This has led to a plethora of more or less standardized file structures for all imaginable purposes, from the simplest to the most complex. Most computer files are used by computer programs which create, modify or delete the files for their own use on an as-needed basis. The programmers who create the programs decide what files are needed, how they are to be used and (often) their names. Explain how an operating system manages multiple processes… Memory management is the function of a computer operating system responsible for managing the computer's primary memory. The memory management function keeps track of the status of each memory location, either allocated or free.
b. Megabyte 3. Which answer lists the correct number of bits associated with each term? c. 64 bits per quadruple word 4. Which of the following answers are true about random-access memory (RAM) as it is normally used inside a personal computer? (Choose two answers.)
The CPU tells the RAM which address holds the data that the CPU wants to read 6. A user has opened a word processor, typed the numbers 123456789, and stored the document as a file called report1. Which of the following determines, in part, what bits the computer stores in the file to represent the typed into the report? C. Character set 7. A user has opened a calculator application, typed the numbers 123456789, and then done some math problem using this number.
The actual machinery - wires, transistors and circuits is called hardware; the instructions and data are called software. All general purpose computers require the following hardware components: (i) Central Processing Unit (CPU): The ‘brain’ of the computer, the component that actually executes instructions. (ii) Memory : It enables a computer to store, at least temporarily, data and programs. (iii) Input device : Usually a keyboard or mouse is used to read data and programs into the computer. (iv) Output device: A display screen, printer, etc.
a. ENIACs b. microprocessors c. memory chips d. operating systems 5. The computer stores a program while the program is running, as well as the data that the program is working with, in __________. a. secondary storage b. the CPU c. main memory d. the microprocessor 6. This is a volatile type of memory that is used only for temporary storage while a program is running. a. RAM b. secondary storage c. the disk drive d. the USB drive 7.
NT1110: Computer Structure and Logic Components of motherboards: The CPU (Central Processing Unit) component of the computer acts as the brain which is responsible for decoding, fetching and executing program instructions. The motherboard contains two major buses, the system bus and the I/O bus. These buses carry all the information between different parts of the computer. The motherboard also has memory slots which temporarily stores data when working on computers, it also increases computer’s total resources. The motherboard also has expansion slots most commonly used by audio and video cards, although the slots can be utilized by many other types of cards.
Relocation, sharing, physical organization, protection logical. What kind of memory address does a central processing unit (CPU) generate? Logical address What kind of memory address does a memory management unit (mmu) generate? Physical address What is the process of loading a process from secondary memory into primary memory? Input/ output channel from transferring data Homework -What are three main purposes and operating system?
20. A. Information that identifies each individual pixel on the computer display B. A binary code for each pixel, defining its color List the Words Inside Acronyms RAM: random-access memory OS: operating system CPU: central processing unit KB: kilobytes MB: megabytes GB: gigabytes TB: terabytes USB: universal serial bus HDD: hard disk drive ODD: optical disc drive I/O: input and output DPI: dots per
* Describe how computers store data. The data is written magnetically to the hard drive. * Explain how programs work. process A series of actions or steps taken to achieve an end. procedure A series of actions conducted in a certain order.
(Passer & Smith, 2007, p.234). This metaphor broke memory down into three simple processes: encoding, storage and retrieval. Encoding: the translation of information into a neural code for the brain to process just like a keyboard translates key strokes into electrical codes for a computer. Storage: the retaining of information just as the RAM (random access memory) or hard drive retains information in a computer. Retrieval: the process in which stored information is accessed by the brain similar to that of a software command that opens a file from the hard drive on a computer.