求计算机英语好的～～帮帮忙～

求计算机英语好的～～帮帮忙～Desktop system units typically contain the system's electronic components and selected secondary storage devices Input and output devices,such as a mouse,keyboard,and monitor are locted outside the system unitNotebook system units are portable and much smaller.these units contain the electronic components.selected secondary storage devices,and input devices(keyboard and poining device).located outside the sys-tem unit,the monitor is attached by hinges.Personal digital assistant(pda) system units ars the smallest and contain an entire computer system including the electronic components,secondary storage,and input and output devices急用~大家帮帮忙谢谢了~