MIS Lesson2 Hardware
1 like•1,367 views
The document discusses various topics related to information technology including hardware, software, data storage, computer components, and networking. It provides details on CPUs, memory, storage devices, input/output devices, and networking infrastructure. Examples of hardware, software, and components needed for a small business IT system are listed. Benefits of IT and open source software are mentioned. Basic computer architecture and components like the CPU, memory, and storage are defined.
MIS Lesson2 Hardware
- 1. Information Technology Information can be processed manual can be using technology computer hardware computer software communication Technology can be used to process information more effectively and efficiently IT is essentially a convergence of technological developments in hardware, software and communications which constructively relate and interact with potential information users IT is the hardware and software that make information systems possible January 2, 2010 Information Technology David Asirvatham
- 2. IT Benefits of IT improves efficient improve quality of information (e.g. accuracy) greater flexibility and responsiveness increase access to users enhance user interaction better communication January 2, 2010 Information Technology David Asirvatham
- 3. Basic Terms Hardware Software CPU RAM I/O devices Storage devices Microcomputers, minicomputers and mainframes bits, bytes, KB, MB, and GB pixels analog vs digital digitising data compression data encryption January 2, 2010 Information Technology David Asirvatham
- 4. Bits and Bytes bit: b inary dig it 1 byte = 8-bits American Standard Code for Information Interchange (ASCII) January 2, 2010 Information Technology David Asirvatham
- 5. January 2, 2010 Information Technology David Asirvatham
- 6. Basic Elements of a computer January 2, 2010 Information Technology David Asirvatham INPUT OUTPUT Main Memory ALU Control Unit Computer Secondary Storage Microprocessor
- 7. January 2, 2010 Information Technology David Asirvatham
- 8. January 2, 2010 Information Technology David Asirvatham microprocessor
- 9. ICT Infrastructure A small business organisation with 20 employees, plan to setup and IS system for the organisation. List ICT infrastructure (Hardware/Equipment) that will be needed? Use the Internet for this exercise You will need to give some details of the components/hardware January 2, 2010 Information Technology David Asirvatham
- 10. CPU & Memory January 2, 2010 Information Technology David Asirvatham
- 11. HDD, DVD & Graphic Card January 2, 2010 Information Technology David Asirvatham
- 12. CPU: Others January 2, 2010 Information Technology David Asirvatham
- 13. Options January 2, 2010 Information Technology David Asirvatham
- 14. January 2, 2010 Information Technology David Asirvatham Discussion: What are the benefits of using Open Source Software? What are the issues and challenges in deploying open source in your company? What can be done to address these issues? If you are the CIO, would you deploy OSS in your company? Why? The Corporate World Migrates to Open-Source
- 15. January 2, 2010 Information Technology David Asirvatham Interactive Session: Open-Source Exercise: Search the Internet and list the OSS that will be useful to your company.
- 16. 64-bit Processor vs 32-bit Processor A 64-bit processor is a microprocessor with a word size of 64 bits a requirement for memory and data intensive applications such as computer-aided design ( CAD ) applications, database management systems, technical and scientific applications, and high-performance servers. 64-bit computer architecture provides higher performance than 32-bit architecture by handling twice as many bits of information in the same clock cycle . January 2, 2010 Information Technology David Asirvatham
- 17. CPU January 2, 2010 Information Technology David Asirvatham Can you identify the components?
- 18. Dual Core Technology Dual core technology refers to two individual microprocessors on a single die cast chip. This is essentially two computer processing units (CPUs) in one. The advantage of a dual core chip is that tasks can be carried out in parallel streams, decreasing processing time. This is referred to as thread-level parallelism (TLP) . January 2, 2010 Information Technology David Asirvatham
- 19. DDR-SDRAM Double-Data-Rate Synchronous Dynamic Random Access Memory , better known as DDR SDRAM or DDR RAM for short, is a type of very fast computer memory. DDR RAM is based on the same architecture as SDRAM, but utilizes the clock signal differently to transfer twice the data in the same amount of time. January 2, 2010 Information Technology David Asirvatham
- 20. Storage devices Magnetic tape Floppy disk Hard disk Optical disk/DVD/etc January 2, 2010 Information Technology David Asirvatham Tracks Sectors Index track Index hole Access time - seek time - latency time - R/W time DISK TAPE o
- 21. HDD January 2, 2010 Information Technology David Asirvatham
- 22. HDD – RAID Level 0 January 2, 2010 Information Technology David Asirvatham RAID (originally redundant array of inexpensive disks , now also known as redundant array of independent disks ) refers to a data storage scheme using multiple hard drives to share or replicate data among the drives.
- 23. HDD – RAID Level 1 January 2, 2010 Information Technology David Asirvatham
- 24. HDD – Level 10 January 2, 2010 Information Technology David Asirvatham
- 25. HDD – RAID 0+1 January 2, 2010 Information Technology David Asirvatham
- 26. I/0 devices Input devices Keyboards & mouse Digital camers Scanners Touch screens Optical readers (OCR, MICR or OMR) Bar code scanners, etc Voice recognition RFID HDD Output devices Printers (hard copy) monitors/consoles plotters Microfilms HDD January 2, 2010 Information Technology David Asirvatham
- 27. Image Capture: Digital Camera 6-10 M pixel Storage Media (xD, SD, Flash Card, etc) Removable 2MB CompactFlash memory card View Finder: 1.8" color LCD Image Compression: JPEG Image Quality: 24-bit color PC interface cable and Video-out cable January 2, 2010 Information Technology David Asirvatham xD card Compact card SD (Secure Card)
- 28. Image Capture: Scanner 1200 dpi Hardware Super Sampling 600 dpi Optical Resolution SCSI compatible 36-Bit and Superior Quality Optics Network Ready Windows 95, 98, and NT 4.0 Compatible January 2, 2010 Information Technology David Asirvatham
- 29. Storage Servers January 2, 2010 Information Technology David Asirvatham
- 30. Storage Server (con’t) January 2, 2010 Information Technology David Asirvatham
- 31. January 2, 2010 Information Technology David Asirvatham
- 32. Tape Storage for Backup January 2, 2010 Information Technology David Asirvatham
- 33. Storage media CD-ROM (Compact Disc - Read Only Memory) 650MB = 430 floppy = 250,000 pages Advantages: cost, quality, speed, lower duplication cost, permanent storage, multiple secure access & searchable (direct access), speed: 4X, 10X, 40X, etc (600, 900, 1200 KBps etc.) CD-R & CD-RW write-once or read-write technology Photo CD photo images can be transferred to the photo CD can be played on a computer or CD-I player January 2, 2010 Information Technology David Asirvatham
- 34. Storage media VCD Video compact disk DVD A single-interchange standard for both TV-based and PC applications Backward-read compatibility with existing CDs A low-cost format Reliable data storage and retrieval High online capacity (135 minutes of MPEG-2 video on a single side) High performance for sequential and non-sequential data High-quality video & sound January 2, 2010 Information Technology David Asirvatham
- 35. Storage Media DVD-RAM high-capacity, high-performance optical disk data can be read, written and erased Similar to floppy disk, allowing users to copy and delete files from it, and use it to run programs offers all of the benefits of DVD including high capacity and compatibility with CD formats January 2, 2010 Information Technology David Asirvatham
- 36. Others January 2, 2010 Information Technology David Asirvatham VIDEO CAPTURE CARD HUB NETWORK CARD
- 37. Hardware Selection Two important steps in hardware selection Formulating the Objectives Define the systems specification Objectives capacity for an expansion workload increase throughput reduce turnaround time provide new application improve production & computation establish desired mode of operation January 2, 2010 Information Technology David Asirvatham
- 38. Checklist Performance What is the speed, capacity and throughput? Cost What is the purchase price? What will be its cost of operations and maintenance? Reliability Is it widely used? What is the risk of malfunction? What are the error control and diagnostic features? January 2, 2010 Information Technology David Asirvatham
- 39. Checklist Availability Delivery date Compatibility Is it compatible with existing hardware? Is it compatible with existing or other software provided by other vendors? Modularity Can it be upgraded? Technology new untested product risk of obsolescence January 2, 2010 Information Technology David Asirvatham
- 40. Checklist Connectivity Can it be link to LAN & WAN of different type of computers? Environmental requirement Electrical, air-con and other requirements Software Availability of wide range of application and systems software Support support and services from vendors Online & hotline support January 2, 2010 Information Technology David Asirvatham
- 41. Case Study A college with 5,000 students and 100 lecturers plans to setup two computer laboratories with network facilities. Each laboratory will have 25 computers and a server. The following applications will be used on the computers in the laboratories: E-mail Internet Web page development Java Programming Database applications You are required to prepare the tender documents for the purchase and installation of the network. You tender document should include: (i) Computer specifications (ii) Server specifications What will be the benefits of having a network environment? What type if software are needed? Estimate the budget needed for the above project. January 2, 2010 David Asirvatham