. In most cases, it is used in mobile phones for storing music, videos, images etc.
5.     COMPACT DISK (CD): This is a small portable kind of disk used for backing up data. They are used for recording, storing and playing audio, video and any other information in digital form.
6.     DIGITAL VIDEO DISK (DVD): It is the optical disk storage device of the same size as the CD but of higher capacity. DVDs can be single or double sided. DVD comes in different formats such as: DVD+RW (Rewritable), DVD+R (Recordable), DVD- RAM (Random Access Memory) etc.


Comments

Post a Comment

Popular posts from this blog

COMPUTER PROFESSIONALS/PEOPLE WARE

-
COMPUTER PROFESSIONALS/PEOPLE WARE Computer professionals are the people that specialized in using computer to do one thing or the other. They are people who made use of computer. Computer professionals undergo serious training in their field of study, so that he or she will master its field and become professional in the field. Some of the computer professionals are. 1.                   COMPUTER MANAGER Computer manager is someone that specialized in the control and management of computer business. Computer manager makes decisions on how a particular job should be done.
Read more

PRECAUTIONS TO BE TAKEN WHEN WRITING PROGRAMS

-
PRECAUTIONS TO BE TAKEN WHEN WRITING PROGRAMS 1.               Do not rush. Be careful, stable and patience when writing programs. 2.               No step should be skipped. 3.               The order of execution must be followed sequentially. STEPS IN PROGRAM DEVELOPMENT
Read more

ICT-BASED GADGETS

-
ICT-BASED GADGETS ICT-based gadgets are basically devices used for information and communication technology. Some of the ICT-based gadgets are: 1.      MOBILE PHONE : A mobile phone is an electronic handheld device used to make mobile telephone calls common manufactures of mobile phones are MOTOROLAR, SAMSUNG, BLACKBERRY, e t c 2.      COMPUTERS: A computer is an electronic device for storing and processing data.   Computers come in various types: some common computer types are:
Read more