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Chapter 1 OSystems
Chapter 1 questions PCOS
| Question | Answer |
|---|---|
| The ____ is unique to each operating system. | User Interface |
| The ____ allocates each resource, starts its operation, and, finally, deallocates the resource, making it available to the next process or job. | Device Manager |
| ____ include(s) every peripheral unit in the system such as printers, disk drives, CD/DVD drives, flash memory, keyboards, and so on. | I/O Devices |
| In a computer, the ____ holds the Central Processing Unit, the Arithmetic and Logic Unit, registers, cache, and main memory. | tower |
| A supercomputer can perform ____ floating-point operations per second. | 2.4 trillion |
| Powerful microcomputers developed for use by commercial, educational and government enterprises are called ____. | workstations |
| ____ operating systems are typically used for a network platform. | Linux, NetWare, UNIX, Windows |
| The primary distinguishing characteristic of modern computers is ____. | processor capacity |
| ____ systems are used in time-critical environments where reliability is key and data must be processed within a strict time limit. | Real-time |
| A hybrid system is a combination of the ____ systems. | batch and interactive |
| ____ systems are computers placed inside other products to add features and capabilities. | Embedded |
| Vacuum tube computers were used during the period of ____. | 1940-1955 |
| Second-generation computers were developed to meet the needs of ____. | businesses |
| ____ introduced the need for control cards, which defined the exact nature of each program and its requirements. | Job scheduling |
| ____ means that several logical records are grouped within one physical record. | Blocking |
| In second-generation computers, to reduce the discrepancy in speed between the I/O and the CPU, an interface called the ____ was placed between them to act as a buffer. | control unit |
| The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, which is when the CPU is notified of events needing operating systems services. | interrupt |
| A system with ____ divides programs into parts and keep them in secondary storage, bringing each part into memory only as it is needed. | virtual memory |
| The ____ is used to indicate that a program is permanently held in ROM (read only memory), as opposed to being held in secondary storage. | firmware |
| The overwhelming demand for ____ capability in the mid-1990s sparked the proliferation of networking capability. | Internet |
| A typical ____ computer houses devices to perform audio, video, and graphic creation and editing. | multimedia |
| ____ is the partitioning of a single server, each of which can support a different operating system. | Virtualization |
| A thread (or ____) can be defined as a unit smaller than a process, which can be scheduled and executed. | lightweight process |
| The name for the nucleus of an operating system is the ____. | kernel |
| ____ are self-contained modules (units of software) that provide models of the real world and can be reused in different applications. | Objects |
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