Computer Hardware Questions and Answers 100% Pass

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Computer Hardware Questions and Answers 100% Pass RAM ✔✔fast-access memory that is cleared when the computer is power-down. Powersupply ✔✔is the device that supplies power to all the compon ... ents in the computer. Its case holds a transformer, voltage control, and (usually) a cooling fan Motherboard ✔✔the body or mainframe of the computer, through which all other components interface. provides the electrical connections by which the other components of the system communicate. HardDrive ✔✔non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Disc Drive ✔✔The CD writer drive can read and write a CD. CD writers are much more popular are new computers than a CD-ROM drive. Both kinds of CD drives are called optical disc drives because the use a laser light or electromagnetic waves to read or write data to or from a CD. solid state drive ✔✔a data storage device that uses solid-state memory to store persistent data. emulates a hard disk drive, thus easily replacing it in any application. SSDs have begun to appear in laptops because they can be smaller than HDDs. cpu ✔✔sometimes just called processor) is a machine that can execute computer programs. It is sometimes referred to as the brain of the computer. blu-ray ✔✔a newer optical disc storage media format. Its main uses are high-definition video and data storage. The disc has the same dimensions as a CD or DVD. The term "Blu-ray" comes from the blue laser used to read and write to the disc. disk array controller ✔✔a device which manage the physical disk drives and presents them to the computer as logical units. It almost always implements hardware RAID. firmware ✔✔loaded from the Read only memory (ROM) run from the Basic Input-Output System (BIOS). It is a computer program that is embedded in a hardware device, for example a microcontroller. As it name suggests, firmware is somewhere between hardware and software. DVD ✔✔(digital versatile discs) are another popular optical disc storage media format. The main uses for DVDs are video and data storage. Most DVDs are of the same dimensions as compact discs. CD ✔✔the most common type of removable media. They are inexpensive but also have short life-span. There are a few different kinds of . CD-ROM which stands for Compact Disc readonly memory are popularly used to distribute computer software although any type of data can be stored on them. removable media devices ✔✔If your putting something in your computer and taking it out is most likely a form of removable m. There are many different removable media devices. The most popular are probably CD and DVD drives which almost every computer these days has at least one of RAID ✔✔A disk array controller is a device which manage the physical disk drives and presents them to the computer as logical units. It almost always implements hardware R..I..D. Internal storage device ✔✔hardware that keeps data inside the computer for later use and remains persistent even when the computer has no power. [Show More]

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