Computer Hardware

Topics: Hard disk drive, Computer, Floppy disk Pages: 12 (2696 words) Published: March 8, 2013
Republic of the Philippines
Sultan Kudarat State University
Kalamansig Campus
Kalamansig Sultan Kudarat


A CT 321(Computer Interface) Midterm Project

Submitted by:

Aireen Rose R. Manguiran

Submitted to:

Ms. Mailyne Bacongco, CoE


I. Hardware ------------------------------------------------------------------------ 3 II. HDD (Hard Disk Drive)-------------------------------------------------------- 4 III. Memory Card-------------------------------------------------------------------- 5 IV. Memory Card Configuration------------------------------------------------- 5 V. CD/DVD ROM Configuration------------------------------------------------ 6-7 VI. Bus Line-------------------------------------------------------------------------- 8 VII. Types of Buses----------------------------------------------------------------- 8-9 VIII. Hardware Troubleshooting-------------------------------------------------- 9-15


Computer hardware equals the collection of physical elements that comprise a computer system. Computer hardware refers to the physical parts or components of a computer such as monitor, keyboard, hard drive disk, mouse, printers, graphic cards, sound cards, memory, motherboard and chips, etc. all of which are physical objects that you can actually touch. In contrast, software is untouchable. Software exists as ideas, application, concepts, and symbols, but it has no substance. A combination of hardware and software forms a usable computing system.

A data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than just sequentially. An HDD consists of one or more rigid ("hard") rapidly rotating discs (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces. The hard disk drive is the main, and usually largest, data storage device in a computer. The operating system, software titles and most other files are stored in the hard disk drive.

An electronic flash memory data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players and video game consoles. They are small, re-recordable, and able to retain data without power. Memory Cards

Memory Cards

In some cases, Pipeline execution might require you to increase the memory allocation of the Java process. The Java Component Container memory allocation can be defined in the files, located in the installdir/product/version/bin/init.ddirectory. You can set the option using set SNAP_JAVA_MEMORY=-Xmx'MEM_VALUE' to allocate 'MEM_VALUE' memory for the Java CC process. The default value is 256MB. Other valid values are -Xmx512, -Xmx1048 or -Xmx2048. In the case that your physical memory of the machine is exceeded during startup, then the Java CC process will fail to come up and write its log into installdir/logs/javacc_stderr. As an example: Some Linux kernels only provide 1.7GB available process memory. If you are setting the 'MEM_VALUE' to 2048 then the process will fail to start. The option should be set to the maximum available physical memory or below that limit. The memory configuration allows you to increase performance for certain Components such as the Sort or the Aggregate Component. Both allow you to configure its memory usage during execution. As an example, the Sort Component allows you to configure how much memory can be allocated by the Component to sort the records in memory before they are written to disk. Setting this to, for...
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