计算机专业英语_unit04网络技术资料.pptVIP

Words and Expressions routine [ru:ti:n] n.【计算机】程序；例行程序 Interpreter n.【计算机】 翻译器，译印机，解释程序，翻译程序 functionality [,f??k???n?liti] n. 函数性(泛函性,官能度) , 功能（尤指软件、硬件的功能）21世纪大英汉词典》conceptually [k?nseptju?li] adv. 概念地21世纪大英汉词典》parallel [p?r?lel] adj.【电子学、计算机】并联的；n.【电子学、计算机】并联的 potentially [p?ten??li] adv. 潜在地，假定地. MMU abbr.Memory Manager Unit内存管理单元 synchronization [,si?kr?naizei??n] n.同步化21世纪大英汉词典》semaphore [sem?f?:] n.信号灯,旗语 non-blocking adj.非阻塞 Words and Expressions microkernel微核 Shell n.命令解译程序（连接并解译用户命令，调用并执行存储器中的程序） allocate [?l?ukeit] vi.vt.【计算机】分配，指定，保留 extensible [ikstens?bl] adj.可展开的，可伸展的，可延续的；可扩大的，可扩展的；可延伸的 downside [daun,said] n. 消极面,负面 navigation [,n?vigei??n] n. 航行,航海 guarantee [,g?r?nti:] v.n. 保证,担保；vt. 保证 RTOS abbr. Real Time Operating Systems实时操作系统 exotic [,iɡ‘z?tik] adj. 1.外来的，非本地的；2.【核物理学】异的；极不稳定的 Words and Expressions unobtainable [?n?btein?bl] adj. 无法得到的, 难获得的 partition [pɑ:ti??n] n. 分割,隔离物,隔墙 ; v.区分,隔开,分割 mechanism [mek?niz?m] n. 机械,机构,结构,机制，原理 upper-layer adj.上层的 category [k?tig?ri] n. 种类,类别 availability [?,veil?bil?ti] n.有效性；可用性，可得性，利用(或获得)的可能性 Exercises I. True or false? If correct, write T in parentheses; Otherwise, write F. （ ）1. The loop calls subroutines, each of which manages all of the hardware or software. （ ）2. This gives programmers an environment different to a desktop operating system like Linux or Microsoft Windows, and is therefore very productive for development. （ ）3. An interrupt could be generated for example by a timer in a predefined frequency, or by a serial port controller receiving a byte. （ ）4. After the interrupt handler has finished, these tasks are executed by any loop. （ ）5. A nonpreemptive multitasking system is very different to the simple control loop scheme, except that the loop is hidden in an API. （ ）6. The advantages and disadvantages are very similar to the control loop, so that adding new software is easier, by simply writing a new task, or adding to the queue-interpreter. （ ）7. Because of these compl