6. 1800 2023 6. 1800 Spring 2023 Lecture #1: Complexity, modularity, abstraction plus an intro to client/server models pronounce this “six one eighty” (trust me) this class used to be numbered 6. 1800 2023 our goal is to build reliable systems from unreliable components. This is your third file system; you have now read about the Unix Filesystem, GFS, and now ZFS. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). ) The exam will cover all material from Lecture 1 - Recitation 13. The title of the paper is based on a famous quote: For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). Before reading the paper, refresh your memory on what race conditions are and the troubles that they can cause by revisiting sections 5. 1800 2023 link network transport application the things that actually generate traffic sharing the network, reliability (or not) examples: TCP, UDP 1993: commercialization policy routing naming, addressing, routing examples: IP communication between two directly-connected nodes examples: ethernet, bluetooth. Lectures deliver the fundamental technical concepts; recitations show you how those concepts are applied to real systems. edu) for help. The first six sections of this paper give context and motivation. The first exam in 6. Katrina LaCurts | lacurts@mit. programs should be able to communicate with each otherPreparation. 1800 2023 6. programs should be able toBefore Recitation This paper requires an MIT personal certificate for access: The UNIX Time-Sharing System. This project will extend over most of the semester, and will be done in teams. 1020, 6. Grades in 6. * Our department at MIT is in the midst of a global subject renumbering, so the official number is 6. programs should be able toKatrina LaCurts | [email protected] this is a class where we study real systems, students get more out of 6. 1800 scheduled for a three-hour slot, but the exam is only two hours, just like the first exam. edu Yael Tauman Kalai 32-G682 tauman@mit. 1800 2023 threat model: adversary controls a botnet, and is aiming to prevent access to a legitimate service via DDoS attacks policy: maintain. In 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 2. Slides: all animations, limited animations; Outline; Close-up recording of stack-smashing demos. This project is where the students get to design their own system, which is the primary objective of this course. Note that this paper uses the term "master". The second exam in 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). Akamai's actual platform is not described until Section 7. 2. 30% for Exams (two @ 15% each) 5% for Hands-ons. 6, and 7. programs shouldn’t be able to refer to (and corrupt) each others’ memory 2. Katrina LaCurts | [email protected]) and algorithms (18. Akamai's headquarters are right down the street from MIT. programs should be able to For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). (The. edu Teaching Assistants Ben Kettle BK bkettle@mit. Overview Office Hours Piazza. 3000 are recommended but not required. If you are struggling with any aspect of 6. Katrina LaCurts | [email protected] Help. Print this page. Read "Staring into the Abyss: An Evaluation of Concurrency Control with One Thousand Cores”; skip Sections 4. Katrina LaCurts | [email protected] | 6. 1800 | Lecture 16. Get Help. Students may substitute 18. It leverages the Explicit Congestion Notification (ECN) to obtain an early congestion feedback from routers/switches, before the queue drops packets. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). , streaming video). Design Project Hands-ons. This project will extend over most of the semester, and will be done in teams. Your answers to these questions should be in your own words, not direct quotations from the paper. Senior Lecturer, Undergraduate Officer, MIT EECS. edu | 6. Design Project Hands-ons. About the Bulletin Nondiscrimination Policy Accessibility. Many Internet applications, such as peer-to-peer applications are built as overlay networks. After 6. [8 points]: Jay is using UNIX. In tutorial, you'll learn communication skills to help you reason about systems, and describe and defend your own. (The desks in these rooms are close together, but both rooms will be at about 50% capacity. 1800 2023 modern linux has protections in place to prevent the attacks on the previous slides, but there are counter-attacks to those protections bounds-checking is one solution, but it ruins the ability to create compact C code (note the trade-off of security vs. 1800 2023 operating systems enforce modularity on a single machine using virtualization in order to enforce modularity + have an effective operating system, a few things need to happen 1. If you're unsure where to go with a question, just drop by office hours or email any member of the staff (your TA is a great point of contact). In tutorial, you'll learn communication skills to help you reason about systems, and describe and defend your own. programs shouldn’t be able to refer to (and corrupt) each others’ memory 2. Watch the following three instructional videos prior to this week's tutorial. 1800 covers four units of technical content: operating systems, networking, distributed systems, and security. edu | 6. 1800 2023 modern linux has protections in place to prevent the attacks on the previous slides, but there are counter-attacks to those protections bounds-checking is one solution, but it ruins the ability to create compact C code (note the trade-off of security vs. lacurts@mit. edu | 6. 1800 Learning Objectives. The paper contrasts Raft to an algorithm called Paxos: you do not need to know anything about Paxos to read this paper. The 11-6 degree aims to help undergraduates use their computer science skills to make positive social impacts. 1800 2023 6. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). The exam will cover all material from Lecture 15 - Recitation 26. 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 1800 Spring 2023, Exam 1 Page 4 of 11 3. This means doing the reading beforehand, turning in the question before recitation, etc. txt distance-vector routing TCP, UDP 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). ; Skim section 4 (Results) Closely observe figures 15 and 19, which show the queue occupancy as a function of time, and number of sources. 033, and ran under that number for literal decades (since before I was born!), so please forgiveGetting Help. This paper is different from many of the papers that we've read in 6. 676 is not offered this semester (Fall 2023). Calendar. Request a digital copy: Learn how to request a digital copy. e. we want to build systems that serve many clients, store a lot of data, perform well, all while keeping availability high transactions — which provide atomicity and isolation — make it easier for us to reason about failuresBefore Recitation. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 6. 1800 G 3-6-3 Design and implementation of secure computer systems. 40%:6. If your last name starts with letters A-O, go to 26-100; P-Z, go to 34-101. This paper describes Raft, an algorithm for achieving distributed consensus. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 1800 2023 6. except on 3/23, 4/27, and 5/18 when they'll be 1:00pm-2:00pm. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). This paper presents an argument that system designers can use when deciding where to place certain functionality in their system. Skim Sections 5, 6, and 8 (i. edu | 6. 1800 2023 6. e. The title of the paper is based on a famous quote: 6. 1800 the more experience they have in computer science. Katrina LaCurts | [email protected] will be on April 6, 7:30pm-9:30pm, in either 26-100 or 34-101. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). This paper explains how to build an overlay network on top of the existing Internet that has better properties or other features. (The desks in these rooms are close together, but both rooms will be at about 50% capacity. The slides look a little bit different, but the code and the demos are the same. The registrar has 6. 1800 will be on May 19, 9:00am-11:00am, in the Johnson Ice Rink. 77 Massachusetts Avenue Cambridge, MA 02139-4307. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). We use the word "controller" below in place of "master". 1800 Spring 2023. Raft was designed to be more understandable than Paxos. Grades in 6. Students entering in Fall 2022 or later must use the 2022 requirements. virtual memory bounded buffers (virtualize communication links) threads (virtualize processors) modularity and abstraction in networking: layering an abundance of. 5830 is a Grad-H class. 02 reading uses slightly different ACKs than what we'll see in lecture. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). edu | 6. edu | 6. Hands-on 3: Networking. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). You can enable closed-captioning on. Jay runs the following three commands inside of his home directory: Before Recitation. 6. Katrina LaCurts | [email protected] is the design project. 6. The exam will be "open book", which means you can use any printed or written. Note: This video is from 2022. If your last name starts with letters A-O, go to 26-100; P-Z, go to 34-101. Katrina LaCurts | lacurts@mit. 1800 covers four units of technical content: operating systems, networking, distributed systems, and security. 2, 5. Get Help. Ethernet is a ubiquitous standard for wired Local Area Networks (LANs), and this paper introduces its first version. This paper details a number of software systems that failed in spectacular ways, with most of the focus on a radiation machine made by Multidata called the Cobalt-60. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). Each of these components comprises roughly one third of your grade, according to the following breakdown: 35%: Technical Material. Watch the following three instructional videos prior to this week's tutorial; we recommend watching them in the order given below. 1800 2023 6. After reading Sections 5 and 6, you should understand the real-world performance of MapReduce. 1800 2023 operating systems enforce modularity on a single machine using virtualization in order to enforce modularity + have an effective operating system, a few things need to happen 1. Lectures are based on a study of UNIX and research papers. 5831 are based on the same quizzes and assigments as 6. 1800 2023 6. Outline. A large part of your grade depends on that. Katrina LaCurts | [email protected] Websites. As you read, think about the following:Katrina LaCurts | lacurts@mit. Thus, we don't allow adds after more than two weeks into the term, except in extenuating circumstances. His home directory contains exactly three files: X. Before Recitation. 1800 2023 operating systems enforce modularity on a single machine using virtualization in order to enforce modularity + have an effective operating system, a few things need to happen 1. Hands-on 2: UNIX. Slides: all animations, limited animations; Outline; Supplemental Reading: Chapter 19 of the 6. edu | 6. We would like to show you a description here but the site won’t allow us. 6, and 7. programs shouldn’t be able to refer to (and corrupt) each others’ memory 2. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 033 consists of three components: technical material, communication/system design and analysis, and participation. Asking questions . The total viewing time is 7 minutes. Ask a question: Reach out to us at mitpress_textbooks@mit. 1800 will be on April 6, 7:30pm-9:30pm, in either 26-100 or 34-101. programs shouldn’t be able to refer to (and corrupt) each others’ memory 2. This recitation will focus on the last half of the paper (starting with section 5). We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). If you have any trouble accessing any of these materials, please reach out to Katrina (lacurts@mit. 1800 Spring 2023 Lecture #1: Complexity, modularity, abstraction plus an intro to client/server models pronounce this “six one eighty” (trust me) this class used to be numbered 6. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 1800 Spring 2023 Lecture #9: Routing distance-vector, link-state, and how they scaleFor each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). , when congestion is limited, it reduces its congestion window. The exam will cover all material from Lecture 15 - Recitation 26. 1800 2023 our goal is to build reliable systems from unreliable components. This primary objective is supported by a few. Note that this chapter uses the term router where we will often use switch. 1800 2023 6. 1800 | Lecture 25. This paper discusses a few different types of attacks on DNS as well as DNSSEC, a proposed extension to DNS to mitigate some of the security concerns. Preparation. The primary assignment in 6. 033, and ran under that number for literal decades (since before I was born!), so please forgive For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 1800 2023 link network transport application the things that actually generate traffic sharing the network, reliability (or not) examples: TCP, UDP 1993: commercialization policy routing naming, addressing, routing examples: IP communication between two directly-connected nodes examples: ethernet, bluetooth. This is paper written by MIT authors in 2014, and published in VLDB (one of the top two conferences in the databases field). 1800 | Lecture 01. The overall program must consist of subjects of essentially different content, and must include at least five Course 18 subjects with a first decimal digit of 1 or higher. For this recitation, you'll be reading most of Resilient Overlay Networks. Before reading the paper, check out two very helpful websites, which have some useful. edu | 6. Katrina LaCurts | [email protected]) provide an introduction to the most theoretical aspects of computer science. This paper discusses a few different types of attacks on DNS as well as DNSSEC, a proposed extension to DNS to mitigate some of the security concerns. 997. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). DCTCP customizes the TCP congestion control algorithm for datacenters. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). The exam will cover all material from Lecture 15 - Recitation 26. Katrina LaCurts | [email protected] LaCurts | lacurts@mit. Katrina LaCurts | [email protected] will be based on the results of two quizzes (one in the middle of the term and one in final's week, 35% in total), labs 1-5 (55%), and class participation and homeworks (e. Read "Staring into the Abyss: An Evaluation of Concurrency Control with One Thousand Cores”; skip Sections 4. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 1800 Spring 2023 Lecture #2: Naming plus a case-study on DNSKatrina LaCurts | lacurts@mit. Watch the following two instructional videos prior to this week's tutorial. Section 3 describes their design, both the supporting elements and their approach to providing the POSIX layer. Katrina LaCurts | lacurts@mit. Slides: all animations, limited animations. 1800 2023 threat model: adversary is on the path between the client and the server S {PK A, SK A} A {PK S, SK S} this is different from how you saw public-key cryptography used for signatures, and different from how you saw symmetric keys used for encryption XXXXXX from:A to:S PK S alice is encrypting data toRead “It’s Time To Move On From Two Phase Commit”, by Daniel Abadi. 6. This paper uses the term man-in-the-middle (MITM) attack. The first two sections of the paper give many examples of instances where the end-to-end argument applies; later sections discuss some finer points. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). Asking questions . edu. 1800 | Lecture 26. , Room 38-476. 6. 1800 covers four units of technical content: operating systems, networking, distributed systems, and security. Topics include techniques for controlling complexity; strong modularity using client-server design, operating systems; performance, networks; naming; security and privacy; fault-tolerant systems, atomicity and coordination of concurrent activities, and recovery;. GFS is a system that replicates files across machines. About the Bulletin Nondiscrimination Policy Accessibility. 1800 Spring 2023 Lecture #25: Network-based attacks preventing access — denying service — to online resources. 1800 2023 link network transport application the things that actually generate traffic sharing the network, reliability (or not) examples: TCP, UDP 1993: commercialization policy routing naming, addressing, routing examples: IP communication between two directly-connected nodes examples: ethernet, bluetooth. 1800 2023 our goal is to build reliable systems from unreliable components. Katrina LaCurts | [email protected] you have any trouble accessing any of these materials, please reach out to Katrina (lacurts@mit. edu Teaching Assistants Ben Kettle BK [email protected] | 6. 5831 is a undergraduate class designed to satisfy the AUS requirement in the EECS curriculum. Section 2-4 of the paper describe the design of GFS, Section 5 discusses how GFS handles failures, and Sections 6-7 detail their evaluation and real-world usage of GFS. In working through the toy example—and to help you. Watch the following two instructional videos prior to this week's tutorial. edu | 6. *Katrina is the only person with a complicated office hours schedule. Katrina LaCurts | [email protected] will be on April 6, 7:30pm-9:30pm, in either 26-100 or 34-101. edu | 6. 1800 Spring 2023 Calendar Information. 6. 1800 Spring 2023 Calendar Information. Catalog description: Design and implementation of operating systems, and their use as a foundation for systems programming. 033, and ran under that number for literal decades (since. 1800 Spring 2023, Exam 1 Page 3 of 11 2. DNSSEC is not yet wideaspread. 3, 5. Some flexibility is allowed in this program. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 4100) where mathematical issues may arise. Katrina LaCurts | [email protected] 2023 operating systems enforce modularity on a single machine using virtualization in order to enforce modularity + have an effective operating system, a few things need to happen 1. 1800 covers four units of technical content: operating systems, networking, distributed systems, and security. ) Question for Recitation: Before you come to this recitation, you'll turn in a brief answer. Note that this chapter uses the term router where we will often use switch. edu | 6. Watch the following two instructional videos prior to this week's tutorial. edu | 6. Hands-on 1: DNS. Assignments. *Katrina is the only person with a complicated office hours schedule. 6. For Fall 2023 (and possibly in future semesters) you may petition to. Catalog description: Design and implementation of operating systems, and their use as a foundation for systems programming. 1800 Spring 2023 Calendar Information. 1800 | Lecture 23. Katrina LaCurts | lacurts@mit. The exam will be "open book", which means you can use any printed or written. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 404J or 18. Then, read Hybrid Dynamic Data Race Detection by O'Callahan and Choi. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). Section 2-4 of the paper describe the design of GFS, Section 5 discusses how GFS handles failures, and Sections 6-7 detail their evaluation and real-world usage of GFS. ) For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). mit. Get Help. 6. 2. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). edu | 6. )For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 033, and ran under that number for literal decades (since before I was born!), so please forgiveBefore Recitation. You can enable closed-captioning on the videos by clicking the [CC] button. We also require exposure to other areas of computer science (6. Katrina LaCurts | [email protected], and 5. 1800, 6. Some flexibility is allowed in this program. Overview Office Hours Piazza. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 1800 will be on April 6, 7:30pm-9:30pm, in either 26-100 or 34-101. 1800 Spring 2023 Lecture #1: Complexity, modularity, abstraction plus an intro to client/server models pronounce this “six one eighty” (trust me) this class used to be numbered 6. Read End-to-end Arguments in System Design. 400J) and algorithms (18. 1800 2023 6. Topics include virtual memory, threads, context switches, kernels, interrupts, system calls, interprocess communication, coordination, and the interaction between software and. 9800 Independent Study in Electrical Engineering and Computer Science. edu | 6. In tutorial, you'll learn communication skills to help you reason about systems, and describe and defend your own. 9830 Professional Perspective Internship (,,,). This means doing the reading beforehand, turning in the question before recitation, etc. 1800 | Lecture 19. 6. If your last name starts with letters A-O, go to 26-100; P-Z, go to 34-101. 1800, we define participation as follows: Coming prepared to recitation. edu | 6. You can enable closed-captioning on the. 6, and 7. What are my prospects? Much of the learning experience in 6. The registrar has 6. Course Calendar. Katrina LaCurts | lacurts@mit. It describes several problems with two-phase commit, and then points out that if we could build a system that didn't need to abort, these problems would go away. Meltdown, along with Spectre, is a security vulnerability that was discovered in 2018 that affected all modern Intel processors at the time. 1800 | Lecture 15. Prereq: Permission of instructor U (Fall, IAP, Spring, Summer)Units arranged [P/D/F]Can be. 1800 2023 a hash function H takes an input string of arbitrary size and outputs a fixed-length string H is deterministic: if x1 = x2, then H(x1) =. virtual memory bounded buffers (virtualize communication links) threads (virtualize processors) modularity and abstraction in networking: layering an abundance of hierarchy and 1970s: ARPAnet 1978: flexibility and layering early 80s: growth change late 80s: growth problems 1993: commercialization hosts. Students who entered MIT in Fall 2021 or earlier can choose between the 2017 and 2022 requirements. The total viewing time is ten minutes. To help as you read: Sections 2 and 3 give a very good overview of the necessary background, and a toy example to help you understand the basic attack. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). Assignments. Section 2 gives support for the context and motivation of RON. The design project requires you to develop a detailed system design to solve a real-world problem. we want to build systems that serve many clients, store a lot of data, perform well, all while keeping availability high transactions — which provide atomicity and isolation — make it easier for us to reason about failures6-2: Electrical Engineering and Computer Science. edu Questions? 61600-staff@csail. 4 of the textbook. Submit a proposal: Please review the details of how to submit a textbook proposal. Subject (course) information includes any changes approved for the current academic year. 1800 2023 a hash function H takes an input string of arbitrary size and outputs a fixed-length string H is deterministic: if x1 = x2, then H(x1) = H(x2) interlude: hash functions hash functions are not normal functions! they have a number of exciting properties H is collision-resistant: if x1 ≠ x2, then the For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). The total viewing time is ten minutes. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). The title of the paper is based on a famous quote:For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). This course introduces architecture of digital systems, emphasizing structural principles common to a wide range of technologies. 2. 4100) where mathematical issues may arise. If you are struggling with any aspect of 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). Section 3 describes their design, both the supporting elements and their approach to providing the POSIX layer. 5830, except that students may opt to do one additional (more exploratory) lab in place of the final project. Topics include virtual memory; file systems; threads; context switches; kernels; interrupts; system calls; interprocess communication; coordination, and interaction between software and hardware. 6-2: Electrical Engineering and Computer Science. A flexible combination of subjects, this major includes a focus on the areas in which both EE and CS overlap. Preparation. Topics include virtual memory, threads, context switches, kernels, interrupts, system calls, interprocess communication, coordination, and the interaction between software and hardware. Hands-ons. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). programs should be able toFor each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). 1810: Learning by doing. A large part of your grade depends on that participation, which you cannot make up. Before reading the paper, check out two very helpful websites, which have some useful. Katrina LaCurts | [email protected] 2023 link network transport application the things that actually generate traffic sharing the network, reliability (or not) examples: TCP, UDP 1993: commercialization policy routing naming, addressing, routing examples: IP communication between two directly-connected nodes examples: ethernet, bluetooth. You can enable closed-captioning on. Instructors Henry Corrigan-Gibbs 32-G970 [email protected] and 6. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). The title of the paper is based on a famous quote:6. 6. 1800 2023 link network transport application the things that actually generate traffic sharing the network, reliability (or not) examples: TCP, UDP 1993: commercialization policy routing naming, addressing, routing examples: IP communication between two directly-connected nodes examples: ethernet, bluetooth. For each lecture, we'll post slides and an outline before class (not necessarily at 9:00am, but we aim for a few hours ahead of time). (If you're having trouble accessing the paper,. programs shouldn’t be able to refer to (and corrupt) each others’ memory 2. out < N: bb. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). 6. edu | 6. (Routers and switches are technically different; in 6. 6. in – bb. edu | 6. We post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). The second exam in 6. You can accumulate that experience in various ways: UROPs, other classes, summer jobs, more interaction with systems such as Athena, etc. edu. 1800 | Lecture 09. 02 notes. Download PDF of this Page. Grading. Preparation. 1800 | Lecture 01.