... most desktop and laptop machines. Increasingly, IDE drives are available in RAID configurations. Hard disks provide fast retrieval because they rotate constantly at high speed, from 5,000 to 15,000 rpm. In the 1980s, the first personal computer hard disks started at 5MB. Over the last 20 years ... past have been replaced by much faster 40 GB plus hard drives. The hard drive uses one internal light to select which data is read from the disks. TYPES OF HARD DISKS Interface Encoding Transfer rate Type Method* (Per sec) Capacities SCSI*** RLL 5 - 160MB 20MB - 75GB EIDE** RLL 3 - 100MB 500M...

• Word Count: 5237
• Approx Pages: 21
• Grade Level: High School

... concepts simultaneously by simply pressing a button to change colors, brushes or styles. Through the use of photo enhancing software such as Adobe Photoshop, artists have discovered entirely new ways of producing artwork. The convenience of change that software such as Photoshop provides gives speed and efficiency to the artist that was never dreamed possible two decades ago. However, endless possibilities ... opened up a zillion possibilities and I wanted to try them all. And I did!" (Meltzer, p 4) Computers have even been turned in to actual art. Darel Eschbach, the executive director...

• Word Count: 2964
• Approx Pages: 12
• Has Bibliography

... using existing available electrical components. The original IBM PC had a minimum of 16K of memory, but this could be upgraded to 512 if necessary, and ran with a processor speed of 4.77MHz. Ten years later, in 1991, IBM were making PCs with 16Mb of memory, expandable to 64Mb, running with a processor speed of 33MHz. The cost of buying the hardware has come down considerably as the machines have become ... such as modems, printers, tape backup, drives and CD-ROM drives Modern networks can also provide connections for telephones, fax machines and a wide variety of Internet-enabled device...

• Word Count: 3669
• Approx Pages: 15

... Windows, but this CPU is not powerful enough to carry out these multi-tasking operations. The 286 came with a bus width of 16-bit internal, 24-bit address, and 16-bit external, with an external speed of between 6MHz - 25MHz, and an internal speed of between 6MHz - 25MHz. The next CPU was the 386, this is also no longer produced it had a slightly faster running ... bit (internal, address, and external), with an external speed of between 20MHz - 50MHz. The differences between them were in the internal speeds of the CPU. The SX had an internal speed of between 20MHz - 50MHz, the DX had an ...

• Word Count: 3384
• Approx Pages: 14
• Grade Level: High School

... computers have improved. Pushed by demand, computers have become smaller and faster overnight; no longer are laptops the only type of portable computer. Palmtops and Personal Daily Assistants (PDA's) are their replacement. Input and output devices have multiplied. Everything from watches to light bulbs are networked (or connected) together. Computers no longer resemble what they once were. Those in the future will ... probably say the same about computers we use today. The desktop computer of today consists of four basic components: input devices, output devices, storage, and the centra...

• Word Count: 7384
• Approx Pages: 30
• Grade Level: High School

... to migrate the entire Datacore network to a Windows 2000 environment under Active Directory. This was the beginning of the Systems Design phase. In order to bring this viable solution into light, a detailed analysis of the project needs to be completed and presented to the stakeholders and managers of Datacore. This analysis includes a cost analysis, performance evaluation, implementation, security policies, access control, hardware and software ... storage for housing the backup repository. This SAN should be stored off site which will mean the purchase of a high to moderate speed inte...

• Word Count: 2999
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School

... thrown around by RAND, MIT and UCLA. In 1969 the first such node was installed in UCLA. By December of 69, there were four nodes on the network, which was called ARPANET, after its Pentagon sponsor. The nodes of the network were high-speed supercomputers. (supercomputers at the time, desktop machines now) Thanks to APRANET scientists and researchers could share one another ... 's computer facilities over long-distances. By the second year of its operation however, APRANET's users had warped the high cost, computer sharing network into a dedicated, high-speed, federally subsidized electron...

• Word Count: 2502
• Approx Pages: 10