CD/DVD-ROM

CD-Rom (compact disk- read only memory)
Compact Disks are computer hardware parts invented by Sony © and Philips © in 1981 in order to constitute a compact audio support of high quality allowing a direct access to the numerical tracks. It was officially launched in October 1982. To install software in your cheap computer your will need a CD-Rom.DVD-Rom (digital versatile disk- read only memory)the dvd-rom is an "alternative" for the CD-Rom whose capacity is larger than the CD-Rom
CD-writerCD-Writers are computer hardware parts very useful to save large file like graphics, pictures, and music.Access time The access time is the time that the laser takes to reach the data on the disk. It is measured in millisecond. In CD-ROM the access time is lower than 100 milliseconds and lower than 150 milliseconds in DVD-ROM. Lower the access time, the better it is.