computer. It had 40 tracks, 10 kB of storage space, and spun at 12,500 revolutions per minute. The Hard Disk Drive The first hard disk drive was the IBM Model 350 Disk File that came with the IBM 305 RAMAC computer in 1956. It had 50 24-inch discs with a total storage capacity of 5 million characters (just under 5 MB). Above: IBM Model 350, the first-ever hard disk drive. The first hard drive to have more than 1 GB in capacity was the IBM 3380 in 1980 (it could
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The performance of a computer system is based on numerous factors. The CPU, GPU (video card processor), RAM, VRAM, and hard drives all have some impact on how well a computer system performs. With the continuous use of hard drives, fragmentation occurs. This occurs when files cannot be contiguously stored. Basically, files are broken down and scattered around the hard drive. The computer than has to provide extra work to reassemble the files when needed. This effectively slows computer performance
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looking for a high-performance laptop, or something that'll last you for a good few years, go for a faster processor. Memory (Ram) Ram (random access memory) is your laptop's short-term memory, storing information while you're using the laptop (the hard drive is used for long-term file storage). The amount of Ram your laptop has determines how many tasks it can accomplish simultaneously. Aim for as much Ram as you can afford – ideally at least 4GB to make it easier to rip music while you're surfing
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A History of Microprocessor Transistor Count 1971 to 2013 Source: Wikipedia, August 29, 2013 Processor Intel 4004 Intel 8008 MOS Technology 6502 Motorola 6800 Intel 8080 RCA 1802 Intel 8085 Zilog Z80 Motorola 6809 ARM 1 ARM 2 Intel 8086 Intel 8088 ARM 6 Intel 80186 Motorola 68000 Intel 80286 Intel 80386 ARM 3 ARM 7 Intel 80486 R4000 Pentium AMD K5 Pentium Pro Pentium II AMD K6 Pentium III Transistor count 2,300 3,500 Date of introduction 1971 1972
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computer itself. They are external to the CPU. They do not include the CPU, memory and power supply. T/F. The peripherals in a mainframe computer are similar, except larger, with more capacity. They may be 100 keyboards and terminals and a hard drive array. T/F. Computer storage is often conceptualized hierarchically, based upon the speed with which data can be accessed. In the hierarchy of storage, access to CPU __________________________ is essentially instantaneous, since they are
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Loss of Private Information Background On 3 May 2006, a Department of Veterans Affairs (VA) laptop was stolen from a VA data analyst’s home in Montgomery County, Maryland. In addition to the laptop, a personal external hard drive was stolen. The external hard drive contained the personal data (names, social security numbers, dates of birth, disability ratings) for 26.5 million veterans and their spouses. It should be noted that the massive data theft was only one of many that had been discovered
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Network Attached Storage (commonly abbreviated to NAS) are hard disk storage devices which you can connect to your home or office network. They enable multiple computers in a network to share the same storage space at once. Access to the NAS device is over a computer network (usually via TCP/IP) rather than being directly connected to the computer (as in internal hard drives or external USB/SCSI drives). The NAS devices are assigned an IP address and are accessed by clients (PCs or laptops) via
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versus Mac It’s been years for Mac and PC user to dislike each other. When the newer versions of operating systems were introduced by Microsoft and Apple, the war between PC windows 8 and for Mac OSX 10.8 Mountain Lion really heats up. It makes it hard for a business to choose and implement a computer system that is easy to use, efficient with cost and performance, reliable and long lasting. Let’s look into some specification on the PC and Mac: Mac refers to Macintosh that produced by apple that
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maintenance of the computer. Whether it is a laptop or desktop the most common part of an operating system is virtual memory. Based on how much memory a computer has determines how many programs can be run. Virtual memory uses free space found on the hard drive in order to allow other programs to run. This seamless transition is unnoticeable to the human eye. Because the virtual memory frees up space in the Random Access Memory, other applications can load. This is an automatic process, so even with
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computer? Have you ever wondered how to make a computer on your own with step by step directions? To build a low end workstation for a business or server you would have to have the proper motherboard, computer case, RAM, power supply, hard drive, CPU, and a DVD disk drive. When you are looking to build a computer you need to make sure that all of the parts are compatible and will fit in your tower. I would first look for a motherboard and computer case. I went with a biostar G41D3 motherboard. It is
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