Information systems and computer applications CLEP 2023/2024

A hard disk, also called a fixed disk, contains one or more inflexible circular platters and provides _____. - Answer-much greater storage capacity than a floppy disk or Zip disk Two examples of _____ are cable television lines, which use digital signals, and telephone lines, which sometimes use analog signals. - Answer-communications devices In a communications system, data and information travel over a communications channel. For best performance, a communications channel's _____. - Answer- andwidth should be high and latency low Although human speech uses continuous signals that vary in strength and quality, most computers are _____ and recognize only two discrete states, on and off. - Answer-digital _____ is a coding scheme implemented in several operating systems and is capable of representing almost all of the world's current written languages, as well as classic and historical languages. - Answer-unicode The design of computers, devices, and media in a network, sometimes called the _____, can be categorized as either client/server or peer-to-peer. - Answer-network architecture On a bus network, a single central cable connects all computers and devices. The risk to a bus network is that _____. - Answer-the bus itself might become inoperable Some stand-alone operating systems are called _____ because they also work in conjunction with a network operating system. - Answer-multitasking operating systems Programmers typically use either a compiler or interpreter to translate a program into machine language instructions that a computer can execute. An advantage of an interpreter is that _____. - Answer-when it finds errors, it displays feedback immediately _____ are complete object-oriented programming (OOP) languages that programmers can use to implement an object-oriented design. - Answer-C++ and Java Software today often has a _____, in which users interact with menus and visual images, such as icons, buttons, and other objects to issue commands. - Answer- graphical user interface (GUI)