Flashcards
Flashy
Flashcards do conjunto (18)
- 1Today’s IT infrastructure is composed of five major componentscomputer hardware,
computer software,
data management technology,
networking and telecommunications technology, technology services - 2System softwaremanages the resources and activities of the computer.
- 3Application softwareapplies the computer to a specific task for an end user, such as processing an order or generating a mailing list.
- 4Data management softwareorganizes, manages, and processes business data concerned with inventory, customers, and vendors.
- 5The principal storage technologies aremagnetic disks, optical disc, magnetic tape, and storage networks.
- 6magnetic diskA secondary storage medium in which data are stored by means of magnetized spots on a hard or floppy disk.
- 7magnetic tapeInexpensive, older secondary- storage medium in which large volumes of information are stored sequentially by means of magnetized and non magnetized spots on tape
- 8A USB flash driveprovides portable flash memory storage by plugging into a computer’s USB port. It can provide up to 256 gigabytes of portable storage capacity and is small enough to fit into a pocket.
- 9Optical DiscsThese discs use laser technology to store large quantities of data, including sound and images, in a highly compact form. They are available for both PCs and large computers.
- 10CD- ROM ( compact disk read- only memory)Read- only optical disk storage used for imaging, reference, and database applications with massive amounts of unchanging data and for multimedia.
- 11Digital video discs ( DVDs)are optical discs the same size as CD- ROMs but of even higher capacity, storing a minimum of 4.7 gigabytes of data.
- 12Input devicesgather data and convert them into electronic form for use by the computer. ex. keyboard
- 13output devicesDevice that displays data after they have been processed. ex. monitor
- 14Cloud computingrefers to a model of computing in which firms and individuals obtain computing resources and software applications over the Internet ( also referred to as “ the cloud”).
- 15Cloud computing consists of three different types of servicesCloud infrastructure as a service
Cloud platform as a service
Cloud software as a service
- 16operating system.The system software that manages and controls the computer’s activities
- 17Software As a Service ( SaaS)•Services for delivering and providing access to software remotely as a Web- based service.
•Users paying either on a subscription or per- transaction basis.
ex. Salesforce.com
- 18open source softwareLinux is an example of , which provides all computer users with free access to its program code, so they can modify the code to fix errors or to make improvements.
