Systems Architecture
7th Edition
ISBN: 9781305080195
Author: Stephen D. Burd
Publisher: Cengage Learning
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Chapter 1, Problem 1RP
Program Plan Intro
Hard disk:
Hard disk drive is a high-speed storage device that contains high capacity, which is built inside the system unit. It comprises of one or more flexible, circular platters use magnetic particles to store data or information.
- The rotating disks on disk drive are referred to as platters in which the programs and data are processed and stored with the results.
- Hard disks are separated into sections called as partitions.
- The partitioning of hard disk is required because if the user of the system requires to run more than one
operating system
Solid-state drives (SSD):
SSD stands for Solid State Drive. It is a non-volatile secondary storage that stores the data on solid state flash memory and it contains individual processor to manage and control its storage.
Explanation of Solution
Sites that provide useful information:
The sites that provide useful information for searching about the storage devices are “www.tomshardware.com” and “www.itworld.com”.
Sites that enables to find the information easier:
The site that enables to find the information easier is www.tomshardware.com. This site provides detailed description and specification of the device and thus it makes the user to find the required products.
Sites having large number advertisement:
The site that displays large number of advertisement is “www.networkworld.com”. While surfing on this page, it pops with different advertisement and makes the user to navigate to different links...
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make corrections of this program based on the errors shown. this is CIS 227 .
Create 6 users: Don, Liz, Shamir, Jose, Kate, and Sal.
Create 2 groups: marketing and research.
Add Shamir, Jose, and Kate to the marketing group.
Add Don, Liz, and Sal to the research group.
Create a shared directory for each group.
Create two files to put into each directory:
spreadsheetJanuary.txt
meetingNotes.txt
Assign access permissions to the directories:
Groups should have Read+Write access
Leave owner permissions as they are
“Everyone else” should not have any access
Submit for grade:
Screenshot of /etc/passwd contents showing your new users
Screenshot of /etc/group contents showing new groups with their members
Screenshot of shared directories you created with files and permissions
⚫ your circuit diagrams for your basic bricks, such as AND, OR, XOR gates and 1 bit multiplexers,
⚫ your circuit diagrams for your extended full adder, designed in Section 1 and
⚫ your circuit diagrams for your 8-bit arithmetical-logical unit, designed in Section 2.
1 An Extended Full Adder
In this Section, we are going to design an extended full adder circuit (EFA). That EFA takes 6 one bit inputs: aj, bj,
Cin, Tin, t₁ and to. Depending on the four possible combinations of values on t₁ and to, the EFA produces 3 one bit
outputs: sj, Cout and rout.
The EFA can be specified in principle by a truth table with 26 = 64 entries and 3 outputs. However, as the EFA
ignores certain inputs in certain cases, it is easier to work with the following overview specification, depending only
on t₁ and to in the first place:
t₁ to Description
00
Output Relationship
Ignored
Inputs
Addition Mode
2 Coutsjaj + bj + Cin, Tout= 0
Tin
0 1
Shift Left Mode
Sj = Cin,
Cout=bj, rout = 0
rin, aj
10
1 1
Shift Right…
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