Did you find this document useful? Is this content inappropriate? Report this Document. Description: computer science. Flag for inappropriate content. Download now. For Later. Basic Structure of Computer Hardware and Software.
Related titles. Carousel Previous Carousel Next. United States v. American Can Co. Same v. Missouri Can Co. Detroit Can Co, U. Jump to Page. Search inside document. A computer system also requires an input which is processed to get the desired output. Memory: enables a computer to store, at least temporarily, data and programs. Control Unit CU : responsible for instruction sequencing and branching. CPU controls and co-ordinates the operation of all other devices.
CPU contains intelligence of the machine, where calculations and decisions are take place. Registers are fast stand-alone storage locations that hold data temporarily. To execute instruction CU generates series of signals.
Some of which are : System Software Application Software System software A computer can execute a set of system software. Jhon Constantine. Zerihun Demere. Deepak Kumar Gupta. Daniel Nesprias. ABC News Politics. Nihk NIt. Bharat Namdeo Ambhore. Scribd Government Docs. Jump to Page. Search inside document. Display Unit, printer etc. Jayagopal Jai. Asif Mohd. Slavko Mihajlovic. Ramin Marampa. Charlie Arguelles. Devi Chowdary Karumanchi. Nose Nolose. Neil Basabe.
Fahad Hassan. Implementation and Impact of new technology in a firm. Veron Garcia. Jamara Pucan. Krish Power. Samuel Aikins. More From AtifMuhammad. Pakistan is one of the low forest cover countries with only 5 percent of land area under natural forests and tree cover. Popular in Engineering. Jebaraj Jeeva. These are used to hold the data binary information that are being processed by the current instruction.
Primary memory is memory that is part of the computer itself and necessary for its functioning. It consists of mainly two types of memories:. As soon as the machine is switched off, data is erased.
RAM is volatile. Volatile means that the data stored in memory is lost when we switch off the computer or if there is a power failure. There are different types of RAM available. Some of them are described below. The memory from which we can only read but cannot write on it.
This type of memory is non-volatile. The information is stored permanently in such memories during manufacture. A ROM, stores such instructions that are required to start a computer. This operation is referred to as bootstrap. The different types of ROM are given below. Floppy diskettes, hard disk, tapes and optical disks come under the category of external storage devices or ancillary storage devices. These devices are very sensitive to environmental conditions humidity and temperature as well as to external magnetic fields and need to be stored carefully.
Floppy disks are primarily used on PCs. Information on a floppy disk is recorded in the magnetized states of particles of iron oxides evenly placed upon concentric circles known as tracks. It is a non-removable enclosed magnetic disk included in most PCs. It contains a stack of metal platters, each coated with iron oxide, that spin on a spindle and the entire unit is encased in a sealed chamber. This is plastic tape, usually made of Mylar that is coated with iron oxide, thereby enabling the introduction writing ; retention memory and reading of magnetically recorded information.
The best use of tape storage is for data that you do not use very often. An optical disc drive ODD is a disk drive that uses laser light or electromagnetic waves for reading or writing data to or from optical discs normally CD-ROM. It is a data storage device that includes flash memory with an integrated USB interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc.
Peripheral devices are devices connected to the computer externally. If a peripheral device is disconnected, the computer will still be able to work; only functions performed by this peripheral device will not be available.
0コメント